A guide to Oribatid Identification for the ABMI: - Royal Alberta Museum

Version 2.3 January 2013Disclaimer: This electronic publication is for the purpose of identification and is not ataxonomic work: no new taxa or nomenclatural acts are proposed.Suggested citation: Walter, D.E., S. Latonas & K. Byers. 2013. Almanac of Alberta Oribatida.Part 1. Ver. 2.3. The Royal Alberta Museum, Edmonton, ABhttp://www.royalalbertamuseum.ca/natural/insects/research/research.htm

Almanac of Alberta Oribatida 2.3 13 January 2013Table of contentsThe 2012 Almanac of Alberta Oribatida ........................................................................................ 6Version 2.3 .................................................................................................................................. 6Version 2.0-2 ............................................................................................................................... 6Version 1.3 .................................................................................................................................. 7Version 1.2 .................................................................................................................................. 7Introduction .................................................................................................................................. 8Alberta ....................................................................................................................................... 9Oribatid Mites: Acari, Acariformes, Sarcoptiformes, Oribatida ................................. 9Previous research on Alberta’s oribatid species ......................................................... 10Map 1. Overview of the ABMI sites sampled for Oribatida from 2007-2011. ................ 11Guide to Identification Codes & Records ........................................................................... 12Keys, Image Use & Naming Rules .................................................................................... 12Format for genus records ................................................................................................... 13Format for species records ................................................................................................ 14Morphology of Oribatid Mites ................................................................................................ 15A Note on Terminology and Notations ........................................................................... 15Plates ....................................................................................................................................... 16ABMI Target Taxa (Oribatid mites over 0.3 mm in length) ............................................. 19I. Key to the Major Groups of Oribatida in Alberta ...................................................... 19Supercohort Enarthronotides Grandjean, 1947 ............................................................... 252. Key to the genera of Enarthronotides in Alberta (>0.3 mm) ................................. 25Brachychthonioidea ............................................................................................................. 26Brachychthoniidae Thor, 1934 ...................................................................................... 26Hypochthonioidea Berlese, 1910 (ITIS 733337) ............................................................ 28Hypochthoniidae Berlese, 1910 (ITIS 733392) .......................................................... 283. Key to adult Hypochthonius known from North America ..................................... 28Eniochthoniidae Grandjean, 1947 (ITIS 733393) ...................................................... 324. Key to adult Eniochthonius in North America .......................................................... 33Supercohort Parhyposomatides ........................................................................................... 375. Key to Genera of Parhypochthonioidea in Alberta ................................................. 37Parhypochthonioidea Grandjean, 1932 .......................................................................... 37Parhypochthoniidae Grandjean, 1932 ......................................................................... 37Gehypochthoniidae Strenzke, 1963 ............................................................................. 386. Key to adult Gehypochthonius in Canada ................................................................. 39Supercohort Mixonomatides (RAM 99000134) .................................................................. 40Euphthiracaroidea Jacot, 1930 (ITIS 733348) ................................................................ 407. Key to families & genera of Euphthiracaroidea potentially in Alberta .............. 40Euphthiracaridae Jacot, 1930 (ITIS 733413) .............................................................. 428. Key to adult Euphthiracarus in and near Alberta* .................................................. 439. Key to adult Rhysotritia* in Canada ............................................................................ 47Oribotritiidae Grandjean, 1954 (ITIS 733412) ............................................................ 4910. Key to adult Protoribotritia in Canada ...................................................................... 50Phthiracaroidea Perty, 1841 (ITIS 733349) ..................................................................... 53Phthiracaridae Perty, 1841 (ITIS 733415) .................................................................... 5311. Key to adults of genera and species of Phthiracaroidea in Alberta ................ 53Epilohmannioidea ................................................................................................................. 612

Almanac of Alberta Oribatida 2.3 13 January 2013Epilohmanniidae Oudemans, 1923 .............................................................................. 61Cohort Nothrina ......................................................................................................................... 63Crotonioidea Thorell, 1876 (ITIS 733350) ....................................................................... 6312. Key to Families of Crotonioidea in Alberta ............................................................. 63Nothridae Berlese, 1896 (ITIS 733417) ........................................................................ 6613. Key to Adults of Species of Nothrus in Canada* ................................................... 6614. Key to Monodactyl Nothrus species ......................................................................... 6815. Tridactyl Nothrus species ............................................................................................ 72Camisiidae Oudemans, 1900 (ITIS 733418) ................................................................ 7616. Key to the Genera of Camisiidae in Canada ........................................................... 7617. Key to adult Camisia in or near Alberta ................................................................... 7818. Key to adult Heminothrus in Canada ........................................................................ 8719. Key to adult Platynothrus in or near Alberta .......................................................... 93Malaconothridae Berlese, 1916 (ITIS 553093) ......................................................... 10120. Key to genera of Malaconothridae in Alberta ....................................................... 10121. Key to adult Trimalaconothrus in Alberta ............................................................. 104Trhypochthoniidae Willmann, 1931 (ITIS 733416) .................................................. 10722. Key to the Genera or species of Trhypochthoniidae in Canada ..................... 10823. Key to adults of species of Trhypochthonius known from North America .. 114Nanhermanniidae Sellnick, 1928 (ITIS 733420) ....................................................... 121Cohort Brachypylina (ITIS 733333) .................................................................................... 124B1. Key to the Superfamilies of Brachypylina (>0.3 mm) in Alberta ..................... 124Hermannielloidea Grandjean, 1934 (ITIS 733353) ...................................................... 141Hermanniellidae Grandjean, 1934 (ITIS 733422) ..................................................... 141Neoliodoidea Sellnick, 1928 ............................................................................................. 143Neoliodidae Sellnick, 1928 ........................................................................................... 143Plateremaeoidea Trägårdh, 1931 .................................................................................... 144Gymnodamaeidae Grandjean, 1954 (ITIS 733429) ................................................. 144B2. Key to genera of Gymnodamaeidae in Alberta ............................................... 144Damaeoidea Berlese, 1896 (ITIS 733357) ..................................................................... 154Damaeidae Berlese, 1896 (ITIS 7333431) .................................................................. 154Genera of Alberta Damaeidae ..................................................................................... 154B3. Key to Genera of Damaeidae in Canada ............................................................... 154B3a. Key to species of Belba s.l. in Alberta ............................................................ 158B3b. Key to species of Dyobelba in Alberta ............................................................ 160Alberta Epidamaeus ....................................................................................................... 164B3c. Key to species of Epidamaeus in and around Alberta ................................ 164Cepheoidea Berlese, 1896 (ITIS 733359) ...................................................................... 189Cepheidae Berlese, 1896 (ITIS 733434) ..................................................................... 189B4. Key to Genera of Cepheidae in North America ............................................... 190Ameroidea Bulanova-Zakhvatkina, 1957 ...................................................................... 213Hungarobelbidae Miko & Travé, 1996 ....................................................................... 213Eremaeoidea Oudemans, 1900 (ITIS 733364) .............................................................. 214Eremaeidae Oudemans, 1900 (ITIS 553092) Hermit Mites ..................................... 214B8. A Key to the Genera of Eremaeoidea of Alberta ............................................. 214Megeremaeidae Woolley & Higgins, 1968 ................................................................ 2323

Almanac of Alberta Oribatida 2.3 13 January 2013B11. Key to Families of Gustavioidea in Alberta .................................................... 233Astegistidae Balogh, 1961 ............................................................................................ 234B12. Key to Genera of Astegistidae in Alberta ....................................................... 235Gustaviidae Oudemans, 1900 (ITIS 733450) ............................................................ 237Liacaridae Sellnick, 1928 (ITIS 733451) .................................................................... 238Peloppiidae Balogh, 1943 ............................................................................................. 243Tenulialidae Jacot, 1929 (ITIS 733453) ...................................................................... 251Carabodoidea Koch, 1937 (ITIS 733370) ....................................................................... 256Carabodidae Koch, 1837 (ITIS 733496) ..................................................................... 256Oppioidea Sellnick, 1937 (ITIS 733367) ......................................................................... 262B20. Key to families and genera of Oppioidea (adults > 0.3 mm in length)Alberta ............................................................................................................................... 263Autognetidae Grandjean, 1960 (ITIS 733474) .......................................................... 265Oppiidae Sellnick, 1937 (ITIS 734017) (also see Part II) ......................................... 267Suctobelbidae Jacot, 1938 (ITIS 733488) .................................................................. 278Thyrisomidae Grandjean, 1954 (ITIS 733475) .......................................................... 286Tectocepheoidea Grandjean, 1954 (ITIS 733371) ....................................................... 293Tectocepheidae Grandjean, 1954 (ITIS 733499) ..................................................... 293Hydrozetoidea Grandjean, 1954 (ITIS 733372) ............................................................ 296Hydrozetidae Grandjean, 1954 (ITIS 553091) .......................................................... 297Limnozetidae Thor, 1937 (ITIS 7333517) ................................................................... 304Ameronothroidea Willmann, 1931 .................................................................................. 305Ameronothridae Willmann, 1931 ................................................................................ 305Cymbaeremaeoidea Sellnick, 1928 (ITIS 733374) ...................................................... 306Cymbaeremaeidae Sellnick, 1928 (ITIS 733505) ..................................................... 306Licneremaeoidea Grandjean, 1931 ................................................................................. 312Licnodamaeidae Grandjean, 1954 .............................................................................. 312Passalozetidae Grandjean, 1954 ................................................................................. 312Scutoverticidae Grandjean, 1954 ............................................................................... 316Phenopelopoidea Petrunkevitch, 1955 (ITIS 733376) ................................................ 317B34. Key to genera of Phenopelopoidea in Canada .............................................. 317Phenopelopidae Petrunkevitch, l955 (ITIS 733513) ............................................... 318Unduloribatidae Kunst, 1971 (ITIS 733514) .............................................................. 332Achipterioidea Thor, 1929 (ITIS 733379) ....................................................................... 334Achipteriidae Thor, 1929 (ITIS 733519) ..................................................................... 334Tegoribatidae Grandjean, 1954 (ITIS 733520) ......................................................... 349Oribatelloidea Jacot, 1925 (ITIS 733380) ...................................................................... 356B44. Key to Genera of Oribatellidae in Canada ...................................................... 356B45. Key to the species of Oribatella in Alberta .................................................... 359B46. Key to the species of Tectoribates in Alberta ............................................... 371Oripodoidea Jacot, 1925 (ITIS 733383) ......................................................................... 373B47. Key to genera and families of Oripodoidea in Alberta ................................ 373Haplozetidae Grandjean, 1936 (ITIS 733546) ........................................................... 377Mochlozetidae Grandjean, 1960 (ITIS 733531) ........................................................ 384Oribatulidae Thor, 1929 (ITIS 733533) ....................................................................... 385Parakalummidae Grandjean, 1936 (ITIS 733549) .................................................... 4064

Almanac of Alberta Oribatida 2.3 13 January 2013Scheloribatidae Jacot, 1935 (ITIS 733542) ............................................................... 414Ceratozetoidea Jacot, 1925 (ITIS 733381) .................................................................... 424B57. Key to Families of Ceratozetoidea in Alberta ................................................ 424Figure B57.3 ........................................................................................................................ 425Ceratozetidae Jacot, 1925 (ITIS 733525) ................................................................... 425Chamobatidae Thor, 1937 (ITIS 733526) ................................................................... 468Mycobatidae Grandjean, 1954 (RAM xxxxxxxx) ....................................................... 471Zetomimidae Shaldybina 1966 .................................................................................... 484Galumnoidea Jacot, 1925 (ITIS 733384) ........................................................................ 488Galumnidae Jacot, 1925 (ITIS 733550) ...................................................................... 488B69. Key to the genera of Galumnidae in Alberta .................................................. 489References ................................................................................................................................ 4975

Almanac of Alberta Oribatida 2.3 13 January 2013The 2012 Almanac of Alberta Oribatida(Acari: Acariformes: Sarcoptiformes: Oribatida)(NB – Descriptions & names in the Almanacs are not indended as new nomenclatorial acts.)6David Evans WalterSarah Latonas & Kaylee ByersThe Royal Alberta Museum12845 – 102 Avenue, Edmonton, AB, T5N 0M6, CanadaDavid.Walter@gov.ab.caVersion 2.3When this Almanac series began, 132 species of oribatid mites were known from Alberta. As ofthis writting, about 344 records of species of Oribatida are now known from Alberta of which191 are clearly new records gathered during our reseach (21 are unnamed species that have notyet been studied). Of those 191 species new to the Province, 32 are new records for Canada (9being new to North America as well). Additionally, 11 of these have been described as newspecies (Behan-Pelletier & Walter [2009]; Behan-Pelletier & Eamer [2010]; Behan-Pelletier[2011]; Lindo [2011]; Behan-Pelletier & Walter [2012]); Walter & Latonas (in press) and 50others may represent species new to science. The 286 species with body lengths over 0.3 mm arekeyed and discribed in this section of the Almanac. The others may be found in Walter & Latonas(2012).Herein, the keys have been corrected and updated to reflect new collections and new speciesdescriptions. In Oribatella, seven new species were described from Alberta in 2012 (Behan-Pelletier & Walter 2012), one previous misidentification corrected (Oribatella quadricornuta(Michael, 1880)? = Oribatella jacoti Behan-Pelletier, 2011), and one literature misspellingcorrected (Oribatella reticuloides Hammer, 1955 = Oribatella reticulatoides Hammer, 1955),and Oribatella canadensis Behan-Pelletier & Eamer, 2010 is newly reported from the Province.Cultroribula taigagica Bayartogtokh, 2007 is newly reported from North America. Protoribatesrobustior (Jacot, 1937) is newly reported from Canada (Walter & Latonas 2013). Additionallythe newly described Ceratoppia valerieae Lindo, 2011 has been added to the appropriate key.Many of the keys have been revised to reflect new information and numerous new illustrationshave been added. Since the text is searchable and the formatting has proven awkward, the Indexhas been removed from this addition.Version 2.0 (2.1-2.2 mostly minor corrections and updates, and referneces readded)In this fourth posting of the Almanac, I’m joined by two coauthors and additional corrections,new images, literature citations, and ecological information have been added on an ad hoc basis.We have been able to unravel the complex of Eueremaeus quadrilamellatus (Hammer), Eu.marshalli Behan-Pelletier, and Eu. masinasin Behan-Pelletier satisfactorily using morphologicalcharacters supported by DNA (cox1) analysis and electron microscopy. Generic definitions in theGymnodamaeidae have been revised (Walter 2009 Zootaxa 2206: 23-44) and the first of the threedozen apparent new species discovered in Alberta has been described: Unduloribates dianae

Almanac of Alberta Oribatida 2.3 13 January 2013Behan-Pelletier & Walter (2009, Zootaxa 2294: 47-61). Also, we have begun attempting tounravel the etymologies of the scientific names used for oribatid mites in response to a requestfor common names to make the mites ‘more accessible to managers’. This process is bound to befraught with difficulties, but should be fun. Anyone who finds our choice of a common name tooodious is invited to respond with one of their own.Version 1.3In this third posting of the Almanac, additional corrections, new images, literature citations, andecological information have been added on an ad hoc basis. New identifications and distributionsfrom the third ABMI season have been added and a few previous identifications have beenrevised. For example, based on new collections and SEMs I now think that I can distinguish themysterious Eueremaeus quadrilamellatus (Hammer, 1952) from the similar Eu. marshalli Behan-Pelletier. Hemileius sp. 1 DEW has been resolved in favour of Hemileius haydeni (Higgins &Woolley, 1975), a new record for Canada. On the other hand, I’ve decided that the few specimenson hand of Malaconothrus should all be treated as M. cf mollisetosus Hammer, 1952. The generaof Gymnodamaeidae have been revised (Walter 2009) and several questionable species recordsfrom the literature have been deleted. Additionally, thanks to the indefatigable Valerie Behan-Pelletier, the first of the new species of oribatid mites discovered in Alberta has been described:Unduloribates dianae Behan-Pelletier & Walter (2009).The species “Comments” heading has been changed to “Overview” and eventually, each willcontain a summary that it is hoped will make the mite more understandable to non-acarologists.At the request of the data managers, I am adding ITIS numbers where practical (ITIS seems to beusing the on-line Subías catalogue which diverges from this Almanac in a number of areas).Where IT IS numbers are inappropriate, special RAM numbers are being generated. The keys tothe Damaeidae have been refined and expanded. Work has continued on the Oripodoidea section:with the help of Roy Norton; the descriptions and affinities of Zygoribatula species have beenfurther resolved thanks to help from Elizabeth Franklin.The pdf, it has been divided into its two sections to facilitate downloads. Section I contains allof the primary ABMI species. Section II contains not target mite taxa including the smalleroribatids and other Albertan mite collections.Version 1.2In the second posting of the Almanac, a number of changes and corrections have been madebased on comments by Bruce Halliday (CSIRO, Australia). Literature listings are now inchronological order. Latitudes and longitudes are standardized to a decimal format (e.g. 58.87 =58º52’12” N; -119.26 = 119º15’36” W). Red type notations (my book-keeping on ABMI matters)have mostly been removed, since they are of no use to readers and probably confusing. Inaddition, Oribatulidae, Suctobelbidae (especially

Almanac of Alberta Oribatida 2.3 13 January 2013IntroductionWhat follows is a compendium of the oribatid mites (Arthropoda: Arachnida: Acari:Acariformes: Sarcoptiformes: Oribatida) known from the Province of Alberta in December 2012(about 350 species distributed across 28 superfamilies). The Almanac is meant to be a ‘livingdocument’ that will be updated on a regular basis, rather than a static publication. My primarygoal is to provide a record of Alberta’s oribatid mite fauna that is associated with distributionaland ecological information. A secondary goal is to provide identification tools (images, keys,diagnoses) to facilitate the identification of these mites by students and researchers. In this firstdraft, the keys are of the traditional dichotomous type, but eventually I intend to produce acomputer interactive key to the fauna. Anyone who wishes to contribute to this project, especiallyto correct errors, add missing information, or suggest ways to make this document more userfriendly, is encouraged to contact the author at the email above.We are especially grateful for the baseline data on the Oribatida of Alberta compiled byValerie Behan-Pelletier and Barbara Eamer (Acarology Unit, Research Branch, Agriculture andAgri-Food Canada, Ottawa) at the Diversity of Oribatida in Canada (DOC) website. The DOC(2004) was based on published records of Canadian Oribatida as of 2004 and listed about 132species of oribatid mites for Alberta. Some of these records are indefinite (i.e. an unidentifiedspecies in a known genus) and a few are based on misidentifications in the literature, but untilnow the DOC has been the definitive source of information on Alberta’s oribatid mite fauna. Theauthors of this website deserve the thanks of everyone in Canada who is interested in oribatidmites and the biodiversity of Canadian soils and the planned update is eagerly awaited.The new information on the Oribatida of Alberta in this Almanac comes from three primarysources. The first is the Alberta Biodiversity Monitoring Institute (ABMI) surveys from 2007-2011 which recovered about 23,000 target oribatid mites (i.e. adults >0.3 mm in length) fromhundreds of sites from around Alberta (see Map 1). New collections outside of the primaryABMI survey comprise the second source of information. This includes my benchmark site inLamont County, the Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444). This is an area of aspen forest, meadows, and ponds in the kettle & knob countryjust to the east of Elk Island National Park that I have sampled from May 2007 on. In addition, astime permits, I have analyzed specimens collected at the University of Alberta’s MeanookBiological Research Station (54.37N, 113.21W), the Finnamore Farm near Onoway, theEdmonton River Valley, Dinosaur Provincial Park, and other sites in Alberta. Finally, I haveincorporated reports from recently published papers and unpublished collections by Dr ValerieBehan-Pelletier (VBP) and Professor Roy A. Norton (RAN) of the State University of NewYork at Syracuse where relevant. The third source of new information is my ongoing revision ofAlberta’s oribatid mite fauna. I am attempting to check previous identifications, clarify indefinitedeterminations whenever possible, and produce a stable taxonomic framework. This is a dauntingtask, and I would be delighted to share it with any specialist who is interested. I would like totake this opportunity to thank those who have already provided advice, suggestions, andcorrections including VBP, RAN, Bruce Halliday, Zoë Lindo, Jeffery Norton, Gerd Weigmann,and Heinrich Schatz. Any misidentifications or misinformation in this Almanac are, of course,my responsibility.8

Almanac of Alberta Oribatida 2.3 13 January 2013AlbertaThe Province of Alberta, Canada, lies between 49-60 N latitude and stretches approximately1,223 km from the Northwest Territories south to the state of Montana in the USA and 660 kmfrom the Canadian province of Saskatchewan in the east (110th meridian) to British Columbia inthe west (~120th meridian). In area (~662,587 sq. km), Alberta is larger than any of the countriescurrently in the European Union, about twice the size of Finland and 20% larger than France.The ice sheets of the last stage (Wisconsin) of the most recent Ice Age reached theirmaximum extent around 18-21,000 years ago. Except for parts of the Cypress and PorcupineHills in the south and a few mountain peaks in the Rockies that may have survived as nunataks, awestern ice sheet spreading from the Rocky Mountains (the Cordilleran) and a north-eastern icesheet centered on the current Hudson’s Bay (the Laurentide) covered Alberta in 1000-2000 m ofice until some time after 18,000 years ago (Beaudoin et al. 1996; Beaudoin & Oetelaar 2003).These ice sheets would have destroyed any pre-existing soil fauna including the oribatid mites.As the climate warmed, a Western Corridor opened between the two ice sheets in a northwestdirection along the eastern foothills of the Rocky Mountains. The newly exposed land appears tohave been colonized by low, sparse vegetation (grasses, forbs, and shrubs) from southern refugia.Extensive inundation by proglacial lakes along the retreating margin of the Laurentide Ice Sheetand likely periodic catastrophic flooding also affected recolonization (Beaudoin & Oetelaar2003). By 12,000 years ago the Western Corridor was open to colonization by Berengianelements. The ice sheet continued to retreat to the north and northeast and by 9,000 years agoexcept for montane ice fields and the extreme northeast corner, Alberta was free of permanentice.Today the climate of Alberta is continental in the south to subarctic in the north. Averagetemperatures in January range from -8°C in the south to -24°C in the north, and in July from20°C in the south to 16°C in the north (Government of Alberta 2012). Various vegetation-basedclassifications exist, but six primary regions are usually recognized. (1) Boreal Forest (taiga)covers much of the northern two-thirds of the province and is often associated with muskeg, otherpeatlands and wetlands, and open fresh water ranging from small ponds to extensive lakes. (2)Grasslands (prairie and badlands) form the south-eastern corner and are associated with muchdrier general conditions and more circumscribed wetlands. (3) Aspen Parkland provides atransition between prairie and forest with mixtures of grassland, scrub, open forest, and wetlands.(4) The Rocky Mountains form the southwest border of Alberta with a maximum elevation of3,747 m and a complex of subalpine and alpine habitats. (5) The Foothills Natural Region formsa relatively warm and wet transition between the mountains and the Boreal Forest. (6) Finally, acomplex of sand plains and dunes, rock barrens, and peatlands covers the cold, dry CanadianShield Natural Region in the extreme northeast of the Province.Oribatid Mites: Acari, Acariformes, Sarcoptiformes, OribatidaIn the strict sense (excluding Astigmata), oribatid mites (also known as Cryptostigmata, Oribatei,moss mites, armoured mites, or beetle mites) comprise about 11,000 described species distributedacross about 1,300 genera and approximately 175 families depending on synonymies (more thanone name for given taxon) and the interpretations of various taxonomists (e.g. Subías 2004,Norton & Behan-Pelletier 2009). In this work I am following the taxonomy in the Catalogue ofthe Oribatida (Acari) of Continental United States and Canada (Marshall et al. 1987) and theDiversity of Oribatida in Canada website (Eamer & Behan-Pelletier 2004) as modified in the 3 rd9

Almanac of Alberta Oribatida 2.3 13 January 2013Edition of the Manual of Acarology (Krantz & Walter 2009) except the Cohort Astigmata(=Astigmatina, Acaridida), a group of highly derived oribatid mites that has traditionally beengiven its own suborder, is not included.Most described species of oribatid mites inhabit the organic layers of soils (includingsuspended soils in forest canopies) where they feed on microbes, detritus, and smaller, softbodiedinvertebrates such as nematodes. Their comminution of litter, regulation of fungal growthby grazing, and dispersal of microbial propagules are considered important contributions to thefunctioning of the decomposer subsystem in terrestrial ecosystems. Oribatids usually dominatethe abundance and diversity of the soil mesofauna in forest habitats and are prominent ingrasslands, deserts, freshwater habitats, and peatlands (Behan-Pelletier & Bisset 2004; Walter &Proctor 1999; Norton & Behan-Pelletier 2009). Oribatids have proven useful as bioindicators,especially of heavy metal pollution (see Eeva & Penttinen 2009 for a recent review).It seems likely that the oribatid fauna that existed in Alberta before the current ice age began(~60 mya) was exterminated by the ice sheets and the existing fauna has colonized since the icesheets began their retreat (~18,000 bp). Although few oribatid mites are phoretic on insects andmost are assumed to reach new areas primarily by ambulatory dispersal, they rapidly colonizenew disturbed habitats such as the soil exposed by retreating glaciers (Hågvar et al. 2009).Passive dispersal in the feathers of aquatic birds (Krivolutsky & Lebedeva 2004) and catastrophicreleases of meltwater from ice-margin and proglacial lakes (Bedouin & Oetelaar 2003) may havebeen important in the colonization of isolated wetlands. Many of the oribatid mites that thrive intoday’s Albertan climates may have quickly moved north from refugia to the south of the icesheets and later colonized to the southeast from refugia in Berengia. Others, however, may havebeen introduced by early human activities and we undoubtedly continue to introduce new species.but in Alberta only a few species approach 1.0 mm in length. Adult females are typically twicethe body mass of males and about 1.26x as long (Walter & Norton 1984), but many species oforibatid mites have done away with their males and reproduce parthenogenetically (thelytoky).which are covered in Part I below. Part II contains the smaller mites, mostly members of theBrachychthonioidea and Oppioidea, but also including any members of the other superfamilieswhere the adult mites do not exceed the 0.3 mm length test (and records for all other Acariknown from Alberta).Previous research on Alberta’s oribatid speciesPrevious work on Alberta’s oribatid species has been concentrated in the Rocky MountainNatural Region (e.g. the various papers by Mitchell and by Behan-Pelletier in the References),including the outlying Cypress Hills on the Saskatchewan border. Additionally, Lindo & Visser(2004) studied the oribatid fauna at the Ecosystem Management Emulating Natural Disturbance(EMEND) research site approximately 90 km northwest of Peace River (56.46, -118.22),Clapperton et al. (2002) reported on oribatid diversity at Rough Fescue Prairie sites in southernAlberta (the Porcupine Hills near Stavely), and Osler et al. (2008) reported on oribatids in croprotations near Lethbridge (49.48, 112.54). To date, the ABMI 2007-2008 surveys have beenprimarily in the Boreal Forest Natural Region and in some areas of the Aspen Parkland, Foothills,and Grassland Natural Regions (see Map 1), but will eventually cover all of Alberta.10

Almanac of Alberta Oribatida 2.3 13 January 2013Map 1. Overview of the ABMI sites sampled for Oribatida from 2007-2011.11

Almanac of Alberta Oribatida 2.3 13 January 201312Guide to Identification Codes & RecordsKeys, Image Use & Naming RulesAll new record claims are based on comparison to the published records listed on the Diversity ofOribatida in Canada (DOC) (2004) website produced by Dr. Valerie M. Behan-Pelletier andBarbara Eamer, Acarology Unit, Research Branch, Agriculture and Agri-Food Canada, CentralExperimental Farm, Ottawa, Ontario, Canada K1A 0C6:http://www.cbif.gc.ca/spp_pages/mites/phps/index_e.phpExcept in a few instances where new and better information is available, I am following thetaxonomy in Marshall, V.G., R.M. Reeves and R.A. Norton, 1987. Catalogue of the Oribatida(Acari) of continental United States and Canada. Mem. ent. Soc. Can. 139. 418pp. Website:http://earthworksresearch.com/oribatid-catalogue/Keys & Images:I have composed keys to the adult oribatid mites in Alberta over 0.3 mm in length by making freeuse of the literature, the teaching keys graciously provided by RAN & VBP, and the specimenson hand. In a few cases, when a recent monograph was unavailable, I have written keys to alarger fauna. These keys are tentative and need beta-testing. Any comments, suggestions, orcorrections would be greatly appreciated (David.Walter@gov.ab.ca). Please feel free to use themor adapt them to your own work.The RAM and I retain the rights to the images that I am producing. Please ask permission ifyou wish to use them.Latin binomials in bold in the keys represent species that have been reported from Alberta asdescribed in the Introduction. Published records listed on the DOC or subsequent papers thathave not been confirmed are in regular italic font in the species summary (some of these will bemisidentifications). [If a misidentification is confirmed by examination of the voucher specimen,then the entry will be in square brackets.] New records for the Province are preceded by a singleasterisk, new records for Canada by two asterisks, and putative new species (which by definitionwould be new to both Alberta and Canada) by three asterisks. For example:*Hypochthonius rufulus CL Koch, 1835 = new record for Alberta**Eremaeus walteri Behan-Pelletier, 1993 = new record for Canada***Protoribotritia sp. 1 DEW = putative new species[Gymnodamaeus bicostatus (C.L. Koch, 1835)] = a spurious recordThe following rules were applied when making identifications:1. Whenever possible, each specimen was assigned the name of a described species and theinitials of the person who made the determination along with the authority or authorities usedare listed in the ID Check section. If some doubt exists about the identification, then eitherthe qualifier cf (Latin confere = compare to) is inserted between the genus and species namesor s.l. (Latin sensu lato = broad sense) is added after the authority. Thus:Oribatella cf reticulatoides Hammer, 1955 = diverse genus, brief original descriptionTrhypochthonius tectorum (Berlese, 1896) s.l. = a probable species complex

Almanac of Alberta Oribatida 2.3 13 January 20132. When a specimen was recognizable as a distinct species but could not be assigned to a namedspecies either because it is undescribed or because identification is currently problematic (e.g.poor original description, no recent revisions, no keys, unavailability of types, etc.), theidentification is listed in the format:Genus species + alpha-numeric identifier + initials of identifierGenus sp. 1 DEW = species 1 of Genus as identified by David Evans WalterHydrozetes sp. E RAN = species E of Hydrozetes as determined by Roy A. Norton3. If the specimen could not be identified to the species-level because it is damaged or immature,or for any other reason, the identification is listed as “sp.” alone at the lowest level ofidentification. For example:Genus sp. = undetermined species of GenusGenus spp. = 2 or more unidentified species of GenusFamily sp. / spp. = undetermined genus/species in FamilyABMI code/ITIS# – 7 letter codes (1 st four genus letters + 1 st three species letters unless overlap)follow ABMP (2006) for species listed there or generated by author for new records. Codes aremodified for undescribed or problematic species identifications as SP1 etc. ITIS# refers to theTaxonomic Serial Number of the species in the Integrated Taxonomic Information System(http://www.itis.gov/).Institutional Abbreviations:CNC Canadian National Collection of Insects, Arachnids and Nematodes, Agriculture and Agri-Food Canada, Ottawa, Ontario, Canada.OSAL Acarology Laboratory, Department of Entomology, The Ohio State University, Museumof Biological Diversity, 1315 Kinnear Road, Columbus, Ohio 43212, USAPMAE.IZ (=RAM) Royal Alberta Museum, Invertebrate Zoology, 12845 – 102 Avenue,Edmonton, AB, T5N 0M6, CanadaRNC Collections of Roy A. Norton, Syracuse, New York, USA.USNM National Museum of Natural History, Washington, DC, USA.Format for genus recordsGenus Authority, YearDiagnostic characters: Telegraphic listing of useful diagnostic charactersAlso Known As: Other generic names under which the Alberta species might be found.Type species: The type species used to anchor the genus.13

Almanac of Alberta Oribatida 2.3 13 January 2013World species: A rough estimate of the number of species assigned to the genus, usually only thedescribed species, but undescribed species when known. Because generic limits vary withtaxonomists, and new species are constantly being described or transferred between genera,this number will always be a rough estimate.Comments: Notes of interest.Canadian species listed on DOC (bold = AB): The published records for Canada listed on theDiversity of Oribatida in Canada website as of 2004. Alberta records are bold font.Format for species recordsGenus species Authority, Year (Bold font indicates confirmed AB record, asterisks areexplained above)Also Known As: Other names by which this species has been reported (major names, not anexhaustive listing) including earlier versions of my list of Alberta Oribatida.ABMI code/Common name: 7 letter code (see above).Diagnostic characters: Telegraphic listing of useful diagnostic charactersOverview: Summary of main points of interest for the species.Barcodes: Sites with specimens that have had the mitochondrial cox1 gene (barcode)characterized by the Barcode of Life Data Systems (BOLD)ID Check: Initials of who (DEW = the author; VBP = Valerie Behan-Pelletier; RAN = Roy A.Norton; DKK = Derrick K. Kanashiro, ZL = Zoë Lindo) made or checked the speciesdetermination and the supporting literature.NB - All determinations of genus group names follow the keys written by Norton & Behan-Pelletier (unpublished) for use at the Ohio State University Summer Acarology Programunless these have been modified in Norton & Behan-Pelletier (2009) or other recentpublications. Additionally, Balogh & Balogh (2002) was consulted when needed.Similar taxa: A brief discussion of other species that may be confused with this species.ABMI Site Records: A list of the ABMI sites (including the off-grid sites of Diane Haughland)by year at which this species has been identified. Exact site location is not available, but toquote the ABMI website: “ABMI’s precise geographic survey coordinate is within 5.5 kmof the public geographic coordinate”. These public geographic coordinates are available asan Excel spreadsheet (137 kb) from the Survey Site Locations:http://www.abmi.ca/abmi/home/home.jspDOC (1/2008): [+other] Distribution: The previously known Canadian distribution of the speciesfrom the Diversity of Oribatida in Canada (DOC) websitehttp://www.cbif.gc.ca/spp_pages/mites/phps/f_e.phpFollowed by any additional distributional information available in square brackets [ ]Images: List of sites from which Scanning Electron Micrograph images (SEM), Lightmicroscope Micrographs (LM); or Line Drawings (LD) have been made.14

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: A summary of what is known of the habitat, feeding, and reproductive ecology.Classification as mesophilous or xerophilous follows Behan-Pelletier & Bissett (1994).Literature: Relevant literature (see References)Back to Table of ContentsMorphology of Oribatid MitesA Note on Terminology and NotationsLike most sciences, Acarology is awash is specialized terms. Unfortunately, much of this jargonhas been used idiosyncratically with various acarologists and their followers developing theirown terms or notations for the same structures. As in everyday language, the meaning of theseterms may change over time or a term for one structure may be co-opted to another. Many of theterms are derived from Latin or Greek or some imperfect knowledge of these classical languages.For example, the seta that emerges from the supposed anemosensory complex (trichobothrium)on the prodorsum of most oribatid mites is variously known as a bothridial sensillum, bothridialseta, pseudostigmatic organ, sensillus (an incorrect formation, but now standard in oribatology),sensillum, ss, or bo. Another example is ‘exuviae’ (as with ‘clothes’ this is both the singular andthe plural), the term for the cuticular remnant an arthropod casts during a moult, that may appearas exuvia (an incorrect singular formation), exuvium (another incorrect singular formation), orscalps (a term used for the notogastral exuvial remnants carried by some oribatid mites).Over recent decades there has been a trend towards standardization and simplification of theterms and notations used for oribatid mites. The works of François Grandjean (1882-1975), aformer professor of mineralogy who produced a massive, detailed, and more or less internallyconsistent body of work (http://www.annales.org/archives/x/grandjean.html), provide thestandard notations. So, for example, Grandjean developed signatures for each seta on the body ofearly derivative oribatid mites based on the segmental origin and position. He also devisedspecial designations for setae of unknown homology (e.g. the ‘unideficient’ designations forsome notogastral setae). As oribatologists develop hypotheses about the homology of theuncertain setae, these notations will be replaced by the standard notations. The modern equivalentof Latin, English, is being used to ‘simplify’ some of the Latin or Greek terms when they can bereplaced by less jargonistic words. Thus, terms like ‘area porosae’ become ‘porose areas’,‘epimera’ ‘epimeres’, and ‘sacculi’ ‘saccules’. Still, many terms cannot be simplified, the olderliterature contains the full jargonistic range, and, as I can personally attest, it is difficult to teachan old acarologist new terms. As much as possible, I am following the terminology used inNorton & Behan-Pelletier (2009). Additionally, the reader is directed to the illustrated andsearchable glossary of morphological terms by RAN that was included on the CD-ROM AnInteractive Key to the Oribatid Mites of Australia (Hunt et al. 1998).I am also developing a Glossary to cover my own lapses and to assist the end-user with theterms in the literature. Hopefully, with each revision or new edition of the Almanac the use ofspecialized terms and notations will become more internally consistent.15

Almanac of Alberta Oribatida 2.3 13 January 2013PlatesBelow are three plates showing some of the morphological characters used to identify oribatidmites. An important point to remember is that every seta (hair) on the body and legs of anoribatid mite has a special designation and, generally, also a name. For example, the interlamellarseta is in (note italic font is used for setal designations), the lamellar seta is le, and the rostral setais ro. The bothridial sensillus is designated ss in some literature, but bo (for bothridial seta) in theAlmanac. Setal designations can also refer to the body region in which they are inserted. Forexample, in, ro, le, and bo are prodorsal setae; c2 and la are notogastral setae.16

Almanac of Alberta Oribatida 2.3 13 January 201317

Almanac of Alberta Oribatida 2.3 13 January 201318

Almanac of Alberta Oribatida 2.3 13 January 2013Part IABMI Target Taxa (Oribatid mites over 0.3 mm in length)SUMMARYTo date, I have records for about 328 species of oribatid mites from Alberta. Of these 271 specieshave individuals with body lengths > 0.3 mm and about 57 species are beneath the ABMI limit.The key to oribatids over 0.3 mm in length starts below. Each group at the end of a couplet ishyperlinked to the next key. Most keys are only to the known Alberta oribatid mites; andtherefore, they will not necessarily work in areas with a richer fauna than Alberta or for taxa notyet known from the Province. Oribatid mites that do not exceed 0.3 mm in body length and allother Acari known from Alberta are listed in an abbreviated form in Part II.I. Key to the Major Groups of Oribatida in Alberta(adults >0.3 mm in length)1. Bases of chelicerae covered by a rostral tectum (rostrum) and at most only the tips of thechelicerae are visible dorsally (Fig. 1.1A); body and legs strongly sclerotized, often withsurface ornamentation, typically various shades of tan to brown or black in colour butsometimes yellowish to pinkish ................................................................................................. 2- Chelicerae exposed dorsally, rostral tectum present only as small, lobe-like naso (Fig. 1.1B);body weakly sclerotized, typically whitish to translucent with faintly sclerotized prodorsal,notogastral, genital, and anal plates ...................... Parhyposomatides, ParhypochthonioideaFigure 1.119

Almanac of Alberta Oribatida 2.3 13 January 20132. (1) Venter with soft cuticle in or around the coxal region. Either the body divided into two by aband of soft cuticle running between the epimeres of legs II-III (dichoid) or the prodorsumcovered by aspis that is separated from notogaster by soft cuticle and the leg bases aresurrounded by soft cuticle and capable of being retracted into body (ptychoid) ...................... 3- Body holoid (Fig. 1.2.1-2), no soft cuticle in the area of the leg bases (epimeres) ..................... 7Figure 1.2.120Figure 1.2.23. (2) Ptychoid, i.e. prodorsum covered by aspis that is separated from notogaster by soft cuticleand leg bases surrounded by soft cuticle and capable of being retracted into body .................. 4- Dichoid, i.e. body divided into two by a band of soft cuticle between legs II-III and theprodorsum and notogaster ......................................................................................................... 5

Almanac of Alberta Oribatida 2.3 13 January 20134. (3) Plates covering genital and anal regions broad, length similar to width, and relatively flat(Fig. 1.4A) .......................................................................... Mixonomatides, Phthiracaroidea- Plates covering genital and anal regions narrow, much longer than wide (Fig. 1.4B), medianmargins projecting, knife-like (Fig.1.2.2) ...................... Mixonomatides, EuphthiracaroideaFigure 1.4Dichoid Body Forms5. (3) Notogaster entire, without transverse furrows (scissures); opisthonotal gland openingspresent; sensillus (bo) various, including highly regressed, but rarely pectinate (Fig. 1.5A) ... 6- Notogaster divided by one or more transverse scissures (Fig. 1.5B-C); body yellowish topinkish brown in colour; opisthonotal gland openings absent; bo usually pectinate or clubbed........................................................................................................................ EnarthronotidesFigure 1.521

Almanac of Alberta Oribatida 2.3 13 January 20136 (5) Notogaster narrow, subcylindrical (Fig. 1.6.1A, 1.6.2); ventral plate present and dividedbetween genital and anal shields (Fig. 1.6.2); 2 pairs of exobothridial setae (setae are oftensmall and difficlut to see); monodactyl .......................... Mixonomatides, Epilohmannioidea- Body more or less flattened and rectangular to oval in outline (Fig. 1.6.1B,C); ventral plateabsent; 0-1 pair of exobothridial setae; 1-3 claws .......................................................................Desmonomatides, Nothrina (pars), Crotonioidea (Malaconothridae, Trhypochthoniidae)Figure 1.6.1Figure 1.6.222

Almanac of Alberta Oribatida 2.3 13 January 2013Holoid Body Forms7. (2) Genital and anal shields usually ovoid to trapezoidal and widely separate (Fig. 1.7A)(rarely adjacent or openings coalesced, Fig. 1.7B), and surrounded by a continuous ventralshield or separated by broad ventral band that is continous with notogaster (Figs 1.8.1-2) ..... 8- Genital and anal shields surrounded by soft cuticle and flanked by a pair of aggential-adanalsclerites (rarely reduced); genital and anal shields separated only by a small, discrete preanalplate; anal shield typically elongate, several times longer than wide .............................................................................. Desmonomatides, Nothrina, Crotonioidea (Nothridae, Camisiidae)Figure 1.78. (7) Notogaster with a discrete cap-like shield (variously ornamented, with or withooutpteromorphs) fused to prodorsum and separated from ventral plate by a circumgastric furrow(Fig. 1.8.1A-B) ..................................................................... Desmonomatides, Brachypylina- Notogaster subcylindrical, separate from prodorsum, but continuous ventrally between genitaland anal regions, densely foveolate (Fig. 1.8.2); circumgastric furrow absent, but a pair ofsemi-lunar scissures partially define aggenital region latterally (Figs 1.8.1C; 1.8.2) .............................................................. Desmonomatides, Nothrina, Crotonioidea, Nanhermanniidae23

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 1.8.1Figure 1.8.224

Almanac of Alberta Oribatida 2.3 13 January 2013Subclass Acari (ITIS 733321)Superorder Acariformes (ITIS 690740)Order Sarcoptiformes (ITIS 83538)Suborder Oribatida (ITIS 733326)Common names: oribatid mites; moss mites; armoured mites; cryptostigmatid mites; beetle mitesSupercohort Enarthronotides Grandjean, 1947Common name: Scissure-mitesComments: This supercohort (aka Enarthronota Grandjean, 1947 (ITIS 733330)) is distinctivebecause of the 1-3 transverse bands of soft cuticle (scissures) that cross divide thenotogaster into two or more regions. Fossils are known from the Devonian and, along withthe other aglandulate cohort Palaeosomatides (see Part II for the one Albertarepresentative), represent the most primitive living lineages of oribatid mites. Althoughonly 4 species over 0.3 mm in length are known to occur in Alberta, nearly 20 smallerspecies have been reported (see Part II).2. Key to the genera of Enarthronotides in Alberta (>0.3 mm)1. Notogaster not flattened in either axis, divided into 3 sclerites by 2 transverse scissures (Fig.2.1A) and with discrete lateral plates; prodorsum with lateral eye and associated seta (ex)anterolateral of bothridium (see Fig. 2.2 below) ...... Brachychthoniidae, Eobrachychthonius- Notogaster dorso-ventrally flattened to somewhat diamond-shaped with a single scissure or aposterior scissure and a medially incomplete anterior line (Fig. 2.1B-C), without discretelateral plates; prodorsum without lateral eye ............................................................................. 2Figure 2.125

Almanac of Alberta Oribatida 2.3 13 January 20132. Notogaster broad, subrectangular, more or less dorso-ventrally flattened, divided by a singletransverse band of soft cuticle (scissure); sensillus pectinate (Fig. 2.1B) ............................................................................................................................... Hypochthoniidae, Hypochthonius- Notogaster more or less diamond-shaped, somewhat laterally compressed, appearing to haveone complete and one incomplete transverse scissures (anterior band interrupted betweensetae d1) (Fig. 2.1C); sensillus pectinate or with barbed club ................................................................................................................................................... Eniochthoniidae, EniochthoniusBrachychthonioideaBrachychthoniidae Thor, 1934Comments: Species of Brachychthoniidae are very common and often abundant in Alberta soils,but most species are much less than 0.3 mm in length. There is one exception.Eobrachychthonius Jacot, 1936Diagnostic characters: Enarthronotides with 2 simple scissures dividing the notogaster intothree plates (Anterior, Median, Pygidial), a more or less fusiform sensillus (bo), 2 pairs ofpleural plates (PL1, PL2), and 4 pairs of suprapleural plates (SpC, SpD, SpE, SpF), SpCbears seta c3; aggenital sclerite entire and bearing ag or divided with ag on small sclerite.Also Known As: Brachychythonius Berlese, 1910Type species: Brachychthonius latior Berlese, 1910 (=Eobrachychthonius sexnotatus Jacot,1936)World species: 6 speciesEtymology – Eo (dawn) + brachy (short) + chthonius (of the soil)Comments: Among the high diversity of Brachychthoniidae found in Alberta soils, this is theonly genus with species that exceed 0.3 mm in length. Information on the smallerspecies may be found in Part II of the Almanac.Canadian species listed on DOC (bold = AB): Eobrachychthonius borealis Forsslund, 1942 YTNU NT; Eobrachychthonius latior (Berlese, 1910) YT NU NT MB ON QC NF;Eobrachychthonius oudemansi van der Hammen, 1952 NU NT; Eobrachychthonius sp.ON*Eobrachychthonius latior (Berlese, 1910) (ITIS 735041)Also Known As: Eobrachychthonius sexnotatus Jacot, 1936, Brachychthonius grandis Sellnick,1944ABMI code/Common name: EOBRLAT; Common Name: Orange Scissured OribatidDiagnostic characters: aggenital sclerite entire and bearing a seta; large brachychthoniids, 270-370; sclerites orange in adults, lilac in immatures.Overview: This is the only brachychthoniid mite to meet the ABMI 0.3 mm length criterion.26

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).Similar taxa: Two smaller species with a divided aggenital sclerite (ag on small platelet) havebeen reported from Canada: Eobrachychthonius borealis Forsslund, 1942 (notogastral setaeacicular, body 200-215 in length) is known from YT, NU, NT and Eobrachychthoniusoudemansi van der Hammen, 1952 (notogastral setae flattened, body 250-270 in length)from NU, NT.ABMI Site Records: 2007: none. 2008: none. 2009: 530 residuals. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: YT, NU, NT, MB, ON, QC, NF; [414, 601SE in residuals;Moose Pasture Research Site 8 km W Chipman, AB; Holarctic].Images: SEM (414NE Res.)Ecology: Gravid females carry a single egg.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann (2006);Figure 2.227

Almanac of Alberta Oribatida 2.3 13 January 2013Hypochthonioidea Berlese, 1910 (ITIS 733337)(Return to Key to Major Groups)Hypochthoniidae Berlese, 1910 (ITIS 733392)Comments: This is one of the three families of the Cohort Enarthronotides with species over 0.3mm in length that is known to occur in Alberta. Species of Hypochthonius are the largest ofthese mites and the only ones that are dorso-ventrally flattened and have a single transversenotogastral furrow.Back to Table of ContentsHypochthonius CL Koch, 1835 (ITIS 733583)Diagnostic characters: relatively large, dorso-ventrally flattened enarthronotes with a singledorsal notogastral scissure (Type S); setal row e reduced to alveoli; sensillus pectinate; c2-3shorter and finer than other notogastral setae; anarthric subcapitulum; pregenital organpresent, subtriangular, with bilobed terminus; monodactyl.Also Known As: none.Type species: Hypochthonius rufulus C.L. Koch, 1835World species: 4 identifiable species including the cosmopolitan H. rufulus, Holarctic H. luteusOudemans, 1917; H. elegans Hammer, 1979 from Java; and H. montanus Fujikawa,2003 from Japan.Etymology – Hypo (beneath) + chthonius (the soil)Comments: The genus is widely distributed in Alberta, but herein are the first reports of itsoccurrence. A related genus with divided genital plates, Eohypochthonius, is not knownfrom Canada.Canadian species listed on DOC (bold = AB): Hypochthonius rufulus C.L. Koch, 1835;Hypochthonius sp.3. Key to adult Hypochthonius known from North America1. Dorsal setae relatively short (Fig. 3.1A; 3.2): in much shorter than sensillus, c1 not reachinginsertion of d1, d1 just reaching scissure; ventral length 580-650 ................................................................................................................................. Hypochthonius luteus Oudemans, 1917- Most dorsal setae relatively long (Fig. 3.1B; 3.3): in approaching length of sensillus, c1 passinginsertion of d1, d1 extending well past scissure; ventral length 650-800 ........................................................................................................................ Hypochthonius rufulus CL Koch, 183528

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 3.1** Hypochthonius luteus Oudemans, 1917 (ITIS 735010)Also Known As:ABMI code/Common name: HYPOLUT; Common Name: Yellowish Scissure-miteDiagnostic characters: Adult 580-650 long; dorso-ventrally flattened with a single scissure;yellow brown to pink, cuticle micropunctate and with acinose patches; interlamellar setamuch shorter than sensillus; notogastral setae relatively short, c1 not reaching insertion ofd1, d1 just reaching alveolus of e1 (in scissure), f1 not reaching insertion of h1. Prodorsumabout 3/4 th width of hysterosoma; bo (140-160) pectinate with 14-17 long spines (opposedto short, irregular barbs); ex (37) fine, acicular; in (80-83) with sparse, coarse barbs, le (60)widely spaced, ro (47) smooth, tapering, set back from tip of narrow, scalloped rostral edge.Notogaster subrectangular, dorsal notogastral setae thick, blunt with barbed margin or fine,acicular (c2-3): c1 (75, distance c1-d1 88); c2 (33); c3 (38); d1 (67-68, distance d1-e1 62-65) just reaching scissure; e1-2 reduced to stubs on intercalary sclerite within scissure; f1(70), f2 (73), h1 (90), h2 (77), h3 (78); p1 (53); p2-3 (33-43), ventral, tapering, barbed; 3pairs tapering, sparsely barbed anal setae; genital shields with 10 pairs of acicular setae: 6(~10) medians +4 (~30) laterals.Overview: Adults of this Holarctic species are medium sized (0.580-0.650 mm long), flattenedmites with the body divided into two subequal units by a transverse suture. They are usuallymore a pinkish brown colour than the yellow suggested by the species name. This is thefirst Canadian record of this species.Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).29

Almanac of Alberta Oribatida 2.3 13 January 2013Fig. 3.2Similar taxa: Hypochthonius rufulus Oudemans, 1917 is larger (650-800) and has longer dorsalsetae. Eniochthonius species are much smaller, are not dorso-ventrally flattened, appear tohave two notogastral scissures (the anterior one is an incomplete furrow), and are stronglybirefringent.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [Edmonton River Valley (53.32N, 113.31W), MoosePasture Research Site 8 km W Chipman, AB, Holarctic]Images: SEM (ERV);Ecology: Parthenogenetic (thelytokous); the only gravid female in the collection carries one largeegg. Gut contents include granular material and fungal spores.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann (2006).*Hypochthonius rufulus CL Koch, 1835 (ITIS 735012)Also Known As: Hypochthonius pallidulus CL Koch, 1835; Leiosoma ovata sensu Nicolet, 1855.ABMI code/Common name: HYPORUF; Common Name: Reddish Scissure-miteDiagnostic characters: 650-800 long; dorso-ventrally flattened with a single scissure; yellowbrown to pink, cuticle micropunctate and with acinose patches; prodorsum about 3/4 th widthof hysterosoma; interlamellar seta approaching length of sensillus; notogastral setae30

Almanac of Alberta Oribatida 2.3 13 January 201331relatively long, c1 passing insertion of d1, d1 passing alveolus of e1 and scissure, f1 passinginsertion of h1. Prodorsum: bo (180) pectinate with 7-8 long spines; other setae taperingwith faint serrations: in (135-140), le (105-110) widely spaced, ro (40) set back from tip ofnarrow, scalloped rostral edge; notogaster subrectangular, setae (except c2) mostly long,tapering, with faint serrations: c1 (135-140), c2 (30-35) fine, d1 (125-130) extending wellpast scissure; e-series reduced to stubs on intercalary sclerite within scissure; posterior setaelonger (160-170) and with faint serrations.Overview: Adults of this Holarctic species are largish (0.650-0.800 mm long), flattened miteswith the body divided into two subequal units by a transverse suture. They are usuallypinkish brown in colour, but may be yellowish. This is a widely distributed parthenogeneticspecies that is common in the Edmonton region and (based on ABMI collections) is presentthroughout much of Alberta, but has not previously been reported from the Province.Several subspecies based on minor variations have been proposed (see Marshall et al.1987), but these are not recognized here.Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).Similar taxa: Hypochthonius luteus Oudemans, 1917 is smaller (580-650) and has shorter dorsalsetae. Eniochthonius species are much smaller, are not dorso-ventrally flattened, appear tohave two notogastral scissures (the anterior one is an incomplete furrow), and are stronglybirefringent.ABMI Site Records: 2007: 248, 388, 484, 599, 601, 792, 1252, BOG6, BOG7, UPL8. 2008:720, 1009, FM06, SL10. 2009: 1, 34, 498, 498, 499, 528, 528, 528, 728, 882. 2010: 980,1142, 1175, 1203, 1209, ALPAC-10, ALPAC-12, OG-910-1, OG-1352-1. 2011: 91, 391,604, 608, 963, 970, 984, 1105, 1238, A637-2, A757-1.DOC (1/2008): [+other] Distribution: YT, NU, NT, MB, ON, QC, NF, [Edmonton River Valley(53.32N, 113.31W), Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444), Holarctic]Images: SEM (MP); LM; LDEcology: This Holarctic parthenogen (thelytokous) is known from peatlands, bogs, and forestsoil. Smrž (1989) considered H. rufulus to feed principally on bacteria and fine organismmatter; however, fungal material is commonly found in gut contents (see Schneider 2005),and this mite may also be a facultative predator. In Alberta, gut boli on hand have fungalhyphae or dark organic matter typically present, but also setose arthropod cuticle (site#1254, BOG6) and a possible mass of nematodes (UPL6). Riha (1951) reported H. rufulusas a scavenger on dead springtails and worms and Siepel & de Ruiter-Dijkman (1993) andSchneider et al. (2004) considered it an omnivore. Schneider (2005) placed H. rufulus in thecarnivore-scavenger-omnivore feeding guild (i.e. feeding on living and dead animals and onfungi). Parthenogenetic (thelytokous): only females of H. rufulus are known and gravidfemales carry 1-2 large eggs. Subfossil specimens (3250 BP) have been reported from peatin NE Russia (Krivolutsky & Sidorchuk 2003). Specimens have been found in the feathersof birds in Russia, a possible means of long distance dispersal (see Krivolutsky & Lebedeva2004). This mite also was reported as occurring in the hair of small mammals in Slovakia, apossible means of local dispersal, by Miko & Stanko (1991).

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Tarman (1968); Luxton (1972); Gilyarov & Krivolutsky (1975); Marshall et al.(1987); Smrz (1989); Behan-Pelletier & Bissett (1994); Weigmann (2006).Fig. 3.3Eniochthoniidae Grandjean, 1947 (ITIS 733393)Comments: These are small, yellowish and somewhat laterally compressed mites associated withwet moss that appear to be on their way towards the evolution of ptychoidy.Eniochthonius Grandjean, 1933 (UBIO 94634384)Diagnostic characters: Small enarthronotes with one incomplete anterior notogastral band (moreeasily seen before slide-mounting) and a complete notogastral scissure; setae of row epresent; body yellowish, notogaster bulb-like, more or less laterally compressed. Unlessstrongly cleared, slide-mounted specimens have a ‘salt and pepper’ cuticle from mineralinclusions.Also Known As: Hypochthoniella Berlese, 1910; Arthrochthonius Ewing, 1917Type species: Hypochthonius minutissimus Berlese, 1904World species: 6 species including three from North America: Eniochthonius minutissimus(Berlese, 1903), E. crosbyi (Ewing, 1909), E. mahunkai Norton & Behan-Pelletier, 2007Etymology – Enioch (?) + chthonius (of the soil)Comments: The three known North American species have been identifiable only since Norton &Behan-Pelletier (2007).32

Almanac of Alberta Oribatida 2.3 13 January 2013Canadian species listed on DOC (bold = AB): Eniochthonius minutissimus (Berlese, 1903);Eniochthonius sp.4. Key to adult Eniochthonius in North America1. Sensillus pectinate (Fig. 4.1B, C); small mites generally less ....................... 2- Sensillus spiculate, long pectines absent (Fig. 4.1A); larger mites 380- ................................................................................................... Eniochthonius crosbyi (Ewing, 1909)2. Sensillus with 9 or more long tines (Fig. 4.1B); 2 pairs of aggenital plates; 355-380 long ..................................................................................... Eniochthonius minutissimus (Berlese, 1903)- Sensillus with 2-5 long tines (Fig. 4.1C); 3 pairs of aggenital plates; 309-343 long .........................................................................Eniochthonius mahunkai Norton & Behan-Pelletier, 2007A B CFig. 4.1*Eniochthonius crosbyi (Ewing, 1909) (RAM 99000132)Also Known As: Eniochthonius borealis Jacot, 1939; Hypochthoniella borealis (Jacot, 1939).ABMI code/Common name: ENIOCRO; Common Name: Crosby’s Scissure-miteDiagnostic characters: 380-450 long; bo with sessile spicules; famulus with small knob andshort tine; 2 pairs of aggenital platesOverview: Species of Eniochthonius are small, yellow mites with two transverse bands runningacross their backs. This is the largest of the three species in this genus found in Alberta.Adults are yellow, with a diamond shaped body and 0.385-0.450 mm long. Albertacollections are larger than in eastern North America, but otherwise consistent.Barcodes: 412 (0), 444 (0 x 3)ID Check: Determination by DEW based on Norton & Behan-Pelletier (2007).Similar taxa: E. mahunkai (much smaller, bo with 4 long tines, 3 pairs aggenital plates; famuluswith large knob and short tine); E. minutissimus (smaller, bo with 9 or more tines; 2 pairs ofaggenital plates; famulus with small knob and long tine)33

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: 2007: 248, 277, 330, 331, 358, 360, 388, 389, 390, 484, 512, 515, 543, 544,545, 576, 601, 631, 633, 663, 665, 791, 792, 1070, BOG5, BOG7. 2008: 412, 444, 472,688, 690, 751, 976, BOG2, SL13. 2009: 13, 14, 498, 506, 508, 530, 537, 560, 570, 698,699, 759. 2010: 1171, 1207, 1237, 323, 324, 325, 352, 353, 354. 384, 910, OG-972-1, OG-1171-1. 2011: 93, 361, 391, 608, 968, 1002, 1003, 1105, 1106, 1138, 1238, A702.OS.DOC (1/2008): [+other] Distribution: ON, QC, NB, NS, NF, [NH, NY, MI, MO, NC]Images: SEM (414); LMEcology: These mites are found in forest litter, wood, moss, bracket fungi, and muskeg grasses.Gut boli mostly with hyphae and spores as well as some coarse organic matter and aseptatetubular material. Parthenogenetic (thelytokous), gravid females carry a single large egg.Cuticle with deposited salts (whewellite – monohydrous calcium oxalate) that cause a ‘saltand pepper’ appearance under a light microscope.Literature: Marshall et al. (1987); Norton & Behan-Pelletier (2007).Fig. 4.234

Almanac of Alberta Oribatida 2.3 13 January 2013*Eniochthonius mahunkai Norton & Behan-Pelletier, 2007 (RAM 99000062)Also Known As: none.ABMI code/Common name: ENIOMAH; Common name: Mahunka’s Scissure-miteDiagnostic characters: 309-343 long; bo with 2-5 (commonly 4) long tines; 3 pairs aggenitalplates; famulus with large knob and short tineOverview: Species of Eniochthonius are small, yellow mites with two transverse bands runningacross their backs. This is the smallest of the three species in this genus found in Albertaand is typically found in peatlands. Adults are yellow with a somewhat diamond-shapedbody and are 0.309-0.343 mm long.Barcodes:ID Check: Determination by DEW based on Norton & Behan-Pelletier (2007).Similar taxa: E. minutissimus (smaller, bo with 9 or more tines; 2 pairs of aggenital plates;famulus with small knob and long tine); E. crosbyi (larger, bo with sessile spicules; famuluswith small knob and short tine; 2 pairs of aggenital plates)ABMI Site Records: 2007: 390, 631, 633. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: NB, NS, NY, [WI]Images: LMEcology: These mites have been found in peatlands (bogs, fens), especially in sphagnum mosshummocks. The gut boli consist mostly of hyphae. Parthenogenetic (thelytokous), gravidfemales usually have a single large egg, although a female from 663NW has a partiallyformed second egg. Cuticle with deposited salts (whewellite – monohydrous calciumoxalate) that cause a ‘salt and pepper’ appearance under a light microscope.Literature: Norton & Behan-Pelletier (2007).*Eniochthonius minutissimus (Berlese, 1903) (RAM 99000133)Also Known As: Hypochthoniella pallidula (CL Koch) in Hammer (1952). An often confusedmite with a confusing nomenclatorial history: see Norton & Behan-Pelletier (2008).ABMI code/Common name: ENIOMIN; Common name: Minute Scissure-miteDiagnostic characters: 355-380 long; bo with 9 or more tines; 2 pairs of aggenital plates;famulus with small knob and long tine.Overview: Species of Eniochthonius are small, yellow mites with two transverse bands runningacross their backs. This is species is intermediate in size compared to the other two speciesin this genus found in Alberta. Adults are yellow, with a somewhat diamond-shaped bodyand are 0.360-0.380 mm long.Barcodes:ID Check: Determination by DEW based on Norton & Behan-Pelletier (2007).35

Almanac of Alberta Oribatida 2.3 13 January 2013Similar taxa: E. mahunkai (much smaller, bo with 4 long tines, 3 pairs aggenital plates; famuluswith large knob and short tine); E. crosbyi (larger, bo with sessile spicules; famulus withsmall knob and short tine; 2 pairs of aggenital plates)ABMI Site Records: 2007: 277, 388 (on slide with E. crosbyi), 514, 545, 599, 631 (on slide withE. crosbyi), 632, 664, 664, 664, 792, UPL4. 2008: 343, 690, 932, 975. 2009: none. 2010:ALPAC-5, ALPAC-12, OG-910-1, OG-1208-1, OG-1325-1. 2011: 608, OG-1275-1.DOC (1/2008): [+other] Distribution: NU, NT, MB, ON, QC, NF, NS; [Moose Pasture ResearchSite 8 km W Chipman, AB (53.656667, -112.759444), Narrow Lake (54°39’N, 113°37W),343 Residuals, Holarctic]Images: SEM (MP, 388); LMEcology: These mites are found in forest litter, wood, moss, bracket fungi, and muskeg grasses.Lindo (2004-2007) reported the species from western red cedar canopy in the WalbranValley of Vancouver Island. Gut boli mostly contain hyphae and spores, and some coarseorganic matter. Schneider (2005) place E. minutissimus in the secondary decomposerfeeding guild (i.e. feeding primarily on fungi and secondarily on decomposing plantmatter). Parthenogenetic (thelytokous), gravid females carry a single large egg. Cuticle withdeposited salts (whewellite – monohydrous calcium oxalate) that cause a ‘salt and pepper’appearance under a light microscope. Specimens have been found in the feathers of birds inRussia, a possible means of long distance dispersal (see Krivolutsky & Lebedeva 2004).Literature: Marshall et al. (1987); Norton & Behan-Pelletier (2007).Back to Table of Contents36

Almanac of Alberta Oribatida 2.3 13 January 2013Common names:Supercohort ParhyposomatidesComments: These are perhaps the most primitive of glandulate oribatid mites. At least twospecies are present in Alberta, but rarely recorded because they are atypical oribatid mites.Adults have pale dichoid bodies with little obvious sclerotization and are easily confusedwith immatures.(Return to Key to Major Groups)5. Key to Genera of Parhypochthonioidea in Alberta1. Sensillus (bo) pectinate (Fig. 5.1B); opisthonotal glands with large, spout-like openings (Fig.5.1A) and emergent seta (f2) ............................... Parhypochthonius aphidinus Berlese, 1904- Sensillus (bo) ending in a spinose, fusiform club; opisthonotal glands sessile, without spoutlikeopenings (Fig. 5.1C) ............................................................ Gehypochthonius Jacot, 193637Figure 5.1Parhypochthonioidea Grandjean, 1932Parhypochthoniidae Grandjean, 1932Parhypochthonius Berlese, 1904Diagnostic characters: Poorly sclerotized, pale coloured mites with opisthosomal glandopenings raised, nozzle-like with emergent seta f2; peranal plates present, nested betweenanal plates, and bearing a single setal pair in tritonymphs and adults; epimere II with 1 pairof setae; genae with 3 pairs of setae (a, m1, m2).Also Known As: none, but the genus name is often misspelled.Type species: Parhypochthonius aphidinus Berlese, 1904

Almanac of Alberta Oribatida 2.3 13 January 2013World species: 3 valid species including the cosmopolitan P. aphidinus.Comments: A number of species names have been proposed for immature higher oribatids thatwere confused with Parhypochthonius adults.Canadian species listed on DOC (bold = AB): Parhypochthonius aphidinus Berlese, 1904;Parhypochthonius aphidinus octofilamentis Jacot, 1938*Parhypochthonius aphidinus Berlese, 1904Also Known As: none.ABMI code/Common name: PARHAPHDiagnostic characters: bo pectinate; opisthonotal glands spout-likeOverview: This widely distributed parthenogenetic species is currently known in Alberta onlyfrom the Finnamore Farm near Onoway (53.77N, 114.06W).Barcodes:ID Check: Determination by DEW (Walter, in prep.).Similar taxa: Parhypochthonius aphidinus octofilamentis Jacot, 1938 reported from ON.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: ON, QC; [Onoway (53.77N, 114.6W); Gopher Hill(53°42'0"N, 112°45'17")];Images: LMEcology: Only females are known and this mite is undoubtedly parthenogenetic. The Albertacollections are from farmland/pasture.Literature: Marshall et al. (1987); Walter (in prep.)Gehypochthoniidae Strenzke, 1963Gehypochthonius Jacot, 1936Diagnostic characters: Poorly sclerotized, pale coloured mites with subcylindrical bodies;opisthosomal gland opening sessile, seta f2 absent; peranal plates absent; epimere II with 2pairs of setae; genae with 2 pairs of setae (a, m)Also Known As: none.Type species: Gehypochthonius rhadamanthus Jacot, 1936World species: 8 species.Comments:Canadian species listed on DOC (bold = AB): Gehypochthonius rhadamanthus Jacot, 193638

Almanac of Alberta Oribatida 2.3 13 January 20136. Key to adult Gehypochthonius in Canada1. Genital plates with 5 or fewer pairs of setae, one pair of aggenital setae ........................................................................................................................ Gehypochthonius gracilis Pankov, 2002- Genital plates with 9 setae (6 medial +3 lateral), 2 pairs of aggenital setae ................................................................................................................Gehypochthonius rhadamanthus Jacot, 1936**Gehypochthonius gracilis Pankov, 2002Also Known As: none.ABMI code/Common name: GEHYGRADiagnostic characters: bo with spinose club; 5 pairs genital setae.Overview: in alcohol: 632 (4); widely distributed parthenogenetic speciesBarcodes:ID Check: Determination by DEW based on Pankov (2002); Pankov by light microscope image(2008).Similar taxa: E. mahunkai (much smaller, bo with 4 long tines, 3 pairs aggenital plates; famuluswith large knob and short tine); E. crosbyi (larger, bo with sessile spicules; famulus withsmall knob and short tine; 2 pairs of aggenital plates)ABMI Site Records: 2007: none. 2008: 1635 SE (residuals). 2009: none. 2010: none. 2011:none.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444)]; Gehypochthonius rhadamanthus Jacot, 1936 is reported fromYT, ON, QC [BC]Images: LMEcology:Literature: Pankov (2002); Walter (in prep.)Back to Table of Contents39

Almanac of Alberta Oribatida 2.3 13 January 2013Supercohort Mixonomatides (RAM 99000134)Comments: In Alberta, the Mixonomatides (aka Mixonomata Grandjean, 1969 (ITIS 733331)) isrepresented by one record of an Epilohmannia species from near Lethbridge (49.48 N,112.54’ W) (Osler et al. 2008) and two superfamilies of box mites, i.e. mites with the abilityto withdrawal their legs into their body and fold their aspis over the opening and thusresemble a closed box, a closed pocket knife, or a plant seed. The technical term for thismorphological-behavioural defence is ptychoidy. The three superfamilies ofMixonomatides are distinguished in the Key to Major Groups. Below, the species in eachsuperfamily of box mites, Euphthiracaroidea and Phthiracaroidea, are keyed.Euphthiracaroidea Jacot, 1930 (ITIS 733348)(Return to Key to Major Groups)Comments: Euphthiracaroid mites generally have their apparent anal and genital plates (actuallyusually fused ano-adanal and genito-aggenital plates) meeting at an angle and thusappearing knife-like and complementing the metaphorical pocket-knife image.Phthiracaroid mites have the plates in this region broad and more or less flattened in a more‘box-like’ manner. In addition to taxa known from Alberta, the key below includes thegenus Maerkelotritia Hammer, 1967 because it seems likely that M. alaskensis Hammer,1967 and other species known from BC may eventually be discovered here.7. Key to families & genera of Euphthiracaroidea potentially in Alberta1. Anal plates discrete, not fused to adanal region (Fig. 7.1A); genital plates also free or fused toaggenital region; notogastral integument usually smooth, uniformly shiny in reflected light....................................................................................................................... Oribotritiidae (2)- Genital region covered by a single genital-aggenital plate (Fig. 7.1B); anal region with a singleanal-adanal plate; hinge-like interlocking triangles on anterior and sometimes posterior ofanal region on midline; notogaster often pitted or sculptured (at least anteriorly), usually notshiny......................................................................................................... Euphthiracaridae (4)40

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 7.12. Seta le not laterally displaced; distance between setae in distinctly greatest of the 3 dorsalpairs; genu IV with one solenidion ............................................................................................ 3- Seta le displaced laterally, inserted near margin of aspis; distance between setae le ~ to thatbetween setae in or greater; genu IV without solenidion ............... Mesotritia Forsslund, 19633. Notogaster usually

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 7.45. With 8 or 9 pairs of genital setae, of which 3 are usually near anteromedial corner of plate; setain barbed, usually longer than sensillus; ex small, but usually present; trochanters III & IVwith 2 setae; tarsi with 1, 2 or 3 claws ........................................................................................................................................... Rhysotritia Märkel & Meyer, 1959 (=Acrotritia Jacot, 1923)- With 4 or 5 pairs of genital setae, none concentrated near anteromedial corner; seta in thin,smooth, much shorter than sensillus; ex usually only alveolus; trochanters III & IV with 1seta; monodactyl ..................................................................................Microtritia Märkel, 1964Euphthiracaridae Jacot, 1930 (ITIS 733413)Comments: As well as the usual nomenclatorial morass that is typical in the Oribatida, theEuphthiracaridae contains one very well known genus, Rhysotritia Märkel & Meyer, 1959,that is a junior synonym of Acrotritia Jacot, 1923. Rhysotritia is used in the Almanac forconsistency with the literature.Euphthiracarus Ewing, 1917 (ITIS 733666)Diagnostic characters: genital region covered by a single genital-aggenital plate; anal regionwith a single anal-adanal plate; notogaster often pitted or sculptured (at least anteriorly);bothridial scale ventral; anterior and posterior interlocking triangles present; usuallysculptured (ridged or foveolate); solenidion s present on genu IV; palps 3-segmentedAlso Known As: none in current use.Type species: Phthiracarus flavus Ewing, 1908World species: ~65Comments: Only one species of Euphthiracarus appears to be common in Alberta and I haveidentified this mite as Euphthiracarus flavus (Ewing, 1908) based on Niedbala (2002).42

Almanac of Alberta Oribatida 2.3 13 January 2013However, numerous records exist for the very similar Holarctic species E. cribrarius(Berlese, 1904). DNA bar-coding may shed some light on this problem. SubgenusEuphthiracarus (Euphthiracarus) (ITIS 734628).Canadian species listed on DOC (bold = AB): Euphthiracarus cernuus Walker, 1965; E.crassisetae Jacot, 1938; E. cribrarius (Berlese, 1904); E. depressculus Jacot, 1924; E.flavus (Ewing, 1908); E. fulvus (Ewing, 1909); E. longirostralis Walker, 1965; E.monodactyleus (Willmann, 1919); E. monyx Walker, 1965; E. pulchrus Jacot, 1930; E.punctulatus Jacot, 1930; Euphthiracarus sp.8. Key to adult Euphthiracarus in and near Alberta*1. Sensillus with spindle-shaped or fusiform head .......................................................................... 2- Sensillus without distinct head, but may be slightly swollen or speculate distally ...................... 62 (1). Tarsi heterotridactyl ............................................................................................................... 3- Tarsi monodactyl ........................................... Euphthiracarus monyx Walker, 1965 BC; CA; OR3. Prodorsum with 2 pairs of lateral carinae .................................................................................... 4- Prodorsum with one pair of lateral carinae ...............................................................................................................................Euphthiracarus fusulus Niedbala, 2002 southern and central USA4. bo (71-116) with large, fusiform head ......................................................................................... 5- bo (51) with small, strongly barbed head ........................ Euphthiracarus crassisetae Jacot, 19385. Distance le-le < ro-ro; bo ~3/4ths length of in; 4 most posterior anogenital setae subequal; c2,cp shorter than c1 ....................................................... Euphthiracarus depressculus Jacot, 1924- Distance le-le ~ ro-ro; bo ~1/2 or less length of in; an1-2 whip-like, longer than others; c2, cplonger than c1 ................................................................ Euphthiracarus fulvus (Ewing, 1909)6 (1). Sensillus (bo) swollen distally and ends in tuft of spines; in +/- appressed, shorter than bo ......................................................................................... Euphthiracarus cernuus Walker, 1965- Sensillus not swollen distally, with short barbs in distal half, with or without cluster of longerbarbs at tip; in erect, similar in length to or longer than bo ....................................................... 77. Surface of notogaster foveolate ................................................................................................... 8- Surface of notogaster with mosaic pattern ......................... Euphthiracarus pulchrus Jacot, 19308. Seta c3 much shorter than c2 and more or less in line with c1-2; ag2 (medial seta) ~2x ag1(lateral); genu I 5(2); genu II 4(1) ......................... Euphthiracarus cribrarius (Berlese, 1904)- Seta c3 inserted more anteriorly than c1-2 and about 80% as long as c2; ag1 larger or similar toag2; genu I 4(2), genu II 3-4(1) ..................................... Euphthiracarus flavus (Ewing, 1908)* modified from Niedbala 200243

Almanac of Alberta Oribatida 2.3 13 January 2013Euphthiracarus cribrarius (Berlese, 1904)Also Known As: Phthiracarus cribrarius Berlese; Oribotritia cribraria (Berlese, 1904);Phthiracarus punctulatus Berlese, 1913.ABMI code/Common name: EUPHCRIDiagnostic characters: bo barbed in distal half; genua I-II: 5(2), 4(1); ag2>ag1Overview: Niedbala (2002) reports this European species from much of North America includingAlberta (Cypress Hills) and describes it as Holarctic but absent from the southern Nearctic.Barcodes:ID Check: Determination by DEW based on Niedbala (2002). In his key (p. 85), he distinguishesit from E. flavus (Ewing, 1908) by aggenital seta ag2 being longer and thicker than ag1;however, in his diagnoses and illustrations there are also other differences, especially in thegenual chaetotaxy (e.g. genu I 5(2) vs 4(2)), surface ornamentation (strongly punctate vscovered with strong concavities), and notogastral seta c2 (in line with c1-2 vs insertedanterior to c1-2). This and the following species may represent a species complex.Similar taxa: Euphthiracarus flavus (Ewing, 1908) (see below).ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB [Cypress Hills], BC, MB, NS; [Holarctic]Images:Ecology:Literature: Marshall et al. (1987) ; Mahunka & Mahunka-Papp (1995); Niedbala (2002).*Euphthiracarus cf flavus (Ewing, 1908) (ITIS 735834)Also Known As: Phthiracarus flavus Ewing, 1908;ABMI code/Common name: EUPHFLA / Yellow Box MiteDiagnostic characters: aspis 270-300, notogaster 440-480 yellow-brown, foveae shallow, with4-8 internal punctae in micropunctate background; aspis granulate with 2 pairs of carinae;bo (105-135) slender, stalk +/- smooth (very faint barbs), slightly swollen and stronglyspined distally; in (~110-120, in-le 112) & le (~75, le-ro 35) erect, barbed; ro (~70-80)closely inserted, reclinate, acuminate, lightly barbed distally, ex (~5) minute; notogastralsetae erect, barbed in distal half, +/- blunt; c1 (87-105), c2 (82-87), c3 (65-75); genitoanalshields micropunctate; 6+3 genital setae, ag1~ag2 (ag1 18, barbed; ag2 20[27], smooth orbarbed); an1-2 setae flagellate (both ~100), lightly barbed, almost smooth; ad1-3(70)(55)(42), an3 (38), all barbed; alveolus anteriad ag3; heterotridactyl; genua I-II: 4(2), 3(rarely 4)(1)Overview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. Euphthiracarus cf flavus is themost common euphthiracarid box mite in Alberta. The identification is tentative becausethis endemic North American species is very similar to the Holarctic Euphthiracaruscribrarius and the differences between the two species may not be significant. Niedbala44

Almanac of Alberta Oribatida 2.3 13 January 2013(2002) reports E. flavus from MB, QC, and NS to the east, BC to the west, and the USAsouth and east of Alberta.Barcodes: 343 (658 x3), 344 (658 x 3), BOG4 (658 x 3)ID Check: Determination by DEW based on Niedbala (2002). In his key (p. 85), he distinguishesit from E. cribrarius by aggenital seta a1-g2 being similar; however, in his diagnoses andillustrations there are also other differences, especially in the genual chaetotaxy (e.g. genu I4(2) vs 5(2)), surface ornamentation, and notogastral seta c2 (anterior to c1-2 vs more orless in line to c1-2). To date, all the Alberta specimens appear to be E. flavus based on theleg setation, but have some variation in aggenital setae (e.g. ag1 is sometimes larger andthicker than ag2; genu II sometimes has 4 setae).Similar taxa: Euphthiracarus cribrarius (Berlese, 1904) (see above).ABMI Site Records: 2007: 359, 514, 543, 586, 600, 618, 632, 793, 825, 857, 1069, UPL4,UPL6, UPL7, UPL8, UPL9. 2008: 344, 412, 690, 866, 867, 868, 899, 900, 975, 1009, 1043,1085, 1116, 1353, 1378, 1403, BOG4, SL12, UPL1, UPL2. 2009: 13, 528, 539, 568, 759,760, 761, 1491, 1510. 2010: 890, 923, 1175, 1176, 1177, 1208, 1209, 1239, ALPAC-1,ALPAC-1, ALPAC-1, ALPAC-8, ALPAC-9, ALPAC-10, ALPAC-11, ALPAC-11,ALPAC-12, ALPAC-13, ALPAC-14, ALPAC-15, OG-1208-1, OG-1354-1. 2011: 482,958, 984, 1017, 1024, 1126, 1157, A608-3, A637-1, A637-2, A692-1, A692-2, A757-1,A757-2, A761-1, A761-2, A761-3, OG-1212-1, OG-1275-1.DOC (1/2008): [+other] Distribution: BC, MB, QC, NS; [OR, WV, MS, MC, VA, IL]Images: SEM (MP)Ecology: Gravid females carry up to 3 eggs. Gut boli have mixtures of coarse organic matter,dark and light hyphae, or are all hyphae.Literature: Walker (1965); Marshall et al. (1987); Niedbala (2002)45

Almanac of Alberta Oribatida 2.3 13 January 2013*Euphthiracarus cf fulvus (Ewing, 1909) (ITIS 73xxxx)Also Known As: Phthiracarus fulvus Ewing, 1909;ABMI code/Common name: EUPHFUL / Brownish Box miteDiagnostic characters: aspis 340-350, notogaster 530-570, yellow-brown, with strong clearfoveae in collar, foveae in micropunctate background; aspis with 2 carinae, bo (93-105)with acuminate, fusiform club, covered in short, fine barbs; in (162-175) erect, barbed,acuminate; le (110-120), ro (100-103) both straight, barbed, acuminate; ex (26) simple;notogastral setae (c1 90, c2 140), bent at base, barbed, +/- acuminate; cheliceral basedenticulate; heterotridactyl; 5+4(5) pairs genital setae (5 on anterior carina on one side),median ag (40), lateral ag (30); 1+2 anal, 1+2 adanal setaeOverview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. This is the first record of this ratherlarge (0.870-0.920 mm long) box mite from Alberta.Barcodes:ID Check: Determination by DEW based on Niedbala (2002).Similar taxa: E. depressculus Jacot, 1924 NS (with distinct concavities, notogastral setaeshorter)ABMI Site Records: 2007: BOG7. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: QC [CO]Images:Ecology: One specimen has gut boli of coarse organic matter.Literature: Niedbala (2002)Rhysotritia Märkel & Meyer, 1959 (UBIO 99000060) (=Acrotritia Jacot, 1923)Diagnostic characters: genital region covered by a single genital-aggenital plate; anal regionwith a single anal-adanal plate; notogaster often pitted or sculptured (at least anteriorly);bothridial scale dorsal to posterior; a single interlocking triangle; little or no sculpturing;genu IV without solenidion; palps 3-segmented; 8-9 pairs genital setae; seta in barbed,usually longer than bo; usually tridactylAlso Known As: Acrotritia Jacot, 1923 has precedence, but was not in use until Subías (2004).To maintain continuity with the bulk of the literature and the DOC, Rhysotritia is usedherein.Type species: Hoplophora ardua Koch, 1841World species: 43 spp.Comments: The widespread species, Rhysotritia ardua (CL Koch, 1841), is common in Alberta.46

Almanac of Alberta Oribatida 2.3 13 January 2013Canadian species listed on DOC (bold = AB): Rhysotritia ardua (CL Koch, 1841); R. comteaeMahunka, 1983; R. curticephala Jacot, 1938; R. diaphoros Niedbala, 2002; R.parareticulata Niedbala, 20029. Key to adult Rhysotritia* in Canada1. Surface of notogaster punctate ........................................................................................................ 2- Surface of notogaster reticulate; ON ............................... Rhysotritia parareticulata Niedbala, 20022. Tarsi I bidactyl, II-III heterotridactyl; body brown, punctate; bo dilated and spinose distally; exminute, other setae erect and spinose distally ................................................................................ 3- All tarsi monodactyl; body yellow, punctate; bo subglobular with corona of spines; ON, NB,US west to CO, AZ ................................................................ Rhysotritia curticephala Jacot, 19383. Tarsi IV heterotridactyl; cosmopolitan .................................. Rhysotritia ardua (C.L. Koch, 1841)- Tarsi IV monodactyl; ON, Midwestern US ......................... Rhysotritia diaphoros Niedbala, 2002* Excluding questionable record of pantropical Rhysotritia comteae Mahunka, 1983 in ON47

Almanac of Alberta Oribatida 2.3 13 January 2013Rhysotritia ardua (C.L. Koch, 1841) (UBIO 99000061)Also Known As: Hoplophora ardua C.L. Koch, 1841; Acrotritia americanus (Ewing, 1909);Euphthiracarus americanum (Ewing, 1909); Acrotritia sinensis Jacot, 1923ABMI code/Common name: RHYSARD / Variable Box MiteDiagnostic characters: Aspis 270-310, notogaster 430-520, mostly brown to dark-brown (rarelyyellow-brown or yellow). Tarsal claw formula 2-3-3-3. Prodorsum with single carina, bo(80-95) with distal half barbed on anterior face; in (110-120) erect, barbed, +/- blunt; le (65-75), ro (50-55) both straight, barbed; notogastral setae (58-85) barbed, +/- blunt; notogastergranular, with faint foveae anteriorly; 8-9 pairs genital setae, all shortOverview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. This large (0.700-0.840 mm long),brownish box mite has a Holarctic distribution. Only female mites are known and the miteapparently reproduces parthenogenetically.Barcodes: 444 (0, 0)ID Check: Determination by DEW based on Niedbala (2002).Similar taxa: Euphthiracarus spp. have a ventral bothridial scale and usually have sculpturednotogasters. Young specimens of R. ardua may be yellow-brown in colour and could beconfused with Euphthiracarus; all slided specimens checked against Niedbala (2002); 1434SW 24 appears to be monodactyl, but is not R. curticephala (R. monodactylea introduced inFL).ABMI Site Records: 2007: 216, 330, 331, 358, 360, 388, 389, 515, 545, 585, 616, 631, 633, 663,665, 791, 1603, BOG6, BOG7. 2008: 444, 719, 974, 1222, 1224, 1434, BOG1, BOG3,FM07. 2009: 498, 508, 529, 530, 530, 537, 560, 561, 570, 698, 883. 2010: 324, 325, 352,353, 354, 383, 384, 1036, 1142, 1170, 1171, 1175, 1652, OG-972-1. 2011: .DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, SK, MB, ON, QC, NB, NS, NF[Cosmopolitan]Images: SEM (Onoway)Ecology: A mesophilous mite found in many habitats including bogs. Parthenogenetic(thelytokous): gravid females carry up to 3 eggs. Gut boli usually have coarse organicmaterial and dark and clear hyphae.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); (Behan-Pelletier & Bissett1994); Niedbala (2002); Weigmann (2006).*Rhysotritia diaphoros Niedbala, 2002Also Known As:ABMI code/Common name: RHYSDIADiagnostic characters: Female aspid length 245, notogaster 535, yellow brown in colour. Tarsalformula 2-3-3-1. Prodorsum micropunctate, with single carina; bo (~85) scimitar-shapedbarbs along anterior margin increase in size distally; in (~85) erect, barbed in distal 2/3rds;le (49), ro (40) similar; ex (13) fine, simple. Notogaster densely microtuberculate, setae (40-48

Almanac of Alberta Oribatida 2.3 13 January 201360) erect and barbed in distal half. Genital-aggenital shield with 9 short setae (3+6); analadanalplate with 5 pairs erect setae (47-53) barbed distally and one minute seta (an3).Overview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. This yellowish brown box mite isvery similar to Rhysotritia ardua, but has only a single claw on legs IV.Barcodes:ID Check: Determination by DEW based on Niedbala (2002).Similar taxa: Young specimens of R. ardua may be yellow-brown in colour.ABMI Site Records: 2007: none. 2008: none. 2009: 1305. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: ONImages:Ecology:Literature: Niedbala (2002).Oribotritiidae Grandjean, 1954 (ITIS 733412)Mesotritia Forsslund, 1963 (ITIS 73xxxx)Diagnostic characters: bothridial scale ventral; setae le well anterior to setae in and displacedlaterally, inserted near margin of aspis; distance between setae le ~ to that between setae inor greater; genu IV without solenidion.Also Known As: Entomotritia Märkel, 1964Type species: Phthiracarus flagelliformis Ewing, 1909World species: 29 including the cosmopolitan Mesotritia atractos Niedbala, 2004; Holarctic M.flagelliformis (Ewing, 1909); and a number of North American species.Comments:Canadian species listed on DOC (bold = AB): Mesotritia flagelliformis (Ewing, 1909);Mesotritia nuda (Berlese, 1887); Mesotritia sp.; [NB - Maerkelotritia alaskensis Hammer,1967, M. cryptopa (Banks, 1904), and M. kishidai (Aoki, 1958) are reported from BC]Mesotritia nuda (Berlese, 1887) (ITIS 73xxxx)Also Known As: Oribotritia brachythrix Walker, 1965; Mesotritia brachythrix (Walker, 1965)ABMI code/Common name: MESONUD / Naked Box MiteDiagnostic characters: aspis 330-480, notogaster 575-890; bo clubbed; notogastral setae short;5-7 pairs genital setaeOverview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. This Holarctic species appears tobe rather rare in Alberta and may be restricted to disturbed habitats.49

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: DEW (redescribed in Niedbala (2002)).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 1126, 1218.DOC (1/2008): [+other] Distribution: AB, BC, ON, NB; [Holarctic; Rosebud, Wheatland Co.,AB (51.30, -112.95), litter near railroad tracks, S. Latonas]Images: SEM (Rosebud)Ecology:Literature: Niedbala (2002); Weigmann (2006).Protoribotritia Jacot, 1938 (ITIS 733661)Diagnostic characters: anal plates (bearing anal setae) discrete, not fused to adanal region;genital plate free; notogastral integument smooth, uniformly shiny in reflected light;bothridial scale ventral; palps 4-segmented; setae le well anterior to setae in; seta le notlaterally displaced; distance between setae in distinctly greatest of the 3 dorsal pairs; genuIV with one solenidionAlso Known As: none.Type species: Protoribotritia canadaris Jacot, 1938World species: 5Comments: Small box mites with shiny cuticle. The three species known from AB are all verysimilar.Canadian species listed on DOC (bold = AB): Protoribotritia canadaris Jacot, 1938; P.oligotricha Märkel, 1963; Protoribotritia sp.10. Key to adult Protoribotritia in Canada1. 3 pairs adanal setae; anal setae 1-2 inserted near each other between ad1-2 .................................. 2- 4 pairs adanal setae; anal setae 1-2 distant ............................ Protoribotritia canadaris Jacot, 19382. Notogaster 331-338 long; sensillus with long narrow pedicel and shorter fusiform headcovered in minute spines ............................................. Protoribotritia oligotricha Maerkel, 1963- Notogaster 250-320 long; sensillus with shorter stalk and smooth, leaf-like head with weaklydenticulate margin ................................................................................ Protoribotritia sp. 1 DEWProtoribotritia canadaris Jacot, 1938Also Known As:ABMI code/Common name: PROTCAN50

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: aspis 144-195, notogaster 303, light yellow; bo (71) with long pediceland fusiform head; in>le>ro; le relatively closely inserted; 15 pairs relatively short, finenotogastral setae; c1 set back from margin compared to c2-3; 7 pairs genital, 2 pairsaggenital, 3 pairs anal and 4 pairs adanal setae; anal setae relatively evenly spaced, an1-an2 > an2-an3Overview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. The three species of Protoribotritiareported from Alberta are all small, shiny yellowish box mites.Barcodes:ID Check:Similar taxa: P. oligotricha; Protoribotritia sp. 1 DEW.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: none [AB, Waterton Lakes – Niedbala (2002)]; YT, ON,NF; [CN, NY, NM]Images:Ecology: Gut boli with hyphae or indistinct or coarse organic matter. Gravid females carry asingle large egg.Literature: Gilyarov & Krivolutsky (1975); Niedbala (2002).Protoribotritia oligotricha Maerkel, 1963Also Known As:ABMI code/Common name: PROTOLIDiagnostic characters: aspis 187-192, notogaster 331-338, light yellow; bo (71) with longnarrow pedicel and shorter fusiform head covered in minute spines; in>le>ro; in mostwidely inserted, le relatively closely inserted; 14 pairs relatively short notogastral setae c1set back from margin compared to c2-3; c1

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology:Literature: Gilyarov & Krivolutsky (1975); Niedbala (2002).***Protoribotritia sp. 1 DEW (RAM 9900050)Also Known As:ABMI code/Common name: PROTSP1 / Tiny Box MiteDiagnostic characters: aspis 170-220, notogaster 250-320, light yellow, micropunctate; bo (50-75) with short stalk and smooth, leaf-like head with weakly denticulate margin; 7 pairsgenital, 2 pairs short aggenital, 3 (4) pairs anal (an1-2 closely inserted and distant froman3), and 3 pairs adanal setae; in (80-85) long, slender, erect; le similar, but shorter (60-65),about mid-aspis, halfway to ro (~50); ex (20-25) slender; monodactyl claws with mediantooth; 1 st pair of genital papillae larger than others; genu and tibia IV with solenidion;notogastral setae slender, curled; c1 (~40); palps 4-segmented 2-0-2-3(1)+5Overview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. The three species of Protoribotritiareported from Alberta are all small, shiny yellowish box mites. I have not been able toconfirm the presence of the other species, but this undescribed species is common.Barcodes:ID Check: Determination by DEW based on Niedbala (2002); emails with Niedbala in 2008suggest this is a new species and probably the same one referred to in Lindo & Visser(2004). 1102 specimen has 4 pairs of anal setae (an1-3 close, an4 anterior); 1133 has boonly partially developed on one side.Similar taxa: Protoribotritia oligotricha Maerkel, 1963ABMI Site Records: 2007: 514, 584, 664, 1102, 1133, 1135. 2008: 932, 933, 976, 1007, 1008,1402, 1403. 2009: 1, 33R, 530. 2010: 1037, ALPAC-12, OG-1005-1, OG-1007-1. 2011:1136.DOC (1/2008): [+other] Distribution: Protoribotritia sp. reported in AB, QC; [EMEND (56.46, -118.22); also Protoribotritia sp reported in BC by Lindo 2004-2007.]Images: SEM (932R, 976R)Ecology: Lindo & Visser (2004) reported a mite that may be this species from the EMEND site.Gut boli have indefinite organic matter and fungal hyphae. Gravid females carry a singleegg.Literature: Gilyarov & Krivolutsky (1975); Niedbala (2002); Weigmann (2006).Back to Table of Contents52

Almanac of Alberta Oribatida 2.3 13 January 2013Phthiracaroidea Perty, 1841 (ITIS 733349)(Return to Key to Major Groups)(Return to Mixonomatides)Comments: Phthiracaroid mites have the plates in the ano-genital region broad and more or lessflattened in a ‘box-like’ manner. Euphthiracaroid mites generally have these plates meetingat an angle and thus appearing knife-like.Phthiracaridae Perty, 1841 (ITIS 733415)11. Key to adults of genera and species of Phthiracaroidea in Alberta1. Anal plate with two setae (an1, an2) on medial margin & three (ad1, ad2, ad3 – last two maybe reduced to alveoli) in oblique row away from margin (Fig. 11.1B-C); if three appear to beon margin, the posterior two (ad1, an1) are widely spaced, and in lateral aspect the plates arenot unusually convex. Seta in as long as or longer than sensillus (bo). Notogaster with orwithout ornamentation ............................................................................................................... 2- Anal plates each with 4 setae (an1-2, ad1-2) closely adjacent arising from within the elevatedmedial margin (which in lateral aspect is strongly convex) (Fig. 11.1A). Seta in usuallyshorter than bo. Notogaster strongly foveolate (Fig. 11.3). ............................................................................................................................................. Atropacarus striculus (CL Koch, 1835)Figure 11.12. Seta in similar to le (and at most twice its length) and both procumbent, thin, simple;notogastral setae usually smooth, fine; some anal shield setae reduced, vestigial; genitalsetation various ................................................................................................ Phthiracarus (3)- Seta in erect, barbed, much longer than minute le; notogaster red brown and evenlymicrotuberculate; anal shield setae all well developed; genital setation 7(3+4):2 .............................................................................................. Hoplophthiracarus illinoisensis (Ewing, 1909)53

Almanac of Alberta Oribatida 2.3 13 January 20133. Sensillus short and broad; 9 pairs of setae on genital plate 7(4+3):2 or 6(4+2):3 ....................... 4- Sensillus long (75-100), slightly phylliform-expanded and barbed distally; 7 pairs of setae ongenital plate: 6(3+3):1 ................................................... Phthiracarus boresetosus Jacot, 19304. Sensillus (25-48), with angular phylliform club, stipe with subtriangular cell; in hair-like (100-110), twice as long as le (35-50); ex (35-50); genital setation 7(4+3):2 ........................................................................................................................ Phthiracarus borealis (Trägårdh, 1910)- Sensillus (45-50) short club, hyaline tip (10) evenly spatulate to truncate; in (90-95)smooth, fine, ~ but somewhat longer than le (65-70); ro (40-45) shorter; ex minute; genitalsetation 6(4+2):3 ............................................................. Phthiracarus validus Niedbala, 1986Figure 11.2Atropacarus Ewing, 1917 (ITIS 733673)Diagnostic characters: anal plates strongly convex, with 4 pairs of closely adjacent setae onmargin (+ 1 other pair); tibia IV with one distinct seta (v') and one solenidion (phi)Also Known As: SteganacarusType species: Hoplophora stricula CL Koch, 1835World species: 34Comments: One widespread species, Atropacarus striculus (C.L. Koch, 1835), is known fromAlberta. Atropacarus (Atropacarus) Ewing, 191754

Almanac of Alberta Oribatida 2.3 13 January 2013Canadian species listed on DOC (bold = AB): Atropacarus (Hoplophorella) cucullatus (Ewing,1909); A. striculus (C.L. Koch, 1835); [NB subgenus Hoplophorella: A. (H.) granulata(Banks, 1902) ON; A. (H.) sp. MB, QC, NS; Steganacarus granulatus (Banks, 1902) ON;Steganacarus sp. ON; Steganacarus thoreaui Jacot, 1930 NU NT ON QC NB NS NF]Atropacarus striculus (CL Koch, 1835) (ITIS 735963)Also Known As: Hoploderma striculus (C.L. Koch, 1835); Phthiracarus stricula (C.L. Koch,1835); Steganacarus striculum (C.L. Koch, 1835); Steganacarus diaphanus Jacot, 1930;Steganacarus senex Aoki, 1958Figure 11.3ABMI code/Common name: ATROPAC / Pink Box MiteDiagnostic characters: yellowish (to pinkish) with strongly foveolate integument; bo long,sickle-shaped barbed, in usually shorter than sensillus; 16 pairs erect, distally barbednotogastral setae. Anal plates each with 4 (an1-2, ad1-2) closely adjacent on medial marginand in lateral aspect, strongly convex.Overview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. This Holarctic species is commonand sometimes abundant in Alberta.Barcodes: 316 (0, 491, 658); 374 (0, 658); 1043 (598, 658x 2); 1043 (598, 658 x 2)55

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Niedbala (2002). These mites are easily overclearedin acid macerants and can make very poor slides.Similar taxa: Atropacarus (Hoplophorella) cucullatus (Ewing, 1909) has phylliform notogastralsetae and has been reported from ON. Other species of Atropacarus (Atropacarus) haveeither 19 pairs of notogastral setae, very short setae, or a strongly developed notogastralcowl.ABMI Site Records: 2007: 248, 545, 649, 793, 825, BOG6, UPL5. 2008: 316, 374, 866, 1043,1224, 1353, 1379, BOG2. 2009: 13, 499, 506, 507, 528, 882, 916, 949, 1510. 2010: 890,1142, 1170, 1175, 1177, 1209, 1429, OG-1007-1. 2011: 391, 608, 672, 958, 984, 1024,1092, 1105, 1126, 1137, 1157, 1159, 1238, 1332, OG-1248-1, OG-1275-1.DOC (1/2008): [+other] Distribution: AB (Waterton Lakes), Dinosaur Provincial Park, YT,NU, NT, BC, MB, ON, QC, NB, NS, NF; [Holarctic]Images: SEM (Onoway)Ecology: Winchester & Lindo (2006) reported this species from Sitka spruce forest floor onVancouver Island. Gut boli have coarse organic material and light and dark hyphae. Gravidfemales can carry at least 4 eggs. Specimens [as Steganacarus] have been found in thefeathers of birds in Russia, a possible means of long distance dispersal (see Krivolutsky &Lebedeva 2004).Literature: Gilyarov & Krivolutsky (1975) [as Steganacarus]; Marshall et al. (1987); Niedbala(2002).Hoplophthiracarus Jacot, 1933 (ITIS 733675)Diagnostic characters: anal plates with 5 pairs of setae of which 2 pairs are closely inserted onmargins; in barbed, erect, much longer than leAlso Known As:Type species: Hoploderma histricinum Berlese, 1908World species: 41Comments:Canadian species listed on DOC (bold = AB): Hoplophthiracarus histricinus (Berlese, 1908), H.illinoisensis (Ewing, 1909), H. paludis Jacot, 1938 [= illinoisensis according to Niedbala2002], H. pavidus (Berlese, 1913) [MB, ON doubtful records, probably illinoisensis(Niedbala 2002)], Hoplophthiracarus sp. [MB]*Hoplophthiracarus illinoisensis (Ewing, 1909) (ITIS 736070)Also Known As: Hoplophthiracarus paludis Jacot, 1938; Atropacarus illinoisensis (Ewing,1909); Steganacarus illinoisensis (Ewing, 1909)ABMI code/Common name: HOPLILL / Brown Box Mite56

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: aspis 210-270, notogaster 350-420, red-brown, integument weaklyfoveolate ventro-laterally and with even subsurface micropunctate, some foveae on collar;lateral carina ends at sinal arch; bo (75-80) with elliptical, phylliform head, stipe attenuate;in (~85-90) erect, curves posteriad, barbed distally, much longer than minute le (8-15) or ex(18-28); ro (25) fine; notogastral setae (55-65) thick, sparsely barbed, mostly recurved;genital setation 7(4+3):2; anal plates with 5 pairs of setae of which 2 pairs are closelyinserted on margins (ad1 looks marginal in side view) ad3 (75), ad2(~75), ad1(40), an1-2(~55), all sparsely barbed; tarsal claws with 2 small denticlesOverview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. This is a dark reddish brown boxmite with long setae.Barcodes:ID Check: Determination by DEW based on Niedbala (2002); Weigmann (2006).Similar taxa: H. histricinus (Berlese, 1908) is covered in distinct concavities and is yellow tolight brown in colour.ABMI Site Records: 2007: 631, 663, 665, BOG6. 2008: none. 2009: 506, 529, 537, 570. 2010:1035, 1170. 2011: 392, 483, 604, 969, 1071.DOC (1/2008): [+other] Distribution: YT, ON, QC, NB, NSImages: SEM (665R)Ecology: Gut boli contain mostly coarse dark material with some fungal hyphae. Gravid femalescan carry at least 4 eggs.Literature: Marshall et al. (1987); Niedbala (2002); Weigmann (2006).Phthiracarus Perty, 1841 (ITIS 733677)Diagnostic characters: anal plates with 3 pairs of setae of which 2 pairs are closely inserted onmargins; ad1 and ad2 usually vestigialAlso Known As: Archiphthiracarus.Type species: Phthiracarus contractilis Perty, 1841 (after Marshall et al. 1987)World species: 206Comments: Generic concepts in this family can be broad or narrow. Phthiracarus(Archiphthiracarus) Balogh & Mahunka, 1979 (ITIS 734640); Phthiracarus (Phthiracarus)Perty, 1941 (ITIS 734639)Canadian species listed on DOC (bold = AB): Phthiracarus aliquantus Niedbala, 1988; P.borealis (Trägårdh, 1910); P. boresetosus Jacot, 1930; P. brevisetae Jacot, 1930; P.bryobius Jacot, 1930; P. cognatus Niedbala, 1988; P. compressus Jacot, 1930; P. globosus(C.L. Koch, 1841); P. irreprehensus Niedbala, 1988; P. japonicus Aoki, 1958; P. lentulus(C.L. Koch, 1841); P. longulus (C.L. Koch, 1841); P. luridus (Ewing, 1909); P. modestusNiedbala, 1988; P. nitidus Niedbala, 1986; P. setosellus Jacot, 1929; P. setosus (Banks,57

Almanac of Alberta Oribatida 2.3 13 January 20131895); P. sp.; P. sphaerulus (Banks, 1895); P. validus Niedbala, 1986 [NBAustrophthiracarus olivaceus Jacot, 1929 ON QC]Phthiracarus cf borealis (Trägårdh, 1910) (ITIS 736403)Also Known As: Phthiracarus nr. borealis (Trägårdh) (Lindo & Visser 2004); Hoplodermaboreale Trägårdh, 1910; Paraphthiracarus borealis (Trägårdh, 1910)ABMI code/Common name: PHTHBOR / Boreal Box MiteDiagnostic characters: aspis 200-280, notogaster 480-520, grey-brown to yellowish, evenlymicropunctate-granular; carina long, over irregular pattern of 3-4 lineae in hair-like (100-110); le (35-50); bo short (25-485), with angular phylliform club, stipe with subtriangularcell; ex (35-50); ro (50) smooth, curved; notogastral setae mostly long (100-110), c1-2(110), c3 (35); genital setation 7(4+3):2; ad3 (~42), , an1-2 (~50); ad2-3 reduced to alveoli;seta d (11) thick, hooked and barbed at tip, in middle of femur I (3 setae); h>h-h; tarsalclaws with 2 denticlesOverview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. Niedbala treats Phthiracarusborealis (Trägårdh, 1910) as a nomen dubium and reports that the type is unknown.However, the DOC reports Phthiracarus borealis (Trägårdh, 1910) from across Canada andP. nr borealis is reported in Lindo & Visser (2004). For consistency with previous reports, Iam treating this mite as P. borealis. It was treated as a member of the subgenusArchiphthiracarus in Subías (2004).Barcodes: BOG4 (658x3)ID Check: Determination by DEW identification based on Gilyarov & Krivolutsky (1975).Similar taxa: This mite keys to P. longulus (C.L. Koch, 1841) [reported from BC, UT, NM, MI,KY, NY, MO, AL, FL] in Niedbala (2002), but longulus has spindle-shaped bo and shorternotogastral setae (also see Weigmann 2006). This mite is also similar to P. validus butlighter in colour and has only 3 setae on femur I.ABMI Site Records: 2007: 359, 388, 512, 584, 585, 586, 616, 618, 632, 793, 825, 857, 1134,UPL4, UPL6, UPL7. 2008: 343, 443, 866, 867, 868, 899, 932, 1043, 1378, 1635, BOG4,58

Almanac of Alberta Oribatida 2.3 13 January 2013FM06, UPL1. 2009: 528, 1491, 1510. 2010: 151, 1429, ALPAC-2, ALPAC-4, ALPAC-9,ALPAC-10, ALPAC-13, ALPAC-13, ALPAC-13. 2011: .DOC (1/2008): [+other] Distribution: AB, YT, BC, MB, ON, QC, NB, NS, NF; [AK, EMEND(56.46, -118.22)?; Holarctic]Images: SEM (MP, Meanook).Ecology: Gut boli contain coarse organic matter and light and dark hyphae. Gravid females carryat least 5 eggs. Often co-occurs with P. boresetosus. Specimens have been found in thefeathers of birds in Russia, a possible means of long distance dispersal (see Krivolutsky &Lebedeva 2004).Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Niedbala (2002).Phthiracarus boresetosus Jacot, 1930 (ITIS 736339)Also Known As: Phthiracarus boresetosum Jacot, 1930ABMI code/Common name: PHTHBOE / Jacot’s Box MiteDiagnostic characters: aspis 200-260, notogaster 340-500, grey-brown, evenly micropunctategranular;notogastral setae very long (85-125), smooth, bent near base; in hair-like (100-125); le (75-80); bo long (75-100), slightly phylliform-expanded and barbed distally; ex(25-40); ro (50) smooth, closely inserted; ad2-3 short and stubby or reduced to alveoli; 7pairs genital setae 6(3+3):1; tarsal claws with 2 denticles.Overview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut. The posterior lateral setae on theanal shields (ad2-3) are usually present only as alveoli, but sometimes expressed as short,truncate setae.Barcodes: 343 (658), 345 (658), 867 (658 x 4), 1379 (658 x 2)ID Check: Determination by DEW based on Niedbala (2002), Weigmann (2006).Similar taxa:ABMI Site Records: 2007: 512, 514, 543, 544, 584, 599, 600, 616, 664, 857, 1070, 1134, UPL5,UPL6, UPL7, UPL9. 2008: 343, 345, 443, 690, 720, 721, 866, 867, 900, 932, 933, 934,974, 1008, 1043, 1085, 1116, 1353, 1403, BOG1, FM04, FM06, SL10, SL12, UPL1, UPL2,UPL3. 2009: 507, 539, 560, 568, 568, 568, 759, 760, 882, 916, 1510. 2010: 877, 908, 1142,1171, 1175, 1207, 1208, 1209, 1237, 1239, ALPAC-2, ALPAC-4, ALPAC-10, ALPAC-12,ALPAC-14, OG-1005-1, OG-1104-1, OG-1171-1, OG-1208-1, OG-1208-1, OG-1208-1,OG-910-1, OG-972-1, OG-976-1. 2011: 91, 482, 963, 968, 970, 1105, 1136, 1137, 1138,1238, A608-3, A637-2, A761-1.DOC (1/2008): [+other] Distribution: AB (Cypress Hills), YT, BC, MB, ON, QC, NB, NS, NF;[Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)]Images: SEM (MP)Ecology: Gut boli have coarse organic matter, clear material, and some hyphae. Gravid femalescarry at least 6 eggs. Often co-occurs with P. borealis.59

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Marshall et al. (1987); Niedbala (2002); Weigmann (2006).Phthiracarus validus Niedbala, 1986 (UBIO 96660614)Also Known As:ABMI code/Common name: PHTHVAL / Large Box MiteDiagnostic characters: aspis 360-390, notogaster 640-730, brown with dense, small tubercles;lateral carina medium; bo (45-50) short club, hyaline tip (10) evenly spatulate totruncate; in (90-95) smooth, fine, ~ but somewhat longer than le (65-70); ro (40-45)shorter; ex minute; notogastral setae (150) smooth, fine; seta d well developed, in middleof femur I (4 setae?); 9 genital setae 6(4+2):3; ad3 (~75) fine, similar to an1-2; ad2 stub,ad3 longer stubOverview: Box mites are so called because they can withdraw their legs into their body and closethe front part over the rear, like a box being folded shut.Barcodes:ID Check: Determination by DEW based on Niedbala (2002). Good match to description, buthard to see femoral setation.Similar taxa: P. longulusABMI Site Records: 2007: 1069. 2008: 1378. 2009: none. 2010: none. 2011: none. 2012:182NW.DOC (1/2008): [+other] Distribution: AB (Waterton Lakes, Jasper, Johnson Canyon), BC,ON, QC, NB, NS; CA, UT, CO, AZ, NM, SD, WI, WI, IA, MI, ME, VT, NH, NY, MA,VA, AL, NC, VA, GA60

Almanac of Alberta Oribatida 2.3 13 January 2013Images:Ecology: Reported from moss on wood, moss, lichen, pine litter.Literature: Niedbala (1986); Marshall et al. (1987); Niedbala (2002).Epilohmannioidea(Back to key to Major Groups)(Back to Mixonomatides)Comments: One family, 4 genera: to date only one undetermined species of Epilohmannia hasbeen reported from Alberta, but other species as well as the related and widespreadEulohmannia ribagai Berlese (Eulomannioidea, Eulohmanniidae) may live here. The latteralso has a cylindrical dichoid body, but is yellowish in colour and has a pectinate sensillus,4 pairs of anal setae, bidactyl tarsal claws, and a U-shaped scissure of soft cuticle ventrallythat runs from the posterior insertions of legs IV and between the genital and anal openings.Epilohmanniidae Oudemans, 1923Epilohmannia Berlese, 1910 (ITIS 73xxxx)Diagnostic characters: Body dichoid and more or less cylindrical; sensillus filiform to clavate(not pectinate); 3 pairs each of anal and adanal setae; monodactyl.Also Known As: Neoepilohmannia Bolen & McDaniel, 1989; Sinolohmannia Balogh &Mahunka, 1979Type species: Lohomannia [sic] cylindrica Berlese, 1904World species: ~40Comments: Osler et al. (2008) have the only published record of this genus in Alberta to date.Canadian species listed on DOC (bold = AB): Epilohmannia cylindrica (Berlese, 1904);Epilohmannia sp.Epilohmannia sp. 1 DKK (Osler et al. 2008) (xxxxxxx)Also Known As:ABMI code/Common name: EPILSP1Diagnostic characters: specimen has not been studied.Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.61

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: Epilohmannia sp. BC, QCImages:Ecology:Literature: Marshall et al. (1987); Osler et al. (2008).62

Almanac of Alberta Oribatida 2.3 13 January 2013Supercohort DesmonomatidesComments: The Supercohort Desmonomatides contains the vast majority of living species of theOribatida since it includes all of the ‘higher oribatids’, i.e. the Cohort Brachypylina, as wellas the largely parthenogenetic (thelytokous), but highly successful cohort of ‘loweroribatids, the Nothrina. As well as these traditional oribatid mites, some workers believethat the Astigmata arose here and treat that very large group as yet another cohort, theAstigmatina (see Krantz & Walter 2009 for details).Cohort NothrinaCrotonioidea Thorell, 1876 (ITIS 733350)Comments: The Crotonioidea (also known as Nothroidea) is the largest superfamily of loweroribatids in Alberta and is represented by 5 families. Four of these are keyed out below. Thefifth, Nanhermanniidae, keys in the Key to Major Groups12. Key to Families of Crotonioidea in Alberta1. Rostrum with medial incision (Fig. 12.1A); bothridium with numerous saccules; sensillus (bo)setiform, longer than interlamellar setae (in); epimere II with 3 or more pairs of setae; 9 pairsgenital setae (gs), one of which is lateral; aggenital setae (ag) absent ...... Nothridae (Nothrus)- Rostrum entire (Fig. 12.1B-C); bothridium with 0-1 saccule; sensillus setiform to clavate,usually equal to or shorter than interlamellar setae, rarely absent; epimere II with 0-1 pairs ofsetae; 4-24 pairs genital setae on medial edge of plate; aggenital setae present or absent ........ 2Figure 12.163

Almanac of Alberta Oribatida 2.3 13 January 20132. Genital setae delimited by carina (ridge); anal plates similar to or wider than adanal plates;aggenital setae present (Fig. 12.2A); body often with adherent organic debris, especially onposterior; holoid ........................................................................................................ Camisiidae- Genital setae not delimited by carina; anal plates usually much narrower than adanal plates;aggenital setae absent (Fig. 12.2B); organic debris usually patchy to absent; dichoid ............. 3Figure 12.23. Labiogenal articulation absent (Fig. 12.3 C), subcapitulum with mentum and genae insensiblyfused (anarthric); sensillus (bo) and bothridium suppressed (Fig. 12.4A); genua III-IV with 1seta; cerotegument strongly birefringent (glows under polarized light); aquatic mites........................................................................................................................Malaconothridae- Labiogenal articulation or suture present, genae either articulated to triangular mentum (i.e.stenarthric, Fig. 12.3A) as in Trhypochthonius and Mucronothrus (but incompletely so inMainothrus) or present as transverse suture (diarthric) in Trhypochthoniellus (Fig. 12.3B);sensillus present (except in Trhypochthoniellus) and bothridium cup-like (Fig. 12.4B), butreduced or vestigial in Mucronothrus and Trhypochthoniellus; genua III-IV with 2-3 setae;cerotegument not birefringent; aquatic or terrestrial mites ........................ Trhypochthoniidae64

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 12.3: Subcapitulum types: A stenarthric; B diarthric; C anarthricFigure 12.465

Almanac of Alberta Oribatida 2.3 13 January 201366Nothridae Berlese, 1896 (ITIS 733417)Nothrus CL Koch, 1835 (1836, 1840) (ITIS 733690)Diagnostic characters: rostrum with medial incision; bothridium with numerous saccules; bo(bo) setiform, longer than interlamellar setae (in); coxisterna II with 3 or more pairs ofsetae; 9 pairs genital setae, one of which is lateral; aggenital setae absent.Also Known As: Angelia Berlese, 1885; Gymnonothrus Ewing, 1917Etymology: sluggishType species: Nothrus palustris CL Koch, 1839World species: 75Comments: North American Nothrus are poorly known and require revision. At this time there isno monograph or key to the species and the literature is scattered and of variable quality.All species are composed of clonal female lineages and morphological characters may besomewhat variable. Surprisingly, the number of pretarsal claws appears to be fairly stable.Until this study, only one described species, Nothrus palustris CL Koch, was reported fromAB. That species has not yet been recollected, but at least 5 additional species are present.Nothrus species known from AlbertaNothrus spp. Claws Length bo in c2 h2 Notogaster setae/fovaepratensis 1 720-930 seta club c1 slender, 2x h1 thick / crenulateparvus 1 680-740 club club c1 thick, ~h1 thick / crenulatesp. B 2 790-860 seta club c1 slender, 2x h1 thick / angularanauniensis 3 760-880 club club c1 thick, 2x h1 thick / smooth, dirtyborussicus 3 925-1020 seta club c1 thick, 1.5x h1 thick / smoothpalustris 3 1116 seta club c3 whip-like slender / roundedInterpretations of posterior setae in Nothrus has varied among authors. I am followingSeniczak & Norton (1993): cp (= d3 of others); p1 (= ps1, pn1 of others); h2 (= h3, k1 of others).Specimens of several species have been found in the feathers of birds in Russia, a possiblemeans of long distance dispersal (see Krivolutsky & Lebedeva 2004).Canadian species listed on DOC (bold = AB): Nothrus anauniensis Can. & Fanzago, 1876; N.borussicus Sellnick; N. monodactyleus (Berlese, 1910); N. palustris CL Koch, 1839; N.pratensis Sellnick, 1928; N silvestris Nicolet, 1855; Nothrus sp.13. Key to Adults of Species of Nothrus in Canada*1. Tarsi bidactyl with thick median and one slender lateral claw (Fig. 13.1); notogastral foveaeangular, ridges narrow; setae in bushy > similar c1; c2 ~2/3rds as long, inserted about itslength from c1; le subequal in, densely barbed, acuminate; h2 long (~120), about 1/3 rdlonger than h1; p1 shorter and swollen distally; 790-860 long ........ Nothrus sp. B DEW- Either with a single median claw or three claws; other characters vary ................................ 2

Almanac of Alberta Oribatida 2.3 13 January 20132. Tarsi monodactyl with one median claw ......................................... Monodactyl species key- Tarsi tridactyl with 3 claws .................................................................. Tridactyl species key*Nothrus sp. B DEW (RAM 99000036)Also Known As: none.Figure 13.1ABMI code/Common name: NOTHSPB; Two-clawed Sluggish MiteDiagnostic characters: All tarsi bidactyl. Female ventral length 790-860. Prodorsum evenlyfoveolate and micropunctate; bothridial rachis with indistinct branches at various angles,saccules in dense brush; bo (240-250) slender, setiform, with sparsely barbed margins andsubacuminate tip; in (60-78) thick, barbed, expanded distally; le (50-63) strongly barbed,acuminate; ro (~50) sparsely barbed, tapering; ex small (~15) inserted on base ofbothridium; pore present laterad bothridium on mid-lateral prodorsum. Notogastral medianfoveae angular, ornamentation laterad carinae pebbly; notogastral setae mostly short (60-70), heavily barbed, and expanded distally, but c2 (32-37) about ½ length c1 (60-65) andinserted about its length from c1; c3 (50-60) not expanded distally; f1-2 (~80); h1 (85-92)subequal to p1 (80-90) and both expanded distally; about 2/3rds length of h2 (135-140)which is of even diameter and not expanded distally. Both cheliceral digits with 3 teeth (anddistal hook).Overview: Some authors treat bidactyl Nothrus as variants of similar tridactyl species.Barcodes:67

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Eamer (unpublished); Sellnick & Forsslund (1954),Gilyarov & Krivolutsky (1975).Similar taxa: The Nothrus silvestris Nicolet var. anauniensis C&F of Sellnick & Forsslund(1954) is bidactyl.ABMI Site Records: 2007: 330, 331, 512, 857. 2008: 344, 719, 752, 1041, BOG3. 2009: 881.2010: 1036, 1171, 1175, 1209, 1237, OG-972-1. 2011: 93, 302, 672, 968, 1105, 1137, 1138,A761-4.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444)]; Nothrus sp. reported from ON, QC, NB, NS, NFImages: SEM (331)Ecology: Parthenogenetic (thelytokous): gravid females carry up to 3 large eggs. Gut contentsprimarily composed of coarse fragments of organic matter with fungal hyphae and spores.Literature: Sellnick & Forsslund (1954); Gilyarov & Krivolutsky (1975); Marshall et al. (1987);Eamer (unpublished).14. Key to Monodactyl Nothrus species1. Median notogastral setae (c1-f1) and h1 relatively short (Fig. 14.1A) acicular to foliate or clubshaped;lamellar setae (le) shorter than distance between insertions .................................. 2- Median notogastral setae and h1 relatively long, slightly swollen distally; setae h2 very long;lamellar setae (le) relatively long, as long as or longer than distance between insertions ................................................................................................ Nothrus silvestris Nicolet, 185568Figure 14.1

Almanac of Alberta Oribatida 2.3 13 January 20132. Lamellar seta pencil-shaped or club-shaped; posterior setae all somewhat leaf-like (Fig.14.2A); ventral length usually

Almanac of Alberta Oribatida 2.3 13 January 2013*Nothrus cf pratensis Sellnick, 1929 (ITIS 736910)Also Known As: Nothrus sp. M DEW (pars)Etymology: pratensis = of the meadowABMI code/Common name: NOTHPRA / Meadow NothrusDiagnostic characters pratensis s.s.: monodactyl; ventral length variable, 720-930; setae onposterior margin of hysterosoma somewhat elongate, narrow; in short (58-70) and thick,approaching length of c1 (48-52); bo (250-285); very long, slender, smooth to sparselybarbed; claws relatively slender, open sickle-shapedDiagnostic characters ‘sp. M’: monodactyl; ventral length 780-820; setae on posterior marginof hysterosoma short, expanded (truncatus group); in (65-75) thick, somewhat expandeddistally, about twice length c1 (30-40); bo (225-285) sparsely barbed along margin; le (33)tapering; claw may have pronounced hook.Overview: The type has been destroyed (Marshall et al. 1987).Barcodes: 324 (658x4); 325 (595, 600, 602, 620, 658); 384 (658x6); 444 (642, 658); 1036(658x4)ID Check: Determination by DEW based on Eamer (unpublished); Sellnick & Forsslund (1954),Gilyarov & Krivolutsky (1975) and Barcodes. Originally, two species were recognizedbased on body and setal lengths. However, the two size-morphs commonly co-occur andfurther study (including SEM) could find no distinctive character to separate them.Furthermore, the barcodes of identified mites, while showing the diversity of differenthaplotypes characteristic of parthenogenetic species, do clump together and areintermingled. Therefore, from 2011 on, sp. M has been subsumed into pratensis.Similar taxa: N. monodactyleus (Berlese, 1910)ABMI Site Records: as pratensis: 2007: 277, 390, 515, 545, 585, 601, 631, 633, 665, 791,BOG5, BOG6, BOG7. 2008: 444, 901, BOG4. 2009: 14, 506, 529, 530, 697. 2010: 325,352, 384, 10361170, OG-972-1. 2011: 332, 391, 392, 451, 483, 604, 608, 1003, 1071, 1106,A608-2, A761-4.ABMI Site Records: as sp. M: 2007: 390, 515, 544, 574, 585, 631, 631, 633, 663, 665, 791, 823,BOG6, BOG7. 2008: 444, 901, FM07. 2009: 1, 529, 530, 537, 560, 570, 883. 2010: 324,325, 352, 354, 383, 384, 1036, 1170. 2011: none = combined with pratensis.DOC (1/2008): [+other] Distribution: YT, NU, NT, QC, NF, [AK, Holarctic]Images: SEM (352, 444)Ecology: Parthenogenetic (thelytokous); gravid females carry up to 2 large eggs. Gut bolus ofcoarse organic material or hyphae.Literature: Sellnick & Forsslund (1954); Hammer (1955, 1967); Gilyarov & Krivolutsky (1975);Marshall et al. (1987); Eamer (unpublished).70

Almanac of Alberta Oribatida 2.3 13 January 2013Nothrus pratensis Sellnick, 1929**Nothrus parvus Sitnikova, 1975 (RAM 99000092)Also Known As: Nothrus pulchellus (Berlese, 1910) in Subías 2008.ABMI code/Common name: NOTHPAR / Petite NothrusDiagnostic characters: monodactyl; ventral length 680-740; setae on posterior margin ofhysterosoma short, expanded (truncatus group); claw may have pronounced hook; in (50)expanded, densely barbed, le (33) club-like, bo (138) with denticulate margins, notogastralfoveae with crenulate interior marginsOverview:Barcodes:ID Check: Determination by DEW based on Eamer (unpublished); Sellnick & Forsslund (1954),Gilyarov & Krivolutsky (1975). 1224 NW 1 checked by VBP October 2008.Similar taxa:ABMI Site Records: 2007: none. 2008: 1224. 2009: none. 2010: none. 2011: 1125.DOC (1/2008): [+other] Distribution: Nothrus sp. reported from ON, QC, NB, NS, NFImages:Ecology: Parthenogenetic (thelytokous)Literature: Sellnick & Forsslund (1954); Gilyarov & Krivolutsky (1975); Eamer (unpublished).71

Almanac of Alberta Oribatida 2.3 13 January 201315. Tridactyl Nothrus species1. Setae h2 very long, whip-like, ~half length of body; setae c2 inserted near c3; very large mites(1116 µm) (Fig. 15.1A) ................................................. Nothrus palustris CL Koch, 1839- Setae h2 much shorter, expanded; setae c2 inserted distant from c3 (Fig. 15.1B) ................ 2Figure 15.12. Setae on posterior margin leaf-like to club-shaped; in strongly club-like; le thick, not tapering;bo slightly swollen distally, not acuminate; often with adherent debris; grey brown, 750-880long (Fig. 15.2A; 15.4) ...................... Nothrus anauniensis Canestrini & Fanzago, 1876- Setae on posterior margin longer, fine, bacilliform; sensillus seta-like, not swollen distally;other characters vary (Fig. 15.2B) ....................................................................................... 372Figure 15.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Setae h2~p1, both elongate ( ~1/4 th body length) and not expanded distally; in strongly leaflike,le very short, leaf-like; ridges of median notogastral foveae smooth (Fig. 15.3A) ................................................................................................ Nothrus quadripilus Ewing, 1909- Setae h2, p1 much less than 1/4th body length, slightly expanded at tips; in narrow, denselybarbed, le barbed and tapering distally; ridges of median notogastral foveae rough; red brown,(805) 925-1020 long (Fig. 15.3B) ................................ Nothrus borussicus Sellnick, 1928Figure 15.3Figure 15.473

Almanac of Alberta Oribatida 2.3 13 January 2013*Nothrus anauniensis Canestrini & Fanzago, 1876 (ITIS 736859)Also Known As: Nothrus biciliatus Koch sensu Sellnick & Forsslund; NOT Nothrus anauniensissensu Berlese, 1885 (=Nothrus silvestris Nicolet, 1855)ABMI code/Common name: NOTHANA / Dirty NothrusDiagnostic characters: All tarsi tridactyl. Female ventral length 760-880 long. bo setiform withsmall, barbed distal swelling; c2 slightly anterior to c1; posterior margin rounded, setaeshort or medium, expanded distally; ridges of median notogastral foveae smooth; often withadherent debris.Overview: The type is lost (Marshall et al. 1987). This species has often been confused in theliterature.Barcodes:ID Check: Determination by DEW based on Eamer (unpublished); Sellnick & Forsslund (1954),Gilyarov & Krivolutsky (1975), SEMs on DOC, and comments by RAN.Similar taxa: Nothrus borussicus Sellnick (see key).ABMI Site Records: 2007: 1252. 2008: 1009, 1222. 2009: none. 2010: 924, 1471, 1538. 2011:990, 1016, 1022, 1056, 1057, 1058, 1125, 1157, 1158, 1218, 1332, 1623.DOC (1/2008): [+other] Distribution: QC, NF; [Edmonton (Parkallen), Meanook; Cosmopolitan]Images: SEM from Meanook.Ecology: Parthenogenetic (thelytokous). A widely distributed and eurytopic mite frommesophilous habitats, bogs, wet forests, compost, and the like. Specimens may have beenfound in the feathers of birds in Russia under the name Nothrus biciliatus, a possible meansof long distance dispersal (see Krivolutsky & Lebedeva 2004).Literature: Hammer (1955); Sellnick & Forsslund (1954) [NB – as Nothrus biciliatus]; Marshallet al. (1987); Behan-Pelletier & Bissett (1994); Eamer (unpublished).*Nothrus borussicus Sellnick, 1928 (ITIS 736868)Also Known As: Nothrus biciliatus sensu Trägårdh, 1904; Nothrus silvestris sensu Jorgensen,1934.ABMI code/Common name: NOTHBORDiagnostic characters: Female ventral length 925-1020. All tarsi tridactyl. Prodorsum evenlyfoveolate and micropunctate; bo (250) setiform, bothridium with numerous short (4)saccules at right angles to median rachis; in (70) narrow, densely barbed, only slightlyexpanded distally; le (60) densely barbed and tapering acuminate distally; ex (20-25)barbed, acuminate, inserted on base of bothridium. Notogastral foveae rough, angular tosubrosettiform; most notogastral setae and +/- parallel-sided; setae c1 (~70) narrow, c2 (42)narrow to expanded distally, c3 (~100) narrow; h1 (~100-110), h2 (~145-180), p1 (~90-145) all narrow and not expanded distally.Overview: The type has been destroyed (Marshall et al. 1987).74

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: Determination by DEW based on Eamer (unpublished); Sellnick & Forsslund (1954),Gilyarov & Krivolutsky (1975).Similar taxa: Nothrus anauniensis Canestrini & Fanzago (see key). Nothrus silvestris Nicolet,1855.ABMI Site Records: 2007: 330, 585, 1070, BOG7. 2008: 443, 473, 1190. 2009: 1, 32, 33, 498,698, 699, 761, 881. 2010: 151, 382, 1142, ALPAC-16, OG-1171-1. 2011: 64, 65, 93, 242,452, 1126, 1137, 1334, A635-1.DOC (1/2008): [+other] Distribution: YT, NU, NT, MB, [AK, Holarctic]Images:Ecology: Parthenogenetic (thelytokous): gravid females can carry at least 4 large eggs. Gutcontents consist of coarse fragments of organic material and fungal hyphae.Literature: Hammer (1952, 1967); Sellnick & Forsslund (1954); Marshall et al. (1987).Nothrus palustris C.L. Koch, 1839Also Known As: Angelia palustris (CL Koch, 1839)ABMI code/Common name: NOTHPALDiagnostic characters: tridactyl; setae h2 very long, whip-like, ~half length of body; setae c2inserted near c3; large mitesOverview: The type is lost (Marshall et al. 1987).Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, NF, [AK, Holarctic]Images:Ecology: Schneider (2005) placed this mite in the primary decomposer feeding guild (i.e. feedsmostly on litter). Parthenogenetic (thelytokous). Specimens have been found in the feathersof birds in Russia, a possible means of long distance dispersal (see Krivolutsky & Lebedeva2004).Literature: Sellnick & Forsslund (1954); Hammer (1967); Marshall et al. (1987).Back to Table of Contents75

Almanac of Alberta Oribatida 2.3 13 January 2013Camisiidae Oudemans, 1900 (ITIS 733418)Comments: Species placement for the genera Heminothrus Berlese, 1913 and PlatynothrusBerlese, 1913 vary among authors. For consistency, I have placed the Alberta species in thegenus to which they key out below.16. Key to the Genera of Camisiidae in Canada1. Pre-anal plate distinct; 9-24 pairs of genital setae, 2 pairs anal setae, 2 pairs aggenital setae onmedial edge of plate; pretarsi usually monodactyl (Fig. 16.1A) ............................................... 2- Pre-anal plate poorly expressed; 9 pairs of genital setae, 3 pairs anal setae, 2 pairs aggenitalsetae in soft cuticle; pretarsi tridactyl or monodactyl (Fig. 16.1B) Camisia von Heyden, 1826Figure 16.12. Body often with a thick coating of adherent organic debris; notogastral carinae absent;posterior setae inserted on distinct apophyses (short on H. thori); no saccules at base ofbothridium (Fig. 16.2A) ................................................................ Heminothrus Berlese, 1913- Debris usually more dispersed/diffuse or restricted to posterior; median notogastral carinaeusually present, dorso-central setae variable in length; posterior setae sessile or on shorttubercles; bothridial saccules present (Fig. 16.2B).................................................................... 376

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 16.23. Setiform setae d1, e1 inserted laterad median carinae (carinae may be weak or absent); genitalplates often divided (Fig. 16.3A) .................................................... Platynothrus Berlese, 1913- Sublanceolate setae d1, e1 inserted between median carinae; genital plates entire (Fig. 16.3B) ........................................................................................ Neonothrus humicola Forsslund, 1955Figure 16.377

Almanac of Alberta Oribatida 2.3 13 January 2013Camisia von Heyden, 1826 (ITIS 733694)Diagnostic characters: genital setae delimited by carina; anal plates similar to or wider thanadanal plates; aggenital setae present; body often with adherent organic debris; pre-analplate poorly expressed; 9 pairs of genital setae, 3 pairs anal setae, 2 pairs aggenital setae insoft cuticle; pretarsi tridactyl or monodactylAlso Known As: Uronothrus Berlese, 1913Etymology: Camisia = Latin for shirt or nightgown, presumably from the waxy coating.Type species: Notaspis segnis Hermann, 1804World species: 34Comments: Species of Camisia appear to be primarily arboreal or epilithic mites, so they are rarein ABMI soil organic collections. Camisia (Camisia) Heyden, 1826 (ITIS 734654)Canadian species listed on DOC (bold = AB): Camisia abdosensilla Olszanowski et al, 2002; C.biurus (C.L. Koch, 1839); C. dictyna Colloff, 1993; C. foveolata Hammer, 1955; C.horrida (Hermann, 1804); C. lapponica (Trägårdh, 1910); C. oregonae Colloff, 1993; C.orthogonia Olszanowski et al, 2001; C. segnis (Hermann, 1804); Camisia sp.; C. spinifer(C.L. Koch, 1835)17. Key to adult Camisia in or near Alberta1. Marginal notogastral setae mostly short, sessile; only h2 may be on a strong apophysis (Fig.17.1A) 2- All marginal notogastral setae whip-like, inserted on strong apophyses; ventral length 950,tridactyl (Fig. 17.1 B) ....................................................... Camisia spinifer (C.L. Koch, 1835)78Figure 17.1

Almanac of Alberta Oribatida 2.3 13 January 20132. Setae h2 inserted on or near corners of notogaster, not associated with lateral lobe-like processor exuvial remnants (Fig. 17.2A)............................................................................................... 4- Setae h2 inserted on apophyses mediad a small or large lobe-like lateral process which may becovered by remnant of tritonymphal exuviae (Fig. 17.2B) ....................................................... 3Figure 17.23. Lateral notogastral tubercle lobe-like; tritonymphal exuviae absent; seta c3~c1; d1-2 longerthan e1 (Fig. 17.3A) .......... Camisia orthogonia Olszanowski, Szywilewska & Norton, 2001- Lateral notogastral tubercle small; tritonymphal exuviae usually retained; seta c3 shorter thanc1; d1-2 slightly shorter than e1 (Fig 17.3B)...................... Camisia biurus (C.L. Koch, 1839)79Figure17.3

Almanac of Alberta Oribatida 2.3 13 January 20134. Interlamellar setae minute (Fig.17.4A) ........................................................................................ 5- Interlamellar setae well developed, reaching half or more the distance to the insertion of thelamellar setae (Fig. 17.4B) ........................................................................................................ 6Figure 17.45. Posterior notogastral seta h2 (105-110) inserted on short apophysis distant from the posteriorcorner of notogaster; setae p1 each inserted in a funnel-like recess and relatively close to eachother; transverse median ridge absent between setae e1 (Fig. 17.5A) .............................................................................................................................. Camisia biverrucata (CL Koch, 1839)- Seta h2 on short apophysis near posterior corner of notogaster; setae p1 inserted on posteriorshelf relatively widely separated; transverse carina present between setae e1 (Fig. 17.5B) ................................................................................................... Camisia horrida (Hermann, 1804)Figure 17.580

Almanac of Alberta Oribatida 2.3 13 January 20136. Monodactyl; posterior notogastral margin with caudal ledge bearing setae p1; notogastral setaeat least somewhat expanded to leaf-shaped; in sessile, reaching only about ½ distance toinsertion of le (Fig. 17.6A) ........................................................................................................ 7- Tridactyl; posterior notogastral margin concave between setae h2, caudal ledge absent;notogastral setae setiform; interlamellar setae on short apophyses, elongate and reachinginsertion of lamellar setae (Fig. 17.6B) ................................ Camisia segnis (Hermann, 1804)Figure 17.67. Interlamellar seta +/- setiform; notogastral setae somewhat expanded, +/- gladius-shaped, h1much shorter than others; usually with 9 pairs of genital setae (Fig. 17.7A) ............................ 8- Interlamellar seta and notogastral setae phylliform; h1 (=f1 in Behan 1978) subequal in lengthand width to others; usually with >9 (11-14) pairs of genital setae (Fig. 17.7B) .................................................................................................................. Camisia lapponica (Trägårdh, 1910)81Fig. 17.7

Almanac of Alberta Oribatida 2.3 13 January 20138. Notogastral seta h1 somewhat shorter than others .............................................................................................................................................. Camisia sp. 1 DEW (nr. solhoeyi Colloff, 1993)- Notogastral seta h1 less than half length of others ....................... Camisia solhoeyi Colloff, 1993Camisia biurus (CL Koch, 1839) (ITIS 736941)Also Known As: Nothrus biurus CL Koch, 1839; Uronothrus kochi Willmann, 1943; Camisiasegnis sensu Sellnick, 1928.ABMI code/Common name: CAMIBIU; Twice-stung Nightgown MiteDiagnostic characters: length 990-1000; h2 spiniform, apophyses with lateral tubercle;tritonymphal cuticle carried posteriorly; tridactylOverview: Camisia orthogonia Olszanowski, Szywilewska & Norton, 2001Barcodes:ID Check: Determination by DEW based on Colloff (1993), Weigmann (2006).Similar taxa: Camisia orthogonia Olszanowski, Szywilewska & Norton, 2001ABMI Site Records: 2007: 331, 484, 515, 544, 585, 631, 792, 1068. 2008: 443, 751, FM06,SL21. 2009: 1, 537. 2010: 151, 324, 909. 2011: 996, A761-4.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, NB, NS, NF, [AK, Holarctic]; CNC:Cypress HillsImages:Ecology: Parthenogenetic (thelytokous). A xerophilous mite found in peatlands; moss on rottenwood; grass moss turf; mixed pine-poplar litter;Literature: Sellnick & Forsslund (1954); Hammer (1967); Marshall et al. (1987); Colloff (1993);Behan-Pelletier & Bissett (1994)82

Almanac of Alberta Oribatida 2.3 13 January 2013**Camisia biverrucata (CL Koch, 1839) (ITIS 736942)Also Known As: Nothrus biverrucata CL Koch, 1839; Camisia biverrucata (CL Koch, 1839);Camisia fischeri Oudemans, 1900; Nothrus horridus sensu Nicolet, 1855.ABMI code/Common name: CAMIBIV; Twin Butte Nightgown Mite; Double-wartedNightgown MiteDiagnostic characters: 870-1130 long; ro (35) distally pilose; le (70-75) barbed on tubercles(70); in minute; bo (60) short, with large club (20x25); c1 (50-55) densely spinose; d1 (20-25) barbed, e1 (30) barbed; h1 (60-65) densely spinose, both inserted in funnel-like recess,h1-h1 (100); h2 (105-110) on short tubercle in right angle of notogaster; notogastral cuticlewith dense, low, rounded tubercles; prodorsal ridge not branched basally; tridactylOverview:Barcodes:ID Check: Determination by DEW based on Colloff (1993), Weigmann (2006). 1620 NE, 1620NW checked by VBP April 2008.Similar taxa: Camisia horrida (Hermann, 1804).ABMI Site Records: 2007: 585, 792, 1526, 1601, 1602, 1620. 2008: 344, 1192, 1223, 1635.2009: 34, 32, 539, 72L-1, 72L2-2, 72L-3, 72L-4, 72L-5, 72M-1, 72M-2, 72M-3, 72M-5,72M-6, 82H-2, 82H-5. 2010: none. 2011: 302, 996, 1092, 1125, 1125, 1232, 1334, 1437,1438, 1439, 1439, 1461, 1561, 1605, OG-1122-1, OG-1282-1, OG-1283-1, OG-1334-1,OG-1455-1.DOC (1/2008): [+other] Distribution: [AK, Holarctic]; [CNC: Writing-on-Stone PP; CypressHills; Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)]Images: SEM (MP)Ecology: This mite was originally described from Europe and has a circumboreal distribution.Most mites in this genus are more or less arboreal and this species has been collected fromprairie grass and sod; moss on rotten wood; juniper litter; vertical moss mats; and spruceduff in Canada. Only females are known and the mite reproduces by parthenogenesis.Gravid females carry at least 6 eggs and the eggs may contain fully developed prelarvae.Gut contents include coarse dark organic matter with some fragments of hyphae and spores.Literature: Sellnick & Forsslund (1954); Hammer (1955); Marshall et al. (1987); Colloff (1993)Camisia horrida (Hermann, 1804) (ITIS 736951)Also Known As: Notaspis horridus Helmann, 1804; Nothrus rugulosus Banks, 1895; andnumerous incarnations in CL Koch (1839) (see Marshall et al. 1987).ABMI code/Common name: CAMIHOR; the Horrid Nightgown MiteDiagnostic characters: 830 long; bo short (55) with strong globose club (15-20); in minute; le(70) strongly barbed, on tubercle (40-45); ro slender (35-40); setae h1 (~100) barbed,strongly curled, on short tubercles (20); h1-h1 (80-85) on shelf; h2 on short tubercle in83

Almanac of Alberta Oribatida 2.3 13 January 2013oblique angle of notogaster; prodorsal ridge Y-shaped; c1 (30) barbed, d1 (30) tapering, e1(30) tapering; tridactylOverview: This species has been very rare in Alberta collections to date.Barcodes:ID Check: Determination by DEW based on Colloff (1993) and Weigmann (2006). 330 NWchecked by VBP April 2008.Similar taxa: Camisia biverrucata (CL Koch, 1839) has a pair of funnel-like processesposteriorly, rather than a shelf.ABMI Site Records: 2007: 330. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, MB, ON, QC, NB, NF; [AK, Holarctic]:CNC: Cypress Hills; Kananaskis; Jasper to 7000’Images:Ecology: Parthenogenetic (thelytokous): gravid females carry up to 7 eggs. This mite has beencollected from moss and rotten wood; moss on rocks; fallen squirrel nest; bracket fungi onfir; liverwort mat; mixed pine-poplar litter; dryas mat; and bracket fungi. Winchester et al.(1996-2007) report it from branch and lichen samples from amabilis fir and westernhemlock on Vancouver Island. Sobel et al. (2008) found a few specimens of C. horrida inthe canopy of larch and spruce in a mixed temperate forest in Switzerland. Specimens havebeen found in the feathers of birds in Russia, a possible means of long distance dispersal(see Krivolutsky & Lebedeva 2004).Literature: Sellnick & Forsslund (1954); Hammer (1955); Marshall et al. (1987); Colloff (1993)*Camisia orthogonia Olszanowski, Szywilewska & Norton, 2001 (ITIS 73xxxx)Also Known As: none.ABMI code/Common name: CAMIORT; the Orthogonal Nightgown MiteDiagnostic characters: 1190-1220 (1249) long; rostrum rounded; c3 as long as c1; h3ventrolateral; tritonymphal exuviae absent; postero-lateral corner with large rounded lobe;Overview: long, narrow and large miteBarcodes:ID Check: Determination by VBP based on Olszanowski et al. (2001).Similar taxa: Camisia biurus (CL Koch, 1839)ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: BC, WA, OR, CA, CO, WY, NM, AZ; [CNC: Banff].Images:Ecology: Parthenogenetic (thelytokous). Gravid females carry 5-7 eggs (some with prelarvae). InAlberta this mite was collected in pine and fir litter.Literature: Olszanowski et al. (2001)84

Almanac of Alberta Oribatida 2.3 13 January 2013*Camisia segnis (Hermann, 1804) (ITIS 73xxxx)Also Known As: Notaspis segnis Hermann, 1804; Uronothrus segnis (Hermann, 1804); Nothrusexcisus Banks, 1895; and numerous incarnations in CL Koch (1839, 1844) (see Marshall etal. 1987).ABMI code/Common name: CAMISEG; the Sluggish Nightgown MiteDiagnostic characters: length 830-880; notogaster tuberculate (~5 dia.) with well developedmedian and posterior transverse carinae; anterior notogastral setae short, curled, acuminatewith a few barbs, f1-2 more strongly barbed, h2-3 long, curled, heavily barbed basally,acuminate distally; bo (~70) short, with smoothly globose club; prodorsum micropunctate;in (~165) on short apophysis, reaching base of lamellar apophysis; le pectinate barbed, onapophysis that passes rostrum; ro (~38) straight, lightly barbed; epimeral setation 3-1-2-3; 9pairs genital setae; tridactylOverview: To date this has been collected only at the Moose Pasture Research Site 8 km WChipman, AB Benchmark Site in Alberta.Barcodes:ID Check: Determination by DEW based on Colloff (1993) and Weigmann (2006).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: NU, NT, QC, NB, NS [Moose Pasture Research Site 8 kmW Chipman, AB (53.656667, -112.759444) 13 May 08, Nook Knoll; BC]Images:Ecology: Parthenogenetic (thelytokous), gravid females carry up to 6 eggs. Winchester et al.(1996-2007) report it from branch and lichen samples from amabilis fir and westernhemlock and from the forest floor on Vancouver Island. Lindo (2004-2007) reported thisspecies from western red cedar forest floor in the Walbran Valley of Vancouver Island.Sobel et al. (2008) found C. segnis to be fairly common in the canopy of oak, larch andspruce in a mixed temperate forest in Switzerland. This mite was reported as occurring inthe hair of small mammals in Slovakia, a possible means of local dispersal, by Miko &Stanko (1991).Literature: Marshall et al. (1987); Colloff (1993)***Camisia sp. 1 DEW (RAM 99000078)Also Known As: Camisia lapponica (Trägårdh, 1910) sensu Hammer (1952)ABMI code/Common name: CAMISP1Diagnostic characters: length 690-750; notogastral setae blade-like (65-78), smooth or with afew serrations, but h1 (=f1 of Behan 1978) (35-50) more slender than other notogastralsetae, h2 very long (85-95), c1 (50-55) blade-like; bo (50-55) short, with smoothly spoonlikeclub; prodorsum foveolate between parallel ridges; in (55-63) similar to notogastral85

Almanac of Alberta Oribatida 2.3 13 January 2013setae; le (60-65) straight, barbed, on short (20) tubercles; ro (50) with a few barbs; epimeralsetation 3-1-3(4)-3; 9 pairs genital setae (CNC specimen from Jasper has 15-16 pairs ofgenital setae); monodactyl.Overview: This relatively small (~0.7 mm in length) monodactyl species of Camisia is somewhatintermediate between the Holarctic C. lapponica (=labradorica Behan 1978) and thePalearctic C. solhoeyi, but may be best accommodated in the latter species.Barcodes:ID Check: Determination by DEW based on Colloff (1993), Weigmann (2006). 390 SE checkedby VBP April 2008.Similar taxa: Camisia lapponica (Trägårdh, 1910) reported from NU, NT, QC, NF, has stronglyphylliform notogastral setae (nipple-like tips) and (11-)14 pairs of genital setae. However,the illustration of C. lapponica in Hammer (1952) appears to represent sp. 1 DEW. C.solhoeyi Colloff, 1993 is very similar, but has a much reduced seta h1, while the ABspecimens have h1 similar to others.ABMI Site Records: 2007: 216, 358, 390, 545, 791. 2008: none. 2009: 1, 2, 13, 528. 2010: 383,384. 2011: 64, 93, 302, 391, 422, 995, 997, 1029, 1031, A608-2, A635-1 .DOC (1/2008): [+other] Distribution: [C. solhoeyi Colloff, 1993 was described from Norway,Sweden, Poland, and Austria]; [CNC: Jasper]; Camisia sp. reported from AB, BC, MB, QC,NS, NF.Images:Ecology: Parthenogenetic (thelytokous). Gut contents appear to be amorphous, bolus lacking (12specimens).Literature: Colloff (1993)Camisia spinifer (CL Koch, 1835) (ITIS 736960)Also Known As: Nothrus spinifer CL Koch, 1835; Nothrus taurinus Banks, 1906.ABMI code/Common name: CAMISPIDiagnostic characters: length 950; dorsal setae very long, inserted on long tubercles; tridactyl; 9pairs genital setaeOverview: In Alberta, other than the one ABMI collection, this species is represented by only afew CNC collections.Barcodes:ID Check: Determination by DEW based on Colloff (1993) and Weigmann (2006).Similar taxa:ABMI Site Records: 2007: 248. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, YT; [AK, Holarctic]; CNC: Cypress HillsImages:86

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: Parthenogenetic (thelytokous). Gut boli have coarse organic material; xerophilous,peatlands. In Alberta, CNC records this mite from lodgepole pine litter and mixed pinelitter. Specimens have been found in the feathers of birds in Russia, a possible means oflong distance dispersal (see Krivolutsky & Lebedeva 2004). This mite also was reported asoccurring in the hair of small mammals in Slovakia, a possible means of local dispersal, byMiko & Stanko (1991).Literature: Sellnick & Forsslund (1954); Hammer (1955); Marshall et al. (1987); Colloff (1993);Behan-Pelletier & Bissett (1994)Back to Table of ContentsHeminothrus Berlese, 1913 (ITIS 733695)Diagnostic characters: genital setae delimited by carina; anal plates similar to or wider thanadanal plates; aggenital setae present; body often with adherent organic debris; pre-analplate distinct; 9-24 pairs of genital setae, 2 pairs anal setae, 2 pairs aggenital setae on medialedge of plate; pretarsi usually monodactyl; body usually with a thick coating of adherentorganic debris; median notogastral carinae absent & dorso-central setae (d1, d2, e1)relatively short or carinae present & dorso-central setae longer than distance to nextinsertion; posterior setae inserted on apophyses that are longer than wide; no saccules atbase of bothridium.Also Known As: Heminothrus (Heminothrus) (ITIS 734656) vs Heminothrus (Platynothrus) (ITIS734658).Type species: Nothrus targionii Berlese, 1885World species: 13Comments: Some authors subsume Platynothrus into Heminothrus and those that do not vary inthe placement of many species between the two genera.Canadian species listed on DOC (bold = AB): Heminothrus longisetosus Willmann, 1925; H.Aoki, 1969; Heminothrus sp.; H. targionii (Berlese, 1885); H. thori (Berlese, 1904) ABMB NF18. Key to adult Heminothrus in Canada1. Sensillus linear to slightly expanded distally; prodorsum foveolate (Fig. 18.1A) ...................... 2- Sensillus with rhombic head; prodorsum finely punctate, without foveae (Fig. 18.1B)................................................................................................................. Heminothrus minor Aoki, 196987

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 18.12. Posterior tubercles longer than wide; median notogastral setae relatively short, not passing nextseta in series (Fig. 18.2A) .......................................................................................................... 3- Posterior tubercles about as long as wide; median notogastral setae very long, passing next setain series (Fig. 18.2B) .......................................................... Heminothrus thori (Berlese, 1904)Figure 18.288

Almanac of Alberta Oribatida 2.3 13 January 20133. Setae on margins of notogaster long, extending well beyond next seta in series; epimere IVseparated by soft cuticle; 675 long; AK, AB, QC; Palearctic (Fig. 18.3A) ..............................................................................................................Heminothrus longisetosus Willmann, 1925- Setae on margins of notogaster shorter, just passing next seta in series; epimere IV fusedmedially; 936-972 long; MB, ON, QC; Palearctic (Fig. 18.3B) ......................................................................................................................................Heminothrus targionii (Berlese, 1885)Figure 18.3*Heminothrus longisetosus Willmann, 1925 (ITIS 736975)Also Known As: Heminothrus paolianus longisetosus Willmann, 1925ABMI code/Common name: HEMILON / Long-haired Flat-NothrusDiagnostic characters: length 650-730, organic material adherent over most of legs and body;prodorsum foveolate and micropunctate, bo (140-150) setiform, biserrate through most oflength, bothridium microtuberculate on medial wall; in (~130) sinuate, barbed, reachingbase of lamellar tubercles (~35 long), le (~120) densely barbed, tips curve mediad; ro(~100) barbed, tapering; notogaster smooth, c1-c1 (55-70), e1-e1 (100-105); c1 (55), c3(230), setae on margins of notogaster very long, extending well beyond next seta in series;epimere IV separated by soft cuticle; 10 pairs genital setaeOverview: The only common Heminothrus in Alberta.Barcodes: 374 (658), 413 (658 x 3), 1041 (658 x 2)ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975), Weigmann (2006).Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444) specimenschecked by RAN.Similar taxa: H. minor has a finely punctate prodorsum, short bo with distinct rhombic head, andc1-c1 wider than e1-e189

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: 2007: 216, 276, 277, 330, 331, 358, 360, 388, 389, 390, 484, 545, 576, 585,601, 1068, 1070, 1101, 1103, BOG7. 2008: 374, 413, 443, 472, 688, 752, 975, 1041, 1402,BOG3, FM07, SL18, SL21. 2009: 3, 32, 33, 508, 537, 559, 561, 568, 697, 698, 728, 759,760, 882. 2010: 352, 384, 877, 909, 1037, 1237, ALPAC-16, OG-1069-1, OG-1171-1, OG-972-1. 2011: 65, 122, 361, 391, 451, 604, 995, 996, 997, 1031, 1071, 1138, A608-2, A7,OG-1283-1.DOC (1/2008): [+other] Distribution: YT, QC, NS, NF, [AK, Holarctic; Moose Pasture ResearchSite 8 km W Chipman, AB (53.656667, -112.759444)]; CNC: Cypress Hills, lodgepole pineImages: SEM (975)Ecology: Parthenogenetic (thelytokous): gravid females carry up to 5 eggs. Gut boli containorganic particles, some hyphal fragments and spores.Literature: Hammer (1955); Marshall et al. (1987).Heminothrus minor Aoki, 1969Also Known As: Heminothrus (Heminothrus) minor Aoki, 1969ABMI code/Common name: HEMIMINDiagnostic characters: length 530-550; prodorsum finely punctate, without foveae; ro barbed,on small tubercles, curved mediad-ventrad; le rough, curved mediad to form U, on longtubercles; in simple length ~distance in-in; bo short with distinct rhombic head; anteriorand median notogastral setae short (>35), fine, c1 shorter than distance c1-c1; marginalsetae sword-shaped, passing insertion of next seta in series; 9 pairs genital setae.Overview: The only published record for this species in North America was reported by Lindo &Visser (2004).Barcodes:ID Check: Voucher specimen has not been studied.Similar taxa: H. longisetosus has long, setiform bo, foveolate prodorsum, ro short, acicular, c1-c1 much less than e1-e1ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB [EMEND (56.46, -118.22); Japan]Images:Ecology: Described from subalpine coniferous forest (1750 m), central Honshu.Literature: Aoki (1969); Lindo & Visser (2004)Heminothrus thori (Berlese, 1904) (ITIS 73xxxx)Also Known As: Angelia thori Berlese, 1904; Platynothrus thori (Berlese, 1904)ABMI code/Common name: HEMITHO90

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: length 954-1010; bo long, in very long; notogaster irregularly punctuatemedially; seta f1 absent; 11-14 genital setae; posterior setae on very short tubercles.Overview: This species is treated as Heminothrus thori (Berlese, 1904) on DOC and in Marshallet al. (1987) and I am following those authorities here.Barcodes: BOG2 (658)ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006);and identified specimens in CNC April 2008.Similar taxa: see Heminothrus (Platynothrus) targionii (Berlese) in key.ABMI Site Records: 2007: none. 2008: BOG2. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, MB, NF [misidentification]; [Holarctic; CNC: NB,ON].Images:Ecology: Parthenogenetic (thelytokous). Specimens [as Platynothrus] have been found in thefeathers of birds in Russia, a possible means of long distance dispersal (see Krivolutsky &Lebedeva 2004).Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann (2006).*Heminothrus targionii (Berlese, 1885) (ITIS 73xxxx)Also Known As: Nothrus targionii Berlese, 1885; Platynothrus targionii (Berlese, 1885);Nothrus princeps Berlese, 1916.ABMI code/Common name: HEMITARDiagnostic characters: Prodorsum foveolate; sensillus linear; in tapering, reaching >1/2 distanceto lamellar apophyses. Notogaster with leather-like pattern of raised cells; all setae onapophyses: median setae short; marginal setae curved, just passing next seta in series;posterior setae elongate on large conical apophyses. Epimere IV fused medially; 936-972long.Overview: This species is treated as Heminothrus targionii (Berlese, 1885) on DOC and inMarshall et al. (1987) and I am following those authorities here.Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).Similar taxa: see Heminothrus (Platynothrus) thori.ABMI Site Records: 2007: none. 2008: none. 2009: 1510. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: MB, ON, QC; [Holarctic].Images:Ecology: Parthenogenetic (thelytokous).Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann (2006).91

Almanac of Alberta Oribatida 2.3 13 January 2013Neonothrus Forsslund, 1955 (UBIO 94437065)Diagnostic characters: genital setae delimited by carina; body often with adherent organicdebris; pre-anal plate distinct; 2 pairs aggenital setae on medial edge of plate; pretarsimonodactyl; median notogastral carinae present, dorso-central setae relatively short;posterior setae sessile or on short tubercles; bothridial saccules present; sublanceolate setaed1, e1 inserted between median carinae; genital plates entireAlso Known As: some people treat this species as a member of Heminothrus Berlese, 1913Type species: Neonothrus humicolus Forsslund, 1955World species: 1Comments: This genus is monotyic and the species is widespread, but it has not been previouslyreported from Canada.Canadian species listed on DOC (bold = AB): not reported in Canada**Neonothrus humicola Forsslund, 1955 (UBIO 96796475)Also Known As: Neonothrus humicolus Forsslund, 1955; Heminothrus humicola (Forsslund,1955); Heminothrus (Platynothrus) humicola (Forsslund, 1955).ABMI code/Common name: NEONHUMDiagnostic characters: length 600-700; prodorsum strongly foveolate; bo (125-135) setiform,biserrate for most of length; le (90); ro (32-38) somewhat flattened, densely speculate;notogastral setae sublanceolate, c1 (~80), d1 (60-65)Overview:Barcodes: 412 (649), 413 (635, 638, 643)ID Check: Determination by DEW based on Sellnick & Forsslund (1954). 331 NE checked byVBP April 2008.Similar taxa: see Camisia sp. 1 DEWABMI Site Records: 2007: 276, 330, 331, 358, 360, 389, 512, 543, 574, 576, 585, 1068, 1102,1103. 2008: 412, 413, 414, 443, 444, 472, 720, 721, 752, 901, 1007, SL13, SL18, SL21.2009: 568, 697, 728, 1529. 2010: 151, 354, 383, 877, 910, 1035, 1037, 1170, OG-972-1.,OG-910-2, OG-943-1,OG-1037-1, OG-1171-1. 2011: 64, 122, 302, 332, 362, 422, 482,962, 968, 995, 997, 1002, 1030, 1031, 1105, 1138, 1233, 1262, A761-2, A761-4.DOC (1/2008): [+other] Distribution: [AK, Holarctic]; CNC: QC, Labrador (W Knob Lake,B&W spruce)Images:Ecology: Parthenogenetic (thelytokous): gravid females carry 1-2 eggs. Gut boli have coarseorganic matter, including some fungal hyphae.Literature: Sellnick & Forsslund (1954); Bloszyk & Olszanowski (1986); Marshall et al. (1987).92

Almanac of Alberta Oribatida 2.3 13 January 2013Platynothrus Berlese, 1913 (ITIS 73xxxx)Diagnostic characters: genital setae delimited by carina; anal plates similar to or wider thanadanal plates; aggenital setae present; body often with adherent organic debris; pre-anal platedistinct; 9-24 pairs of genital setae, 2 pairs anal setae, 2 pairs aggenital setae on medial edgeof plate; pretarsi usually monodactyl; debris more dispersed/diffuse or restricted to posterior;median notogastral carinae usually present, dorso-central setae variable in length; posteriorsetae sessile or on short tubercles; bothridial saccules present; setiform setae d1, e1 insertedlaterad median carinae (carinae may be weak or absent); genital plates often divided; allspecies are all-female parthenogens and vary geographically.Also Known As: Heminothrus Berlese, 1913Type species: Nothrus peltifer CL Koch, 1839World species: 24Comments: Some authors subsume Platynothrus into Heminothrus and those that do not vary inthe placement of many species between the two genera. Some species in this genus areconsidered freshwater inhabitants that need saturated air to reproduce; they may be found inwet moss, sodden organic debris, and freshwater (Scatz & Behan-Pelletier 2008).Canadian species listed on DOC (bold = AB): Platynothrus peltifer (CL Koch, 1839); P.punctatus (L. Koch, 1879); P. sibiricus Sitnikova, 1975; Platynothrus sp.19. Key to adult Platynothrus in or near Alberta1. Notogastral setae relatively long, most reaching or passing the insertion of the next seta in theseries (Fig. 19.1A) ..................................................................................................................... 2- Notogastral setae short, most reaching only half distance to next seta in series; sensillus short,clubbed; 11 pairs genital setae; body 864; AK, YT, NWT,MB; Palearctic (Fig. 19.1B) ................................................................................................. Platynothrus punctatus (L. Koch, 1879)93

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 19.12. Interlamellar setae relatively short, not reaching/passing insertion of lamellar setae; notogastralsetae of moderate length, e1 not reaching level of h2; body often clean (Fig. 19.2A) .............. 3- Interlamellar setae (in) long, reaching/passing insertion of lamellar (le) setae; notogastral setaevery long, extending well past next seta in series, e1 reaching level of h2; organic debris oftenadherent to posterior notogaster and legs (Fig. 19.2B) .............................................................. 594Figure 19.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Median carinae well developed and separate (Fig. 19.3A) ......................................................... 4- Median carinae fused into single ridge anteriorly; body 790-920; OR, WA (Fig. 19.3B) ....................................................................................................... Platynothrus banksi (Michael, 1898)Figure 19.34. Gravid females carry numerous eggs (typically 8-14); 13-15 pairs of genital setae; usually 4setae on outer margin of trochanter III; dark brown to black in colour; 810-1000 long;Holarctic ...................................................................... Platynothrus peltifer (CL Koch, 1839)- Gravid females with 2-3 large eggs ........................................................ Platynothrus sp. 1 DEW5. Lateral carinae present and well developed (Fig. 19.5A) ............................................................ 7- Lateral carinae absent (Fig. 19.5B) ............................................................................................... 695

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 19.56. Sensillus (bo) long, >½ length of interlamellar seta (in); notogaster irregularly punctuatemedially; body 954-1010; Holarctic (Fig. 19.6A) ................................................................................................................................... Platynothrus thori (Berlese, 1904) – see Heminothrus- Sensillus short, less than a third length of interlamellar seta; notogaster with reticulate pattern;seta f1 present or absent; 19-21 pairs genital setae; body 960-1060, globular (Fig. 19.6B) ........................................ Platynothrus capilliatus (Berlese, 1914) (=Heminothrus septentrionalis)96Figure 19.6

Almanac of Alberta Oribatida 2.3 13 January 20137. Median carinae present; trochanters III with 4 setae on outer margin; 12-14 pairs of genitalsetae; 767 long (Fig. 19.7A) ........................................ Platynothrus sibiricus Sitnikova, 1975- Median carinae absent; trochanters III with 3 setae on outer margin; 750-900 long; AB;Palearctic (650-690 long) (Fig. 19.7B) ................................ Platynothrus yamasakii (Aoki, 1958)Figure 19.7Platynothrus peltifer (CL Koch, 1839) (RAM 99000148)Also Known As: Nothrus peltifer CL Koch, 1839; Nothrus palliatus CL Koch, 1839;Heminothrus (Platynothrus) peltifer (Koch, 1839).ABMI code/Common name: PLATPELDiagnostic characters: length 810-1000, dark brown to black, little adherent debris on posterior;prodorsum densely foveolate and micropunctate; le elongate (~100), somewhat shorter thansinuate in (120-125); bo (125-130 to basal bend) densely barbed, slightly spatulate distally,strongly curved at base; notogaster faintly foveolate, with stronger foveae medially andalong median carinae which arch anteriorly, but are not fused; notogastral setae mostlyreach next in series, c1-e1 (135-150); 13-15 (8-17) pairs of genital setae; usually 4 setae onouter margin of trochanter III.Overview: A common and widely distributed parthenogenetic species or species complex withhighly divergent mitochondrial DNA (see also Heethoff et al. 2007).Barcodes: 975 (658), 1041 (311, 658 x 9), 1042 (658), FM04 (658), SL10 (658 x 2), SL 18 (658x 4), SL21 (658 x 4)97

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Sellnick & Forsslund (1954); Gilyarov &Krivolutsky (1975).Similar taxa: Platynothrus banksi (Michael, 1898), a common species in WA (RAN pers.comm.) has median carinae fused into single ridge anteriorly; lamellar setae densely barbed,much shorter than interlamellar setae; body 790-920; and 3 setae on the outer margin oftrochanter III (see Fig. 155-1 in Krantz (1978)); specimen from BOG6, B3 has +/- fusedcarinae, but otherwise resembles P. peltifer; some other specimens have closelyapproaching carinae.ABMI Site Records: 2007: 218, 276, 277, 484, 515, 575, 599, 631, 665, 791, 792, 1068, BOG6,BOG7, UPL5, UPL7. 2008: 374, 375, 688, 690, 721, 934, 975, 976, 1008, 1041, 1379,1402, BOG1, BOG3, BOG4, FM04, FM07, SL10, SL18, SL21. 2009: 13, 498, 498, 498,506, 506, 506, 508, 528, 530, 537, 569, 569, 698, 881, 881, 882, 882, 914, 916. 2010: 1035,149, 324, 325, 352, 383, 876, 908, 909, 910, 1036, 1037, 1201, 1237, 1239, ALPAC-4,ALPAC-10, OG-910-1, OG-1069-1, OG-1175-1, OG-1352-1. 2011: none.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, ON, QC, NS, NF, [AK, Cosmopolitan;EMEND (56.46, -118.22); CNC: Waterton Lakes, Banff, Cypress Hills; Kananaskis; BC]Images: SEM (Meanook)Ecology: A mite of moist organic substrates up to 1700m including peatlands and muskratburrows. Winchester et al. (1996-2007) report it from the forest floor under amabilis fir andwestern hemlock on Vancouver Island. Lindo (2004-2007) reported this species fromwestern red cedar forest floor in the Walbran Valley on Vancouver Island. Parthenogenetic(thelytokous): gravid females with up to 14 eggs. Gut bolus mostly of dark, coarse organicmatter, some with dark hyphae and spores. Schneider (2005) placed P. peltifer in theprimary decomposer feeding guild (i.e. feeds mostly on litter). Specimens have been foundin the feathers of birds in Russia, a possible means of long distance dispersal (seeKrivolutsky & Lebedeva 2004). This mite also was reported as occurring in the hair ofsmall mammals in Slovakia, a possible means of local dispersal, by Miko & Stanko (1991).Heethoff et al. (2007) found 7 major clades of P. peltifer based on the cox1 gene from 2sites in North America (NY, WA), 2 in Japan, and 12 in Europe. The clades weregeographically separate and had relatively low divergence internally (

Almanac of Alberta Oribatida 2.3 13 January 2013bend) densely barbed, slightly swollen distally, strongly curved at base; notogaster faintlyfoveolate, with stronger foveae medially and along median carinae which arch anteriorly,but are not fused; notogastral setae mostly fall short of or just reach next in series, c1 (100);d1-e1 (63-100); 11 pairs of genital setae.Overview: similar to punctatus, but does not match CNC specimens; intermediate betweenpeltifer and punctatus = n. sp.?Barcodes:ID Check: Determination by DEW based on Sellnick & Forsslund (1954); Gilyarov &Krivolutsky (1975). 665 SW checked by VBP April 2008.Similar taxa: Platynothrus punctatus (L. Koch, 1879) YT, NU, NT, MB, NF; [AK, Holarctic]ABMI Site Records: 2007: 665. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution:Images:Ecology: Parthenogenetic (thelytokous): the females carry 2 large eggs (+1 partially developed).Gut boli consist of hyphae and coarse organic matter.Literature: Sellnick & Forsslund (1954); Marshall et al. (1987).*Platynothrus sibiricus Sitnikova, 1975 (RAM 99000149)Also Known As: Heminothrus (Platynothrus) sibiricus (Sitnikova, 1975)ABMI code/Common name: PLATSIBDiagnostic characters: length (767) 820-880, brown with debris, especially on posterior andlegs; prodorsum densely foveolate and micropunctate; bo (120 to bend) barbed and slightlyspatulate distally; in (140) sinuate, approaching or passing insertion of le (110) on shorttubercles); notogaster with foveolate median carinae, faint foveae medially and lateral tolateral carinae, setae very long, c1-e1 (200-210), e1 usually reaching or passing level of h2;lateral and median carinae present; trochanters III with 4 setae on outer margin; 12-14 pairsof genital setaeOverview: Very similar to some populations of P. peltifer, but females carry fewer, larger eggs.Barcodes:ID Check: Determination by DEW based on Sellnick & Forsslund (1954); Gilyarov &Krivolutsky (1975). 1102 SE checked by VBP April 2008.Similar taxa: P. yamasakii lacks median carinae and usually has 3 setae on outer margin oftrochanter III.ABMI Site Records: 2007: 1102. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: BC [AK; Russia]Images:99

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: Parthenogenetic (thelytokous): the two females are both gravid and carry 4-5 eggs. Gutboli consist of dark organic matter.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987).Platynothrus thori (Berlese, 1904) – see Heminothrus**Platynothrus yamasakii (Aoki, 1958) (UBIO 96870065)Also Known As: Heminothrus yamasakii Aoki, 1958; Heminothrus (Capillonothrus) yamasakiiAoki, 1958.ABMI code/Common name: PLATYAMDiagnostic characters: 750-900 long, brown with adherent debris, especially on posterior;prodorsum foveolate and micropunctate; bo (110-115) barbed, gradually expanding distally;in (180-200) very long, approaching tip of rostrum; le (125-150) very long and curled,nearly sessile; notogaster weakly foveolate, without median carinae, but with lateralcarinae, setae (250-300) very long, e1 usually reaching or passing level of h2; trochantersIII usually with 3 setae on outer margin; 12-13 pairs genital setaeOverview: Specimen from 600 C1II has 4 setae on outer margin of trochanter III, but otherwiseresembles yamasakii.Barcodes: 899 (658 x 3), 1041 (658 x 3), 1116 (658 x 3)ID Check: Determination by DEW based on Aoki (1958); Sellnick & Forsslund (1954);Gilyarov & Krivolutsky (1975). 1102 SE checked by VBP April 2008. Moose PastureResearch Site 8 km W Chipman, AB specimen identified by RAN 2008.Similar taxa: P. sibiricusABMI Site Records: 2007: 586, 600, 618, 632, 825. 2008: 689, 866, 868, 899, 932, 975, 1008,1041, 1116, 1404, SL12, UPL1. 2009: 539, 1510. 2010: 890, ALPAC-1, OG-1354-1. 2011:none.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444), Japan, Russian Far East]; CNC: NB (Kouchibouguac); ON(Carleton Co.)Images: SEM (MP)Ecology: Parthenogenetic (thelytokous): gravid females carry as many as 8 eggs of moderatesize. Gut boli are composed of mostly indistinct organic matter, some hyphae.Literature: Aoki (1958); Gilyarov & Krivolutsky (1975).100

Almanac of Alberta Oribatida 2.3 13 January 2013Back to Table of ContentsMalaconothridae Berlese, 1916 (ITIS 553093)Comments: The species of Malaconothridae known from Alberta are mostly tiny denizens ofaquatic to subaquatic habitats and are rarely collected in the ABMI ‘terrestrial’ survey.20. Key to genera of Malaconothridae in Alberta1. Tarsi with a single claw ................................................................ Malaconothrus Berlese, 1904- Tarsi with 3 claws .................................................................... Trimalaconothrus Berlese, 1916Malaconothrus Berlese, 1904 (ITIS 733688)Diagnostic characters: monodactyl Malaconothridae (bo, bothridium absent; anarthric; genuaIII-IV with one seta)Also Known As: none.Type species: Nothrus monodactylus Michael, 1888World species: 66Comments: Species in this genus are considered freshwater inhabitants that need saturated air toreproduce; they are found in wet moss, wet meadows, sodden organic debris, andfreshwater (Scatz & Behan-Pelletier 2008).101

Almanac of Alberta Oribatida 2.3 13 January 2013Canadian species listed on DOC (bold = AB): Malaconothrus mollisetosus Hammer, 1952;Malaconothrus sp.102Figure 21.1 Malaconothrus cf mollisetosus Hammer, 1952*Malaconothrus cf mollisetosus Hammer, 1952 (RAM 99000065)Also Known As: Previously differentiated into two species (sp. 1 DEW).ABMI code/Common name: MALAMOLDiagnostic characters: Female ventral length 400-470. Cerotegument of prodorsum andnotogaster with large foveae mostly 2-juncture of prodorsum and notogaster with ‘reticulations’ of transversely elongate andirregularly rhombic platelets. Prodorsum without obvious strong longitudinal ridges,rostrum rounded; prodorsal setae all strongly tapering, whip-like, smooth or with a fewsmall barbs; in (~45-55), distance in-in ~92, ex (~20-25), le (~35), ro (~25). Notogastralcuticle densely micropunctate and obscurely foveolate (visible only when cerotegumentremoved); notogastral setae (15 pairs, f1 apparently absent) all fine, whip-like with a fewsparse barbs and tending to break off distally: c1 (30), c2 (20), c3 (40-45), cp (~45-50 –with distal barbs), d1 (35), d2 (~40) inserted laterad d1, e1 (60), e2 (~50-57), f2 (~35-50),gland opening small and on lateral margin, h1 (~65); p1-3 ventral; distance c1-c1 (57)similar to d1-d1 (54); Ventral plate cerotegument similar to dorsum; genital plates with 6-7pairs of barbed setae (5-6+1); adanal plates with 3 pairs smooth to sparsely barbed setae; 2pairs minute anal setae; median seta of epimera I-II-III peg-like.Overview: Malaconothrus mollisetosus Hammer is a small, narrow monodactyl mite from wetmeadows and other subaquatic to aquatic habitats that was originally described fromYellow Knife and Churchill. This is the first report of the species in Alberta, but the species

Almanac of Alberta Oribatida 2.3 13 January 2013appears to be broadly distributed in the northern 2/3rds of the Province. The body iscovered with a thick, ornamented cerotegument that is easily abraded and the setae arefragile, curl, and have tips that easily break off (mollisetosus means ‘soft seta’), so theappearance can be variable. Only female mites occur and they reproduceparthenogenetically, producing a single large egg at a time.Barcodes:ID Check: Determination by DEW based on Hammer (1952), Balogh & Mahunka (1983),Luxton (1987). The original description is not detailed, and most specimens have brokensetae and abraded cerotegument, so this identification must be considered questionable (cf)until it can be checked by a specialist in the group.Similar taxa: Malaconothrus mollisetosus Hammer, 1952 was described as 0.41-0.45 mm longand having a coarsely punctate prodorsum, less coarse on the notogaster and with distinctpits under the cerotegument, and 5 pairs of genital setae. The notogastral setae are relativelylong and “soft” and c2 appears to be much shorter than c1 or c3 (Fig. 19). The ABspecimens tentatively assigned to this species are of a similar length (0.40-0.47 mm) andhave similar relatively long, weak, notogastral setae and cerotegument with “punctae” and adensely micropunctate cuticle; but they have 6-7 pairs of densely barbed genital setae andc2 is not especially short. Luxton’s (1987) redescription of M. monodactylus (Michael,1988) is similar, but that species appears to lack the micro-punctations and is shown havingonly 4 pairs of genital setae (fig. 1B). Some AB mites key to Malaconothrus pygmaeusAoki, 1969 in Gilyarov & Krivolutsky (1975) (NB misspelled “pigmaeus” in key.).Malaconothrus pygmaeus Aoki, 1969 has similar prodorsal and notogastral cerotegument,but is smaller (length 323-378) and has longer notogastral setae (mostly 40-70), and inshorter than le.ABMI Site Records: 2007: 358, 414R, 515, 585, 631, 663, 665. 2008: BOG2. 2009: 506. 2010:none. 2011: 1106.DOC (1/2008): [+other] Distribution: YT, NU, NT, MB, QC, NF [AK, Holarctic] [alsoMalaconothrus sp. reported from MB, ON, QC, NB, NS, NF; [AK]]Images: SEM (277, 414)Ecology: Malaconothrus mollisetosus Hammer, 1952 was described as common in moss andlitter in wet meadows at Yellow Knife and Churchill. Gut contents of the AB specimensinclude extensive brown fungal hyphae and bits of organic matter. Parthenogenetic: gravidfemales carry a single large egg.Literature: Hammer (1952); Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann(2006)..Trimalaconothrus Berlese, 1916 (ITIS 733689)Diagnostic characters: tridactyl Malaconothridae (bo, bothridium absent; anarthric; genua III-IVwith one seta)Also Known As:103

Almanac of Alberta Oribatida 2.3 13 January 2013Type species: Malaconothrus (Trimalaconothrus) indusiatus Berlese, 1916World species: ~80Comments: Species in this genus are considered freshwater inhabitants that need saturated air toreproduce; they are found in wet moss, sodden organic debris, and freshwater (Scatz &Behan-Pelletier 2008). Trimalaconothrus (Trimalaconothrus) (ITIS 736452)Canadian species listed on DOC (bold = AB): Trimalaconothrus foveolatus Willmann, 1931; T.maior (Berlese, 1910); T. novus (Sellnick, 1921); Trimalaconothrus sp.21. Key to adult Trimalaconothrus in Alberta104Figure 21.2 Trimalaconothrus maior (Berlese, 1910)1. Ventral length >550 ..................................................................................................................... 2- Ventral length

Almanac of Alberta Oribatida 2.3 13 January 2013*Trimalaconothrus foveolatus Willmann, 1931 (ITIS 736790)Also Known As:ABMI code/Common name: TRIMFOVDiagnostic characters: ventral length 430, pale pink; prodorsum and notogaster with ‘medialzone’, posterior rounded; preanal plate?, adanal ridge distinct; 7 pairs genital setae; in(~90), ex (~20), le (~70), ro (~30); median notogastral setae (25-27) smooth?, distance c1-d1 (47), d1-e1 (50); e2 (~60), smooth; cerotegument densely granulate, prodorsum andnotogaster foveolateOverview: cf. Specimens should be checked by a specialist.Barcodes: 444 (393, 399, 400)ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975) , Weigmann (2006).Similar taxa:ABMI Site Records: 2007: 575. 2008: 444. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: NB, NF; [AK, Holarctic]Images:Ecology: An aquatic mite known from bogs. Parthenogenetic (thelytokous).Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann (2006).*Trimalaconothrus maior (Berlese, 1910) (xxxxxxxxxx)Also Known As: Trimalaconothrus novus (Sellnick, 1921) (synonymy by Norton & Kethley1990); ABMI code/Common name: TRIMNOVDiagnostic characters: ventral length 580-660, pale pink to reddish brown; prodorsum andnotogaster with ‘medial zone’; preanal plate?, adanal ridge distinct; 7-10 pairs genital setae;in (~170-180), ex (32-36), le (~90-100), ro (~50); sub-basal double spur-like setae on tarsiI-III with 2-several strong basal teeth; median notogastral setae (25-35) finely barbed,distance c1-d1 (40-65), d1-e1 (80-95); e2 (~100), smooth; cerotegument densely granulate,notogaster evenly foveolate and with parallel carinaeOverview: Previously recorded as Trimalaconothrus novus (Sellnick, 1921), but afterexamination of type material Norton & Kethley (1990) determined Malaconothrus maiorBerlese, 1910, is the senior synonym.Barcodes:ID Check: Determination by DEW based on Hammer (1952); Gilyarov & Krivolutsky (1975);Weigmann (2006).Similar taxa:ABMI Site Records: 2007: 545, 575, 665. 2008: none. 2009: 13, 881. 2010: none. 2011: 63, 391,604, 984.105

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: NU, NT, NB, NS, NF; [Cosmopolitan]; [Lake Wabamun(13 Sept 2008); Namur Lake, Glacier NP, MT].Images: SEM (665R)Ecology: An aquatic mite found in peatlands. Parthenogenetic (thelytokous): apparentlyovoviviparous, females carry up to 4 larvae internally.Literature: Hammer (1952); Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Behan-Pelletier & Bissett (1994); Weigmann (2006).*Trimalaconothrus sp. 3 DEW (ITIS 73xxxx)Also Known As:ABMI code/Common name: TRIMSP3Diagnostic characters: ventral length 710-810, reddish brown; prodorsum and notogaster with‘medial zone’; adanal ridge absent; 7 pairs genital setae; in (~140), ex (18-20) barbed, le(~80), ro (~70); sub-basal double spur on tarsi I-III with 2-several teeth; median notogastralsetae (40-50) smooth, distance c1-d1 (60), d1-e1 (120); e2 (~120), smooth; cerotegumentdensely granulate, integument without foveae, probably densely pitted, longitudinal lineaeon lateral margins; sub-basal tarsal spur-like setae with weakly toothed margins.Overview: does not key in Gilyarov & Krivolutsky (1975)Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).Similar taxa:ABMI Site Records: 2007: UPL8. 2008: none. 2009: 528. 2010: none. 2011: 984.DOC (1/2008): [+other] Distribution: Trimalaconothrus sp. reported from NB, NS; [AK]Images:Ecology: An aquatic mite. Parthenogenetic (thelytokous).Literature: Gilyarov & Krivolutsky (1975); Weigmann (2006).*Trimalaconothrus sp. 4 DEW (ITIS 73xxxx)Also Known As:ABMI code/Common name: TRIMSP4Diagnostic characters: ventral length 850, pale yellow brown, legs more red brown; 7 pairsgenital setae; cerotegument densely granulate, notogastral integument weakly foveolatemedially.Overview:Barcodes:106

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).Similar taxa:ABMI Site Records: 2007: UPL8. 2008: none. 2009: none. 2010: ABMI Wetland 344. 2011:none.DOC (1/2008): [+other] Distribution: Trimalaconothrus sp. reported from NB, NS; [AK]Images:Ecology: An aquatic mite. Parthenogenetic (thelytokous).Literature: Gilyarov & Krivolutsky (1975); Weigmann (2006).Back to Table of ContentsTrhypochthoniidae Willmann, 1931 (ITIS 733416)Comments: Three of the four genera of Trhypochthoniidae known from Alberta are monotypicdenizens of aquatic habitats including sphagnum and other aquatic mosses. Since much ofAlberta is covered in muskeg and other boggy soils, these mites are occasionally collectedin ‘terrestrial’ samples. Members of the fourth genus, Trhypochthonius, are normallyterrestrial and more commonly collected, but the systematics of the genus is complex. Allmembers of the Trhypochthoniidae are parthenogens (thelytokes), so biological speciesconcepts are of no use in determining identity. I am currently treating the most commonspecies, T. tectorum, as a species complex, but have hopes that current research on theEuropean members of this group will result in reliable species characters and keys.Figure 22.1 Mucronothrus nasalis lamellar and rostral setae; claws107

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 22.222. Key to the Genera or species of Trhypochthoniidae in Canada1. Monodactyl; rostrum with naso-like process bearing closely adjacent rostral setae (ro) (Fig.22.3A) ............................................................. Mucronothrus nasalis (Willmann, 1929)- Tridactyl; rostrum without naso-like process, insertions of ro distant from each other (Fig 22.3B) ...................................................................................................................................... 2108Figure 22.3

Almanac of Alberta Oribatida 2.3 13 January 20132. Subcapitulum with genae fused to mentum (diarthric, but sutures visible); anal shields with 0-2setae (often asymmetrical); 2 pairs adanal setae; bothridium reduced to minute pore near inand ex, sensillus absent in AB collections (both may be present elsewhere) (Fig. 22.4A)................................................................................... Trhypochthoniellus Sellnick, 1928- Subcapitulum articulated with mentum (stenarthric, but fused basally in Mainothrus);anal/adanal setation 1-2/3; well-developed bothridium present; sensillus barbed andexpanded distally (Fig 22.4B) .......................................................................................... 3Figure 22.4109

Almanac of Alberta Oribatida 2.3 13 January 20133. Labiogenal scissure incomplete posteriorly, with 2 pairs of m setae closely adjacent; 2 pairs ofanal setae, 6 pairs of genital setae; 2 pairs of coxisternum IV setae; semi-aquatic, insphagnum(Fig. 22.5A) .............................................. Mainothrus badius (Berlese, 1905)- Labiogenal scissure complete, setae m vestigial; one pair of anal setae, 6-18 pairs of genitalsetae; coxisternum IV with 3 pairs of setae; terrestrial in dry to wet soils (Fig. 22.5B) ............................................................................................ Trhypochthonius Berlese, 1904Figure 22.5Mainothrus Choi, 1966 (ITIS 733683)Diagnostic characters: labiogenal scissure incomplete posteriorly, with 2 pairs of m setaeclosely adjacent; 2 pairs of anal setae, 6 pairs of genital setae; 2 pairs of coxisternum IVsetae.Also Known As: Altrhypochthonius Weigmann, 1997; Trhypochthoniellus.Type species: Mainothrus aquaticus Choi, 1996World species: 3Comments: Species in this genus are considered freshwater inhabitants that need saturated air toreproduce; they are found in wet moss, sodden organic debris, and freshwater (Scatz &Behan-Pelletier 2008).Canadian species listed on DOC (bold = AB): Mainothrus badius (Berlese, 1905)110

Almanac of Alberta Oribatida 2.3 13 January 2013Mainothrus badius (Berlese, 1905) (ITIS 736677)Also Known As: Trhypochthoniellus badius (Berlese, 1905)ABMI code/Common name: MAINBADDiagnostic characters: ventral length 600-650. Prodorsum densely microtuberculate; bo (~120)with barbed, spindle-shaped club, ~2/3 length of coarse, sparsely barbed in (~170), lamellar(~110) and rostral (~80) setae similar but shorter; exobothridial setae represented only byalveoli. Notogaster reticulate over granular, micropunctate background; anterior notogastralsetae very short, simple or with at most a few minute barbs; h1-3 very long, with a fewbarbs. Ventral plates and epimera micropunctate; labiogenal scissure incompleteposteriorly, with 2 pairs of m setae closely adjacent; 2 pairs of anal setae, 3 pairs adanalsetae; 6 pairs of genital setae; 2 pairs of coxisternum IV setae; tridactyl.Overview: This medium-sized (about 2/3rds of a mm long) brown mite is an inhabitant ofsphagnum moss and other subaquatic organic habitats throughout the Holarctic where itgrazes on fungi and decomposing organic matter. Only adult females are known and theyreproduce parthenogenetically.Barcodes:ID Check: Determination by DEW based on Weigmann (2006). NB - The type is lost (Marshallet al. 1987).Similar taxa: Trhypochthonius species.111

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: 2007: 515, 631, 663, 791. 2008: 412, 444. 2009: 530, 537, 570. 2010: none.2011: 361, 391.DOC (1/2008): [+other] Distribution: AB, MB, QC; [Holarctic]; [CNC: Waterton Lakes (edge ofBelly River); Jasper]Images:Ecology: Found in wet moss, sodden debris, and freshwater (Schatz & Behan-Pelletier 2008);classified as mesophilous by Behan-Pelletier & Bissett (1994) and reported from peatlandsand muskeg. No males are known: gravid females carry up to 6 eggs. Gut contents arecomprised primarily of dark fungal hyphae, spores, and coarse granular material.Literature: Marshall et al. (1987); Behan-Pelletier & Bissett (1994).Mucronothrus Trägårdh, 1931 (ITIS 733684)Diagnostic characters: naso-like process bearing closely adjacent rostral setae (ro); sensillussetiform, shorter than in, bothridium raised, not cup-like; monodactylAlso Known As: none.Type species: Malaconothrus (?) nasalis (Willmann, 1929)World species: 2Comments: This genus is considered truly aquatic (reproduces in water and all stages live in freshwater or at its margins) by Schatz & Behan-Pelletier (2008).Canadian species listed on DOC (bold = AB): Mucronothrus nasalis (Willmann, 1929)Mucronothrus nasalis (Willmann, 1929) (ITIS 736679)Also Known As: Mucronothrus rostratus Trägårdh, 1931ABMI code/Common name: MUCRNASDiagnostic characters: naso-like process bearing closely adjacent rostral setae (ro); sensillussetiform, shorter than in, bothridium raised, not cup-like; monodactyl; usually 18-22 pairsof genital setae.Overview: This is a widespread parthenogenetic species.Barcodes:ID Check: Determination by DEW based on Norton et al. (1996).Similar taxa: The only other described species (Mucronothrus willmanni Norton, Behan-Pelletier & Wang, 1996) is known from the Western USAABMI Site Records: 2007: 360, 663. 2008: 689. 2009: none. 2010: 324. 2011: 997, 1072.DOC (1/2008): [+other] Distribution: AB, BC, SK, ON, QC, NB, NS, NF, [Cosmopolitan]Images:112

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: A mite of cold streams and lakes. Parthenogenetic (thelytokous): gravid females carryup to 4 eggs.Literature: Marshall et al. (1987); Norton et al. (1988); Norton et al. (1996).Trhypochthoniellus Willmann, 1928 (ITIS 73xxxx)Diagnostic characters: subcapitulum diarthric; anal/adanal setation 0-1/2Also Known As: see Mainothrus.Type species: Trhypochthonius (Trhypochthoniellus) setosus Willmann, 1928World species: 7Comments: This genus is considered truly aquatic (reproduces in water and all stages live in freshwater or at its margins) by Schatz & Behan-Pelletier (2008).Canadian species listed on DOC (bold = AB): Trhypochthoniellus setosus canadensis Hammer,1952Trhypochthoniellus setosus canadensis Hammer, 1952 (ITIS 73xxxx)Also Known As: Trhypochthonius setosus canadensis (Hammer, 1952)ABMI code/Common name: TRHYSECDiagnostic characters: bothridium reduced to pore and bo absent; in very long; ex slender,acicular; median notogastral setae relatively long, mostly subequal in length; c1 passinginsertion of d1; 10-14 pairs of genital setae.Overview: The European Trhypochthoniellus longisetus forma setosus Willmann, 1928, whilenot reported from North America (Marshall et al. 1987), may be the same as Hammer’ssubspecies.Barcodes:ID Check: Determination by DEW based on Hammer (1952); Weigmann (1997).Similar taxa: M. badius has very short anterior notogastral setae and a stenarthric subcapitulumwith an incomplete labiogenal sutureABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, NB, NF, [AK]; CNC: [Moose PastureResearch Site 8 km W Chipman, AB (53.656667, -112.759444), Lake Wabamun]; [AK]Images: SEM (Lake Wabamun)Ecology: This aquatic mite is found in peatlands and moss along lake margins (Moose PastureResearch Site 8 km W Chipman, AB, Lake Wabamun). No males are known.Literature: Hammer (1952); Marshall et al. (1987); Behan-Pelletier & Bissett (1994); Weigmann(1997); Fujikawa (2000).113

Almanac of Alberta Oribatida 2.3 13 January 2013Trhypochthonius Berlese, 1904 (ITIS 733687)Diagnostic characters: Labiogenal scissure complete, setae m vestigial; one pair of anal setae, 6-18 pairs of genital setae; coxisternum IV with 3 pairs of setae.Also Known As: Tumidalvus Ewing, 1908Type species: Hypochthonius tectorum Berlese, 1896World species: ~25Comments: A revision of Trhypochthonius in North America is sorely needed. Recent reviews inEurope include Szywilewska-Szczykutowicz1 & Olszanowski (2007) of Trhypochthoniusdescribed by Willmann and Weigmann & Raspotnig’s (2009) review of the tectorumspecies group. Herein I follow the latter and consider Trhypochthonius americanus (Ewing,1908) as a subspecies of T. tectorum and treat all tectorum-like mites as Trhypochthoniustectorum s.l.Canadian species listed on DOC (bold = AB): Trhypochthonius sp.; T. tectorum (Berlese, 1896)23. Key to adults of species of Trhypochthonius known from North America1. All dorsal & lateral notogastral setae densely barbed, most expanded distally and with a bushyappearance, but some may be reduced and rod-like (Fig. 23.1A) .............................................. 2- At least anterior median notogastral setae (c1, d1-2, e1) smooth, acuminate; lateral andposterior setae smooth acuminate or barbed distally; [8 pairs genital setae; light brown; body480-565 long] (Fig. 23.1B) .......................... Trhypochthonius cladonicola (Willmann, 1919)114

Almanac of Alberta Oribatida 2.3 13 January 2013Figure 23.12. Dorsal setae variable in length, especially those in rows c, d, and e, marginal setae relativelylong; interlamellar seta longer than either the sensillus or rostral seta; notogastral seta c2about twice as long as c1, d1 subequal to or ~twice as long as d2 (Fig. 23.2A) ....................... 3- Most dorsal setae short and bushy, setae within rows only moderately different in lengths;interlamellar seta much shorter than both sensillus & rostral seta; notogastral seta c1-2 andd1-2 very short (

Almanac of Alberta Oribatida 2.3 13 January 20133. Anterior notogastral setae well developed, all except d2 bushy, expanded distally, and >25long; ventral setae h3 and p3 well developed, >25 long and strongly barbed (Fig. 23.3A) ...... 4- Anterior notogastral setae c1, d1-2, e1 slender and minute (e1 longest, ~20); ventral setae h3and p3 also very short and at most weakly barbed;[ 8-11 pairs genital setae; 540-570 long](Fig. 23.3B).................................................................... Trhypochthonius silvestris Jacot, 1937Figure 23.34. Posterior notogastral seta p1 ~75, f2 and p2 ~50; 7-11 (usually 9-11) pairs of genital setae;body 599-694 long (Fig. 23.4A) ............ Trhypochthonius tectorum tectorum (Berlese, 1896)- Posterior notogastral seta p1 very long (~90), f2 and p2 >60; 6-8 (usually 7) pairs genital setae;body 530-680 long (Fig. 23.4B) ......... Trhypochthonius tectorum americanus (Ewing, 1908)116Figure 23.4

Almanac of Alberta Oribatida 2.3 13 January 2013*Trhypochthonius cf cladonicola (Willmann, 1919) (ITIS 736692)Also Known As: Camisia cladonicola Willmann, 1919; Trilohmannia cladonicola (Willmann):Willmann 1923; Trhypochthonius cladonicolus (Willmann)ABMI code/Common name: TRHYCLADiagnostic characters: Ventral length 480-565; body light brown, more or less parallel sided.Prodorsum rugose-reticulate and densely micropunctate, reticulations faint between setaein; bo (60-64) with oval, densely spiculate club; in (102-103), le (70-75), ro (69-70) allsetae thickened and with short barbs; in and le more or less isodiametric, ro tapering; exabsent. Notogaster rugose-reticulate, micropunctations becoming more distinct posteriorly;notogastral setae except h1, usually slender, tapering, and mostly smooth; c1 (17-18), c2(19), d1 (15-20), d2 (17-18) short; other setae longer: c3 (24-26), cp (30); e1 (25-32), e2(35-45), f (19-29), h1 (41-53) somewhat thickened, barbed distally, h2 (45), p1 (54), p2(30);in some populations lateral and posterior setae (c3, cp, e2, f, h1-2) barbed. Tibiae I-IV: 5(2-IV: 5(2), 5(1), 3(1), 3(0); dorsal complexon tibia I, genu I with anterior solenidion tightly adpressed to dorsal seta; posteriorminute or possibly only a socket; socket also present on genu III.Overview: Trhypochthonius cladonicola is a relatively small species (0.48-0.57 long) withslender, acuminate, and almost smooth setae. The name ‘cladonicola’ apparently refers todwelling in Cladonia lichens and this mite can be found in a variety of northern litter, moss,and lichen habitats.117

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes: 472 (658)ID Check: Determination by DEW based on Szywilewska-Szczykutowiczl & Olszanowski(2007). 330 NE checked by VBP April 2008.Similar taxa: All North American Trhypochthonius are similar and difficult to separate, but thisspecies has smooth rather than barbed notogastral setae. Unlike the Alberta specimens,European T. cladonicola (‘cladonicolus’ is an alternative but incorrect spelling) have theprodorsal setae smooth and pointed, but both populations have notogastral setae pointed,smooth or indistinctly barbed, 8 pairs of genital setae and similar lengths (480–550 µm longin Europe). Trhypochthonius semovitusi Szywilewska, 2004 has both the prodorsal setaebarbed and pointed and the notogastral setae smooth, more or less blunt; 7 pairs of genitalsetae; length 560–580 µm. Trhypochthonius ‘sp. 4’ was originally used for 472, 752specimens with barbed lateral and posterior notogastral setae; however, this seems toominor to be a useful species character.ABMI Site Records: 2007: 330, 358, 360. 2008: 472, 752 [414, 545 NE in residuals]. 2009:none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [NS, Palearctic]; [CNC: NF]Images: SEM (414SE)Ecology: A mite associated with lichens, conifer litter, and muskeg. Parthenogenetic(thelytokous): gravid females carry 1-3 large eggs. Gut contents include dark hyphae andpale to brown granular material. Subfossil specimens (3250 BP) have been reported frompeat in NE Russia (Krivolutsky & Sidorchuk 2003).Literature: Szywilewska-Szczykutowiczl & Olszanowski (2007).**Trhypochthonius cf nigricans Willmann, 1928 (ITIS 736703)Also Known As: Trhypochthonius sphagnicola Weigmann, 1997ABMI code/Common name: TRHYNIG118

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: Ventral length 500-600; body dark brown, especially posteriorly.Prodorsum rugose-reticulate and densely micropunctate; bo (55-60) with oval, denselyspiculate club; in (46-52), le (40-44), ro (58-60) all somewhat thickened and denselybarbed; in slightly flared distally, le more or less isodiametric, ro tapering; ex absent.Notogaster rugose-reticulate, micropunctate distinct throughout; setae all thickened, denselybarbed; c1 (22-25), c2 (14-20), d1 (22-24), d2 (18-20) short; other setae longer: c3 (23-33),cp (28); e1 (30-32), e2 (30-35), f (26-30), h1 (34-36), h2 (27-38), p1 (39-41), p2(26-28).Tibiae I--IV: 5(2), 5(1), 3(1), 3(0);dorsal complex on tibia I, genu I with anterior solenidion tightly adpressed to dorsal seta;posterior solenidion on genu I minute (~1) inserted in dorsal setal apophysis; on genu II:Overview: Description based on 665. All North American Trhypochthonius are similar anddifficult to separate.Barcodes:ID Check: Determination by DEW based on Szywilewska-Szczykutowicz1 & Olszanowski(2007). 665 SE checked by VBP April 2008.Similar taxa: T. tectorumABMI Site Records: 2007: 665. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [KY, TX, Palearctic]Images:Ecology: A mite of forest soil, grassy pond margins, and caves. Presumably parthenogenetic(thelytokous): gravid females carry 1-3 large eggs. Gut boli contain fungal hyphae, conidia,and brown granular material.Literature: Szywilewska-Szczykutowicz1 & Olszanowski (2007).Trhypochthonius tectorum (Berlese, 1896) s.l. (ITIS 736713)Also Known As: Hypochthonius tectorum Berlese, 1896; Nothrus tectorum (Berlese, 1896);Trhypochthonius nigricans sensu Jorgensen, 1934; Trhypochthonius tectorum tectorum(Berlese, 1896); Trhypochthonius tectorum americanus (Ewing, 1908); Shelved MothereatingMite.ABMI code/Common name: TRHYTECDiagnostic characters: Ventral length 485-810; body light brown. Prodorsum rugose-reticulateand densely micropunctate; bo (75-80) with fusiform, densely spiculate club; in (88-110), le(80), ro (68-70) all somewhat thickened and densely barbed; in and le more or lessisodiametric, ro tapering; ex absent. Notogaster rugose-reticulate, micropunctate faintanteriorly, increasing posteriorly; setae all thickened, densely barbed and most slightlyflared at tip; c1 (26), d1 (24), d2 (18) short; other setae longer: c2 (35), c3 (50), cp (47); e1(40), e2 (48), f (48), h1 (60), h2 (65), p1 (68), p2(50). Tibiae I-[20]), 4(1 [12]), 4(1); genua I-IV: 5(2), 5(2), 3(1), 3(0); dorsal complex on tibia I, genu I119

Almanac of Alberta Oribatida 2.3 13 January 2013120with anterior solenidion tightly adpressed to dorsal seta; on genu II, posterior solenidiondorsal setal apophysis.Overview: In Alberta, Trhypochthonius tectorum (Berlese) is a morphologically and genetically(cox1 gene) variable parthenogenetic form with some populations showing similarity to T.americanus (Ewing, 1908) and possibly to T. silvestris Jacot, 1937 or one of the speciesdescribed from Japan (e.g. T. japonicus Aoki, 1967 or T. septentrionalis Fujikawa, 1995). Iam currently treating these as a species complex (i.e. tectorum in the broad sense or sensulato, abbreviated s.l.).Barcodes: 344 (658 x 3), 413 (657 x 2, 658), 472 (658), 1007 (357), FM07 (653)ID Check: Determination by DEW based on Weigmann & Raspotnig (2009).Similar taxa: All North American Trhypochthonius are highly variable and difficult to separate.ABMI Site Records: 2007: 276, 330, 331, 358, 359, 360, 360, 388, 389, 512, 514, 515, 543, 544,545, 576, 585, 631, 632, 633, 665, 792, 1068, 1069, 1102, 1103, 1135, 1526, 1526, 1544,BOG6, BOG7. 2008: 344, 413, 688, 719, 721, 751, 866, 1007, 1222, 1404, 1436, BOG1,BOG2, BOG4, FM07, UPL2. 2009: 2, 3, 15, 32, 33, 508, 530, 539, 559, 569, 697, 698, 881,1529, 1584, 1585, 72M-1, 72M-3. 2010: 151, 208, 383, 923, 1036, 1176, 1177, 1202,ALPAC-1, ALPAC-10, ALPAC-16, OG-910-1, OG-910-2, OG-1069-1, OG-1171-2, OG-1203-1, OG-1354-1. 2011: 64, 65, 93, 242, 302, 332, 361, 362, 391, 422, 452, 481, 964,969, 990, 995, 1017, 1071, 1093, 1138, 1157, 1218, 1231, 1304, 1437, 1438, 1439, 1459,1461, 1561, 1577, 1593, 1605, A635-1, A637-2, A692-1, A7, A702, A761-3, A761-4, OG-1122-1, OG-1212-1, OG-1248-1, OG-1275-1, OG-1283-1, OG-1334-1, OG-1338-1DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, BC, MB, QC, NS, [AK, Holarctic, Lindo& Visser (2004)]; [Kinsella, Moose Pasture Research Site 8 km W Chipman, AB], [CNC:Jasper, Writing-on-Stone PP; Kananaskis]Images: SEM (Kinsella, 1102)Ecology: A mesophilous mite found in forest soils, peatlands; wind swept alpine; juniper,cabresia turf, moss campion; aspen litter; moss-grass turf. Parthenogenetic (thelytokous):gravid females carry up to 7 eggs. Gut contents include pigmented fungal hyphae, conidia,arthrospores, and bits of organic matter. Lindo (2004-2007) reported this species fromwestern red cedar forest floor and canopy in the Walbran Valley of Vancouver Island.Ermilov et al. (2004) reported that T. tectorum at 17 C takes 97-116 days to develop fromegg to adult and at 20C 49-60 days. Meier et al. (2002) found that T. tectorum not only didbetter on the lichen Xanthoria parietina than on non-lichenized fungi, but that viable sporesof both the lichen and its alga Trebouxia arboricola were passed in the fecal pellets. Theyalso report ovovivipary in T. tectorum, or at least the eggs overwinter in dead females,hatch within the female, and the newly hatched babies “first feed on the viscera of the deadfemale prior to switching, as deutonymphae and adults, to a diet consisting of putrifiyingplant material and lichens.” Specimens have been found in the feathers of birds in Russia, apossible means of long distance dispersal (see Krivolutsky & Lebedeva 2004).Literature: Hammer (1952, 1955); Marshall et al. (1987); Behan-Pelletier & Bissett (1994);Fujikawa (1995, 2000); Lindo & Visser (2004); Weigmann (2006); Weigmann & Raspotnig(2009).

Almanac of Alberta Oribatida 2.3 13 January 2013Back to Table of ContentsNanhermanniidae Sellnick, 1928 (ITIS 733420)(Return to Key to Major Groups)Nanhermannia Berlese, 1913 (ITIS 733703)Diagnostic characters: body subcylindrical, encased in foveolate armour with semi-lunarscissures near genital platesAlso Known As:Type species: Nothrus nanus Nicolet, 1885World species: ~33Comments: Only one undescribed species is currently known from AB. Some workers recognizeNanhermannioidea (ITIS 733351)Canadian species listed on DOC (bold = AB): Nanhermannia dorsalis (Banks, 1896); N.elegantula Berlese, 1913; Nanhermannia sp.Nanhermannia sp. 1 DEW (RAM 99000035)Also Known As: none.121

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI code/Common name: NANHSP1Diagnostic characters: ventral length 530-640, dark reddish brown; notogaster stronglyfoveolate, setae (90-100) smooth; prodorsum densely punctate in central T, a few indistinctfoveae anteriorly, with median foveolate groove between bothridia (with single saccule),and coarsely foveolate laterally; posterior tubercles foveolate basally, low, rounded distallywith 4-7 blunt teeth; bo short (60-65), distal half with serrate margin; other prodorsal setaesimple: in (45-63) directed anteriorly; le (~35-40) inserted far forward in T, tips reachinsertion of ro (30) which are inserted on small tubercles and bracket a recessed tooth-likeprocess (hard to see without dissection); tibiae I without distinct bifurcate seta (setae havemarginal spicules with distal point) and with complex of (medium, longer, minute -antiaxial to paraxial) solenidia?; tarsus I with sub-basal spur+solenidion complex, tarsus IIwith spur+2 solenidia complex.Overview: This is a cylindrical heavily armoured, reddish brown mite covered with ovaldepressions (foveae). It is common and often abundant in boggy habitats in the northerntwo-thirds of the Province, but appears to represent an undescribed species. Only femalesare known and they probably reproduces parthenogenetically.Barcodes: 444 (657, 658 x 2); MP (0, 402)ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975), Weigmann (2006).This is an undescribed species according to VBP October 2008.Similar taxa: Nanhermannia elegantula Berlese, 1913 has a foveolate prodorsum that lacks theT-shaped prodorsal field, has subtriangular prodorsal tubercles, and blade-like setae; N.dorsalis (Banks, 1896) [based on DOC SEMs] has subtriangular tubercles with 3 teeth anda foveolate T-region; Nanhermannia comitalis Berlese, 1916, N. sellnicki Forsslund, 1958[Palearctic]; seems to be most similar to N. coronata Berlese, 1913, but le are longer and‘coarse pit-like depressions’ (Gilyarov, 1975) are absent (or this may refer to faint foveae);ABMI Site Records: 2007: 216, 248, 360, 388, 389, 514, 544, 545, 574, 585, 599, 601, 617, 631,633, 663, 665 791, 792, 1070, 1103, BOG1, BOG6, BOG7, UPL5. 2008: 412, 443, 444,690, 719, 720, 721, 752, 901, 974, 975, 1379, BOG2, BOG3, FM04, FM07, PRO3, SL10,SL18, SL21, UPL2. 2009: 32, 497, 498, 499, 506, 507, 508, 528, 529, 530, 559, 561, 568,569, 570, 697, 698, 759, 760, 761, 881, 882, 883, 914, 916. 2010: 324, 384, 909, 1036,1037, 1142, 1171, 1175, 1207, 1209, 1237, 1239, ALPAC-4, ALPAC-10, ALPAC-16, OG-910-1, OG-943-1, OG-972-1, OG-1005-1, OG-1171-1. 2011: 65, 93, 332, 391, 392, 482,604, 608, 672, 968, 969, 970, 1003, 1003, 1024, 1071, 1105, 1136, 1137, 1138, 1238,A602-1, A608-2, A635-1, A637-1, A637-2, A7.DOC (1/2008): [+other] Distribution: Nanhermannia sp. reported in AB, YT, BC, MB, QC, NS,NF; [Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)]; N.coronata reported in NF, YT, AK in Marshall et al. (1989)Images: SEM (MP)Ecology: Species of Nanhermannia are common in bogs, fens, and peatlands (Behan-Pelletier &Bissett 1994), as well as in forest litter. This species has gut boli that contain fungal hyphaeand granular to sheet -like material that probably represent bits of plant material.Parthenogenetic (thelytokous), gravid females can carry 2 large eggs.122

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Marshall et al. (1987).Back to Table of Contents123

Almanac of Alberta Oribatida 2.3 13 January 2013Cohort Brachypylina (ITIS 733333)Comments: The Cohort (Infraorder) Brachypylina contains most of the species of Oribatida inAlberta. In the text, the superfamilies are arranged in more or less phylogenetic order (sensuMarshall et al. 1987, Norton & Behan-Pelletier 2009), but within each superfamily thefamilies and genera are arranged alphabetically.(Return to Key to Major Groups)B1. Key to the Superfamilies of Brachypylina (>0.3 mm) in Alberta1. Opisthonotal gland openings various, but without large spout-like openings (Fig. B1.1A) ....... 2- Opisthonotal gland openings spout-like on large, domed-shaped notogastral shield (coveredwith closely adherent tritonymphal exuviae) (Fig. B1.1B, Fig. B1.2) ........ HermannielloideaFigure B1.1124

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B1.2Figure B1.32. Pteromorphs present as distinct lobe-like to ear-shaped structures on the lateral notogaster thatcover the bases of the legs; prodorsal lamellae usually present and variously developed(absent in Galumnoidea); notogaster usually with porose areas or saccules (Fig. B1.3, Fig.B1.4A-B) ................................................................................................................................. 20- Distinct pteromorphs absent, but short tecta or anteriorly directed triangular projections may bepresent in the humeral region; lamellae and porose areas or saccules present or absent (Fig.B1.4 C)....................................................................................................................................... 3125

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B1.43. Genital opening covered by a pair of entire plates; notogastral scalps usually absent in adults,but sometimes present, loosely to strongly adherent (Fig. B1.5A) ........................................... 4- Genital opening covered by transversely divided plates; notogaster with well developed andstrongly adherent stack of scalps (Fig. B1.5B) ....................................................... NeoliodidaeFigure B1.5126

Almanac of Alberta Oribatida 2.3 13 January 20134. Notogaster well sclerotized, shiny or variously ornamented (reticulations, foveae, ridges, etc.),or with thick, blocky, tuberculate, or patterned cerotegument (sometimes with adherentdebris); sensillus various (Fig. B1.6A) ...................................................................................... 5- Notogastral integument weakly sclerotized, with wrinkled pattern; sensillus short, globose (Fig.B1.6B)................................................................................ Ameronothroidea (Ameronothrus)Figure B1.65. Notogaster with discrete lenticulus at median anterior edge of notogaster (Fig. B1.7, Fig. B1.8A) ............................................................................................................................................... 6- Lenticulus absent (Fig. B1.8B) .................................................................................................... 8127Figure B1.7

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B1.8Pteromorphs absent, lenticulus present6. All tarsi bidactyl; sensillus setiform; cerotegument densely ornate with linear to stellate ridges;minute notogastral porose areas present; small mites (mostly under 0.4 mm) in dry soils (Fig.B1.9A) ................................................................................ Licneremaeoidea (Bipassalozetes)- Tarsi I-III monodactyl, tarsus IV with 1 or 2 claws; sensillus short and blackjack-like toglobose; cerotegument simple to ornate; in various habitats (Fig. B1.9B) ............................... 7128Figure B1.9

Almanac of Alberta Oribatida 2.3 13 January 20137. Notogaster without concentric rings, but with lateral bands of tubercles that function as aplastron; femora without discrete porose areas; tarsus IV monodactyl or heterobidactylous; inwet moss, aquatic vegetation, and water bodies; sometimes on fish (Fig. B1.10A) ......................................................................................................................... Hydrozetoidea (Hydrozetes)- Notogaster flattened and with a pair of concentric oval furrows, plastron absent; femora withporose areas; all tarsi monodactyl in Alberta species which is often on bark or associated withbark beetles, rarely in soil (Fig. B1.10B) .................... Cymbaeremaeoidea (Scapheremaeus)Figure B1.10Pteromorphs absent, lenticulus absent8. Prodorsum with shelf-like lamellae under which legs I may be retracted; anterior notogastraltubercles, ridges or spines absent, but humeral process sometimes present (Fig. B1.11A) ...... 9- Prodorsum without shelf-like lamellae, ridge-like costulae sometimes present, usually sessile,but rarely with a distinct cusp; anterior notogastral tubercles, ridges or spines sometimespresent (Fig. B1.11B) .............................................................................................................. 16129

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B1.119. Cerotegument thin and shiny and octotaxic system obviously absent, or thick, irregular tohighly ornamented with at most a pair of small saccules near setae lp (Fig. B1.12A) ........... 10- Notogastral octotaxic system present, usually as 4 pairs (sometimes reduced or expanded) ofporose areas (Aa, A1-3) or saccules (Sa, S1-3); cerotegument usually thin, dull to shiny,never highly ornamented (Fig. B1.12B) ..................................................... Oripodoidea (part)Figure B1.1210. Cerotegument usually thick and with strong pattern of ridges, tubercles, or foveae, bodies dulland often with adherent soil; chelicerae chelate-dentate, robust (Fig. B1.13A) ..................... 11130

Almanac of Alberta Oribatida 2.3 13 January 2013- Cerotegument thin, bodies usually shiny, smooth; notogastral setae often minute exceptposteriorly; chelicerae chelate-dentate, pelopsiform, or rake-like (Fig. B1.13B) GustavioideaFigure B1.1311. All tarsi monodactyl; cerotegument various (Fig. B1.14A) .................................................... 14- All tarsi tridactyl; cerotegument thick, amorphous or patterned (Fig. B1.14B) ........................ 12Figure B1.1412. Cerotegument amorphous and forming parallel ridges on notogaster or variously ornamentedto form ridges, tubercles, or reticulations, not forming smooth, circular depressions (foveae);131

Almanac of Alberta Oribatida 2.3 13 January 2013notogaster without central ring-like area; any humeral shelf at most low and rounded, notprojecting strongly; lamellae parallel or converging (Fig. B1.15A) ....................................... 13- Cerotegument densely foveolate and with raised, ring-like region in centre of notogaster;humeral process well developed and projecting laterad bothridium; tips of lamellae blade-likeand reflexed medially (Fig. B1.15B) ......................................... Cepheoidea (Eupterotegaeus)Figure B1.1513. Lamellae converging and meeting distally; notogastral saccules absent, but femora, genua,tarsi, and some trochanters with well developed saccules (Fig B1.16A) ........................................................................................................................... Cymbaeremaeoidea (Ametroproctus)- Lamellae subparallel distally, tips separate; small saccule (S2) present between setae lp-h3;legs without saccules (Fig. B1.16B) ................................. Licneremaeoidea (Exochocepheus)Figure B1.16132

Almanac of Alberta Oribatida 2.3 13 January 201314. Lamellar cusps absent or short, subtriangular on converging lamellae; translamella absent;notogaster with strong pattern of ridges or foveae (Fig. B1.17A) ........................................... 15- Lamellar cusps elongate, about one-third the length of the lamellae; indistinct translamellapresent at base of cusps; notogaster usually with one or three pairs of depressions and minutecerotegumental pustules (Fig. B1.17B) ................................ Tectocepheoidea (Tectocepheus)Figure B1.1715. Lamellae converge distally; notogaster subcircular with short humeral projection, setaedistributed in marginal ring (Fig. B1.18A) ................................................................................................................................................. Cepheoidea (Cepheus, Oribatodes, Eupterotegaeus)- Lamellae more or less parallel on margin of prodorsum; notogaster more or less oval with setaedistributed across notogaster and with circum-marginal furrow (Fig. B1.18B) . Carabodoidea133

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B1.18Pteromorphs absent, lenticulus absent, lamellae absent16. All tarsi tridactyl; leg segments long and thin or short and broad, not bead-like (Fig. B1.19A)................................................................................................................................................. 17- All tarsi monodactyl; legs often with bead-like segments (moniliform) (Fig. B1.19B) ............ 18Figure B1.1917. Notogaster cap-like with setae distributed over its surface, without raised margin, with orwithout anterior tubercles; anal plates typically with 3 or more pairs of setae; legs robust,shorter than body (Fig. B1.20A) .......................................................................... Eremaeoidea- Notogaster flat-topped, usually with a raised margin and strongly patterned cerotegument, and5 pairs of postero-marginal setae, dorso-central setae absent; anal plates with 2 pairs of setae;legs long and slender, I and IV usually as long or longer than body (Fig. B1.20B)....................................................................................................................... Plateremaeoidea134

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B1.2018. Notogaster various, but not both dome-shaped and with ranked or whorled setae (ranked inHungarobelba which has a truncate anterior notogastral margin) setae usually spread overnotogaster, anterior tubercles or ridges present or absent; scalps never present; costulaepresent or absent; parastigmatic enantiophysis (Sa, Sp) absent (Fig. B1.21A) ....................... 19- Notogaster oval and dome-shaped, usually with a pair of anterior spines (spinae adnatae), andsometimes with scalps, most setae arranged radially or in two parallel ranks; costulae absent;well developed parastigmatic enantiophysis (Sa, Sp) present behind insertion of legs II (Fig.B1.21B).................................................................................................................. Damaeoidea135Figure B1.21

Almanac of Alberta Oribatida 2.3 13 January 20139. Anterior notogastral margin truncate and with a pair of large spines; notogastral setae mostly intwo parallel ranks; costulae and tectopedal fields absent; 6 pairs of genital setae (Fig. B1.22A)........................................................................................................ Ameroidea (Hungarobelba)- Anterior notogastral margin truncate or rounded, with or without tubercles and ridges, setaedistributed across notogaster; costulae and tectopedal fields present or absent; 4-6 pairs ofgenital setae (Fig. B1.22B) ....................................................................................... OppioideaFigure B1.22Pteromorphs present, lamellae usually present, octotaxic system usually present20. Pteromorphs variously formed, but not both ear-like and movable (Fig. B1.23A) ................. 22- Pteromorphs large, ear-like and movable (Fig. B1.23B) ........................................................... 21136Figure B1.23

Almanac of Alberta Oribatida 2.3 13 January 201321. Lamellae present, although usually not well developed, on margins of prodorsum; sacculate(Fig. B1.24A) ........................................................................ Oripodoidea (Parakalummidae)- Lamellae absent, prodorsum with 1-2 lineae (L, S), with porose areas (Fig. B1.24B)............................................................................................................................. GalumnoideaFigure B1.2422. Notogaster with octotaxic system of porose areas (sometimes reduced to one pair) orsaccules; ornamentation various; in many habitats (Fig. B1.25A) .......................................... 23- Notogaster without porose areas or saccules and with distinctive pebbly ornamentation; aquaticmites characteristic of peatlands (Fig. B1.25B) .......................... Hydrozetoidea (Limnozetes)Figure B1.25137

Almanac of Alberta Oribatida 2.3 13 January 201323. Cerotegument thin; mites usually with clean, shiny surface, rarely with thin, dullcerotegument; chelicerae normal chelate-dentate (Fig. B1.26A) ............................................ 24- Cerotegument thick and blocky or raised; mites dull and often with adherent soil; mouthpartsoften pelopsiform (chelate-dentate in Propelops, Unduloribates) (Fig. B1.26B)....................................................................................................................... PhenopelopoideaFigure B1.2624. Lamellae with or without a translamella and usually narrow and well separated along theirlength with short narrow, cusps (rarely indistinct, costula-like), but if broad cusps are present,then they are joined by a translamella (Latilamellobates) and the distal margins may bedentate (Dentizetes); pteromorphs without knife-like process (Fig. B1.27A-B) ..................... 27- Distinct translamella absent and lamellae broad and covering most of prodorsum, either fused,contiguous, or overlapping medially; pteromorphs with or without knife-like process (Fig.B1.27C).................................................................................................................................... 25138

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B1.2725. Lamellae strap-like and separate to fused basally; lamellar tips either separate and tapering toa lateral cusp or bifurcate around lamellar seta (le); interlamellar seta (in) well developedusually longer than sensillus; pteromorphs with or without knife-like process (Fig. B1.28A)26- Lamellae completely fused medially and roof-like over prodorsum; lamellar tips indistinct;interlamellar seta (in) minute or well developed and longer than sensillus; pteromorphswithout knife-like process (Fig. B1.28B) ............................... Achipterioidea (Tegoribatidae)139Figure B1.28

Almanac of Alberta Oribatida 2.3 13 January 201326. Lamellar tips tapering obliquely to a lateral tooth, lamellar seta (le) inserted near medianmargin; genu IV elongate and concave dorsally, typically as long or longer than tibia IV;pteromorph with or without a knife-like humeral process; cerotegument thin (cuticle shiny) torelatively thick and pebbly (Fig. B1.29A) ............................. Achipterioidea (Achipteriidae)- Lamellar tip usually prolonged into a long tooth on either side of the lamellar seta (le) (ifobliquely truncate, then cerotegument has coarse pustules); genu IV not concave dorsally andmuch shorter than tibia IV; pteromorph without a knife-like humeral process; cerotegumenttypically with spherical pustules arising from minute pits (Fig. B1.29B) ......... OribatelloideaFigure B1.2927. Tutorium and genal incision present on prodorsum; lamellae usually with distinct cusps;genital plates usually with 6 pairs of setae (Latilamellobates has 4-5 pairs) (Fig. B1.30A) ................................................................................................................................. Ceratozetoidea- Tutorium usually absent, genal incision absent; lamellae usually without distinct cusps, butsometimes broadened distally; genital plates usually with 4 pairs of setae, but 5 or 6 pairs insome groups (Fig. B1.30B).......................................................................... Oripodoidea (part)140

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B1.30Hermannielloidea Grandjean, 1934 (ITIS 733353)(Back to Key to Brachypylina)Hermanniellidae Grandjean, 1934 (ITIS 733422)Hermanniella Berlese, 1908 (ITIS 733712)Diagnostic characters: Notogaster dome-like, with large lateral gland spouts and covered by theclosely adherent tritonymphal exuviae.Also Known As: none.Type species: Hermanniella granulata Nicolet, 1855World species: ~35Comments: The enlarged, spout-like openings on the lateral aspect of the dome-shapednotogastral shield are distinctive.Canadian species listed on DOC (bold = AB): Hermanniella occidentalis Ewing, 1918; H.robusta Ewing, 1918; Hermanniella sp.; H. subnigra (Ewing, 1909)141

Almanac of Alberta Oribatida 2.3 13 January 2013Hermanniella robusta Ewing, 1918 (ITIS 737235)Also Known As: Hermanniella punctulata robusta Ewing, 1918;ABMI code/Common name: HERMROBDiagnostic characters: ventral length 600-800; cerotegument tuberculate, foveolate, underlyingpunctae irregular ovals with 1-3 pores (up to 5 when several fused); tritonymphal setae(mostly 80-115, most posterior pair 60-65) with short, serrate barbs; prodorsum withmound-like tubercles laterad costula-like ridges that run to le and anterior to raisedbothridia in (150-180), bo (130-155), le (100-110) all straight, thick, barbed; ro (~60) finer,acuminate, curved; tarsal claws with basal spur; 6 pairs genital setae, g4 offset laterally,others on medial margin.Overview: All collections appear to represent a single species, most likely this is H. robustaEwing sensu Woolley (1957): ‘800 long, prodorsum with prominent ‘humps’, shelf anteriorto and dorso-median trough between cup-like bothridia, middle pair of genital setae (4 pairsvisible?) removed from margin’; posterior median setae are shorter, but not usually spinelike(but see 514 specimens).Barcodes:ID Check: Determination by DEW based on Woolley (1957), Aoki (1965).Similar taxa: Hermanniella punctulata Berlese, 1910; H. occidentalis Ewing, 1918 is 666 longand has rounded, relatively inornate prodorsum with sessile bothridia; 4th pair of mediansetae [posterior] are spine-like & genital setae are all aligned on the medial margin.ABMI Site Records: 2007: 359, 389, 512, 514, 545, 574, 586, 600,63 2, 664, 792, 793, 825,BOG5, BOG6, BOG7. 2008: 688, 690, 720, 719, 975, 899, 1008, 1379, BOG3, BOG4,SL12, UPL1. 2009: 499, 508, 538, 539, 559, 560, 568, 569, 881, 916. 2010: 151, 875, 892,1142, 1175, 1208, ALPAC-1, ALPAC-2, ALPAC-4, ALPAC-5, ALPAC-8, ALPAC-10,ALPAC-12, ALPAC-13, ALPAC-14, ALPAC-16, OG-910-1, OG-943-1, OG-1171-1.142

Almanac of Alberta Oribatida 2.3 13 January 20132011: 452, 968, 984, 1071, 1105, 1106, 1138, 1138, A637-2, A692-1, A692-2, A761-2,A761-3, A761-4.DOC (1/2008): [+other] Distribution: AB, BC; [Moose Pasture Research Site 8 km W Chipman,AB (53.656667, -112.759444), OR]Images:Ecology: Associated with mesophilous habitats and peatlands (Behan-Pelletier & Bissett 1994).Gut contents have brown hyphae, coarse organic material,Literature: Woolley (1957); Aoki (1965); Marshall et al. (1987).Back to Table of ContentsNeoliodoidea Sellnick, 1928(Back to Brachypylina Key)Neoliodidae Sellnick, 1928Platyliodes Berlese, 1916Diagnostic characters: Notogaster flattened with 4 pairs of setae (2 lateral pairs, 2 posteriorpairs) covered by scalps; lamellar seta spine-like, on apophysis; rostral setae flattened;genital shield with transverse division.Also Known As: none.Type species: Nothrus doderleini Berlese, 1883World species: ~7Comments: Arboreal.Canadian species listed on DOC (bold = AB): Platyliodes macroprionus Woolley & Higgins,1969; P. scaliger (C.L. Koch, 1839); Platyliodes sp.Platyliodes scaliger (C.L. Koch, 1839) (1840)Also Known As: Nothrus scaliger CL Koch, 1839ABMI code/Common name: PLATSCADiagnostic characters: Notogaster flattened; notogaster completely covered by scalps; medialpair of posterior setae 2-3x longer than outer pair.Overview: This mite inhabits tree trunks and branches and is unlikely to show up in soil organicsamples.Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.143

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: AB [Holarctic; Edmonton River Valley 2009].Images:Ecology: This arboreal mite inhabits moss and bark in mesophilous habitats and peatlands.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Behan-Pelletier & Bissett(1994); Weigmann, (2006).Back to Table of ContentsPlateremaeoidea Trägårdh, 1931(Back to Key to Brachypylina)Gymnodamaeidae Grandjean, 1954 (ITIS 733429)Comments: Five of the 8 genera of Gymnodamaeidae known from North America have beencollected in Alberta and at least two of these collections represent new species. Walter (2009)reviewed and revised these genera and challenged several questionable identifications fromthe literature [species in square brackets below]. Common name = Hatless mites.B2. Key to genera of Gymnodamaeidae in Alberta1. Genital and anal plates share a common opening, joined by soft cuticle; preanal organ hingedto spurs from ventral plate (Fig. B2.1A) ................................................................................ 3- Genital and anal plates separated by a distinct band of sclerotized cuticle (ano-genital bridge)under which the preanal organ is inserted (Fig. B2.1B) ......................................................... 2Figure B2.1144

Almanac of Alberta Oribatida 2.3 13 January 20132. Posterior notogastral setae h1 and p1 inserted on strong apophyses; 7 pairs of genital setae, g2+/- laterad g1 near anterior margin of shield (Fig. B2.2A) .................. Jacotella Banks, 1947- Posterior notogastral setae sessile or inserted on weak apophyses; 6 pairs of genital setae, g2inserted posterior to g1 (Fig. B2.2B) ............................................ Joshuella Wallwork, 1972Figure B2.23. Posterior notogastral seta h2 inserted anteriad lyrifissure ip, and longer than h1 or p1; posteriornotogastral setae sessile or on weak apophyses (Fig. B2.3A) ................................................ 4- Posterior notogastral seta h2 inserted posteriad to mesad ip, subequal to h1, p1, all on strongapophyses (Fig. B2.3B) ............................................................. Roynortonella Walter, 2009Figure B2.34. Notogaster with smooth rim and anterior median patch of pebble-like tubercles, without raisedpattern of ridges (Fig. B2.4A) .................................................. Pleodamaeus Paschoal, 1982- Notogaster without anterior median patch of rounded tubercles, with lateral folds and medianpattern of raised ridges (Fig. B2.4B) ............................... Gymnodamaeus Kulczynski, 1902145

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B2.4Gymnodamaeus Kulczynski, 1902 (ITIS 733750)Diagnostic characters: large gymnodamaeids with the inner margin of genital plates smooth;genital and anal plates within common opening; borders of epimere II-III smooth; femur IVwith 1-2 setaeAlso Known As: Heterodamaeus Ewing, 1917; additionally currently generic definitions varywidely such that species of Allodamaeus, Arthrodamaeus, Johnstonella, Nortonella,Odontodamaeus and Pleodamaeus are treated as Gymnodamaeus by some workers.Type species: Damaeus bicostatus Koch, 1935World species: ~13Comments: Apparently, the type is lost and two superficially similar species may have been usedto redescribed G. costatus by various authors (Woas 1992)Canadian species listed on DOC (bold = AB): Gymnodamaeus bicostatus (C.L. Koch, 1835); G.ornatus Hammer, 1952; G. saltuensis Paschoal, 1982; Gymnodamaeus sp. BC AB MB ONNS; G. taedaceus Paschoal, 1982; G. victoriae Paschoal, 1982[Gymnodamaeus bicostatus (C.L. Koch, 1835)]Also Known As: Damaeus bicostatus Koch, 1935; not Damaeus bicostatus Berlese (1886)ABMI code/Common name: GYMNBISDiagnostic characters: Anal and genital openings with a narrow, but complete ano-genitalbridge; median prodorsal tubercle poorly developed, not clearly bilobed; le shorter than ro.Overview: This species does not occur in North America according to Paschoal (1982) and theDOC record is based on a specimen he subsequently used as the holotype of146

Almanac of Alberta Oribatida 2.3 13 January 2013Gymnodamaeus taedaceus Paschoal, 1982. However, the type of G. taedaceus is badlysmashed and Paschoal’s description has numerous misinterpretations. See also commentsunder G. ornatus. All three species reported from Alberta are very similar and there is ahigh likelihood that all represent the same species (see Walter (2009)).Barcodes: none.ID Check: Determination by DEW based on Woas (1992), Weigmann 92006), Paschoal (1982a);Walter (in prep.), examination of voucher in CNC.Similar taxa: Gymnodamaeus ornatus Hammer, 1952, is possibly the same species.ABMI Site Records: Not present in ABDOC (1/2008): [+other] Distribution: AB [none – see above]; [Holarctic]Images:Ecology: Specimens have been found in the feathers of birds in Russia, a possible means of longdistance dispersal (see Krivolutsky & Lebedeva 2004).Literature: Powell & Skaley (1975); Paschoal (1982a); Marshall et al. (1987); Woas (1992);Weigmann & Mourek (2008); Walter (2009).*Gymnodamaeus cf ornatus Hammer, 1952 (ITIS 733750)Also Known As: Allodamaeus ornatus (Hammer, 1952);ABMI code/Common name: GYMNORN; Ornate Hatless MiteDiagnostic characters: venter 580-660 long, red-brown; leg I (560-600) almost as long as body,leg IV (700-800) longer. Prodorsum (230-267) with convex tip; bo (163) barbed, with longstalk and flattened head; interlamellar setae minute (7) on converging ridges meeting justposteriad subcircular median tubercle; le extends past tip of rostrum, ro falls just short oftip. Genital shields (112-120) with 7 pairs genital setae; femur IV with 2 setae;cerotegument of medium rounded granules with large centro-anterior raised area of largecells on notogaster; ventral plate with pair of large lateral pits.Overview:Barcodes: 1085NE78.1-4: AMOR366-09 (658 bp), AMOR367-09 (658 bp), AMOR368-09 (658bp), AMOR369-09 (658 bp)ID Check: Determination by DEW based on Hammer (1952), Paschoal (1982a), Walter (2009),and syntype series;. 857 SE A3 III compared to syntypes & checked by VBP April 2008;975 SE 3, 1009 NW 34 compared to syntypes October 2008.Similar taxa: Hammer (1952) distinguished G. ornatus from G. bicostatus by the former havinga “distinct pattern on the hysterosoma having oval and crescent-shaped areas bordered bysmooth ridges” (p. 28) and longer lamellar setae. She also noted the presence of “smallwedges” (p. 28) in the ano-genital region (a narrow, but complete bridge is present in G.bicostatus according to Woas (1992)). Gymnodamaeus bicostatus is variously depicted aswithout a notogastral pattern (Paschoal 1982a), with a faint U-shaped pattern (Weigmann2006), or with a U-and-branched pattern (Woas 1992) very similar to most G. ornatus147

Almanac of Alberta Oribatida 2.3 13 January 2013specimens from Alberta. The notogastral pattern that Hammer (1952, fig. 35a) showscontains more complete cells than are usually present in G. ornatus in Alberta, but myexamination of the syntype series suggests that some of the ‘crescent-shaped areas’ are anartifact of compression breaking apart the cerotegument. Alberta specimens are somewhatshorter than the length given by Hammer (670-840), but otherwise are indistinguishablefrom the syntype specimens in the CNC. Aoki & Fujikawa (1971) treated G. ornatusHammer as a species of Allodamaeus (Plateremaeidae) (not A. ornatus Balogh & Csiszar,1963 = tuberculatus).ABMI Site Records: 2007: 359, 543, 586, 616, 618, 632, 664, 792, 793, 825, 857, UPL7. 2008:688, 720, 866, 867, 899, 975, 1009, 1085, 1116, 1191, 1192, SL11, UPL1. 2009: 15, 498,539, 1491, 1510. 2010: 151, 890, 1169, 1201, 1203, ALPAC-2, ALPAC-12. 2011: 672,964, 984, 1024, 1057, 1058, 1125, 1126, 1157, 1158, 1159, 1332, 1333, 1334, A692-2, OG-1160-1, OG-1212-1, OG-1282-1, OG-1283-1, OG-ABMI-1275-1.DOC (1/2008): [+other] Distribution: YT, NU, NT, ON; [Moose Pasture Research Site 8 km WChipman, AB (53.656667, -112.759444); Onoway (53.77N, 114.06W)]Images: SEM (MP, Onoway)Ecology: The type series of 7 adults was collected from dead leaves on an intermixture ofcushion plants (Pulsatilla, Saxifraga tricuspidata, Artemisia frigida) on a south slope atReindeer Station (62° 42’N, 134° 08’W), Yukon Territory near the northern limit of theboreal forest.Literature: Hammer (1952); Marshall et al. (1987); Paschoal (1982a); Walter (2009).[Gymnodamaeus taedaceus Paschoal, 1982]Also Known As: Gymnodamaeus bicostatus (C.L. Koch, 1835) in Powell & Skaley (1975).ABMI code/Common name: GYMNTAEDiagnostic characters: length 720 (prodorsum 254, notogaster 466x440); rostrum with flat tip;bo 176 long. Notogaster smooth, ia on salience, ip submarginal, h1 (37) about twice lengthof h1-h1 (20); p1 on small tubercles; anal shield (149), genital (119); Tarsus I (175); Tibia I(187); Genu I (78); Femur I (276); Tarsus II (108); Tibia II (90); Genu II (52); Femur II(202)Overview: This mite was described from a single female from Alberta “in duff layer aroundPinus contorta” and not illustrated. The type specimen is crushed and most of the characterscannot be discerned. Bayartogtokh & Schatz (2009) consider G. taedaceus to beunrecognizable, and suggested that it should be considered a species inquirendae. Afterexamination of the holotype, I completely agree (see Walter (2009)).Barcodes: none.ID Check: Determination by DEW: type (marked Gymnodamaeus bicostatus) at CNC 23October 2008; ventral mount broken into various pieces; CNC 69-497; Alberta 39 45;24.iv.1969; J.M. Powell; duff layer around Pinus contorta; 69A-0 893 13Similar taxa:148

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: This species cannot be recognized and is most likely equivalent to G.ornatus (see Walter 2009).DOC (1/2008): [+other] Distribution: ABImages:Ecology:Literature: Powell & Skaley (1975) ; Paschoal (1982a); Marshall et al. (1987); Walter (2009).Jacotella Banks, 1947 (ITIS 733751)Type species: Gymnodamaeus quadricaudiculus Jacot, 1937Diagnosis: Gymnodamaeid mites with the interlamellar setae inserted between the bothridia andto either side of a low median tubercle; notogastral seta h2 absent; remaining posteriornotogastral setae (h1, p1-3) inserted on strong apophyses; h1 much longer than others, usuallycoiled and whip-like (at least in alcohol-collected specimens) and with apophyses fused to veryclosely inserted; p1 setae longer than p2-3 and inserted near h1; 7 pairs of genital setae.Notogaster flattened, but without raised rim, anterior margin with a pair of weakly defined lateraltubercles, cerotegument pustulate, with or without a raised ovoid cell with 2-3 pairs of lateralarms and a posterior arm; four pairs of posterior notogastral seta (h1; p1-3) on apophyses.Prodorsum covered by pustulate cerotegument, with 5 pairs of setae; sensillus with broadlyexpanded head, lamellar setae inserted on short apophyses antero-dorsally on the rostrum.Ventral plate covered in postulate cerotegument; lateral pits not apparent; genital and analopenings separated by a band of cuticle that covers the articulation of the preanal shield; 7 pairsof genital setae; g2 displaced laterally, g1-2 are directed anteriorly. Legs covered in pustulatecerotegument; femur IV with 2 setae; tarsal pedicels short, barely longer than small claws.*Jacotella quadricaudicula (Jacot, 1937) (ITIS 737510)Also Known As: Gymnodamaeus quadricaudicula Jacot, 1937ABMI code/Common name: JACOQUA / Four-tailed Hatless MiteDiagnostic characters: ventral length 390-420, light brown; antero-median cell of notogastralcerotegument with posterior stem, granules mound-shaped, slightly taperingOverview:Barcodes:ID Check: Determination by DEW based on specimens in the CNC (Paschoal 1983b), Walter (inprep.).Similar taxa:ABMI Site Records: 2007: none. 2008: 866. 2009: [1192 Residuals]. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: NBImages:Ecology: The female from ABMI 866 is carrying 3 eggs.149

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: (Paschoal 1983b); Marshall et al. (1987); Walter (2009).Joshuella Wallwork, 1972 (ITIS 733752)Diagnostic characters: small gymnodamaeids with ip very long, 6 pairs genital setae, andcerotegument with large granules and folded into longitudinal ridges on the notogaster.Also Known As: none.Type species: Joshuella striata Wallwork, 1972World species: 3 species from North America: Joshuella striata Wallwork, 1972; Joshuellaagrosticula Paschoal, 1983; Joshuella bicentenaria Paschoal, 1983Comments:Canadian species listed on DOC (bold = AB): Joshuella sp**Joshuella agrosticula Paschoal, 1983Also Known As: Prairie Joshua Tree MiteABMI code/Common name: JOSHAGR / Grassland Hatless MiteDiagnostic characters: ventral length 300-320, yellow-brown; ip ~17; legs I & IV subequal(200), shorter than body; 6 pairs genital setae; bo barbed and broadly inflated in distal half;cerotegumental tubercles spherical, mostly 3-5 in diameterOverview: This very small, light brown mite is a grassland inhabitant and was described from theshortgrass prairie in Colorado. The ABMI records were the first for the species in Canada,but subsequent work (Walter 2009) has shown that the distribution of the mite extends intothe Yukon.Barcodes:ID Check: Determination by DEW based on Paschoal (1983c). 1526 NW B2 and 1436 SE 6compared to material in CNC October 2008.Similar taxa:ABMI Site Records: 2007: 1526. 2008: 1436. 2009: (1612 residuals), 1629, 72L-2. 2010: 1443,1465, OG-1484-1. 2011: none.DOC (1/2008): [+other] Distribution: [Dinosaur Provincial Park] Joshuella sp .reported from BC.Images:Ecology: Gut contents include brown fungal hyphae and arthroconidia. Gravid females can carryup to 2 relatively large eggs.Literature: (Paschoal 1983c); Marshall et al. (1987); Walter (2009).150

Almanac of Alberta Oribatida 2.3 13 January 2013Roynortonella Walter 2009 (RAM 99000138)Diagnostic characters: small, with 2 pairs of adanal setae; without complete transverse rostralridge (apo ro); lamellar setae (le) dorsolateral, projecting slightly beyond rostrum-tip.Bothridial seta large and dilated distally; lyrifissure ip long; notogastral setae h 2 present;tubercles bearing setae h 1 not coalescedAlso Known As: Gymnodamaeus, Paschoalia, Nortella, NortonellaType species: Gymnodamaeus gildersleeveae (Hammer, 1952)World species: 2-3Comments: Nortonella is preoccupied and has been replaced by Roynortonella. Another species,R. victoriae, is known from BC (Walter, 2009) and the European G. barbarossa maybelong to this genus.Canadian species listed on DOC (bold = AB): Nortonella gildersleeveae (Hammer, 1952)Roynortonella gildersleeveae (Hammer, 1952) (RAM 99000139)Also Known As: Gymnodamaeus gildersleeveae Hammer, 1952; Nortonella gildersleeveae(Hammer, 1952)ABMI code/Common name: ROYNGIL / Gildersleeve’s Hatless MiteDiagnostic characters: length 390-410, yellow-brown; cerotegument of conical, bullet-shapedtubercles, with cellular pattern on notogaster; in (18) inserted at medial bases of bothridia,bo (85-90) with stalk ~1/2 length, head flattened, densely barbed and broadly expanded; le(42) and ro (~48) curving toward rostral tip; ex about as long as le; legs I & IV shorter thanbody; 7 pairs of genital setae (anteriormost very difficult to see); posterior of notogasterwith 5 pairs of long, curved setae, anteriormost pair the longest (h2), curves laterally, others(h1, ps1-3) curve ventrallyOverview: bullet-shaped cerotegumental tubercles are distinctive; Nortonella is a homonym of atenthridinid genus (Özdikmen 2008)Barcodes:ID Check: Determination by DEW based on Hammer (1952), Walter (in prep.). 330 NWcompared to holotype and checked by VBP April 2008.Similar taxa: None of the other species attributed to Nortonella by various authors has acoalesced anal and genital opening; and therefore, they do not fit the generic description.ABMI Site Records: 2007: 330, 618. 2008: none. 2009: none. 2010: 892. 2011: none.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, MB, ON; [Moose Pasture Research Site8 km W Chipman, AB (53.656667, -112.759444); BC, UT, CO, WA]Images: SEM (MP)Ecology: The type collection was from moss, liverworts, and lichens under spruce with aVaccinium vitisidae understory near Yellow Knife, NT. Paschoal’s (1982b) collectionswere from a variety of coniferous litters from Colorado to Washington and in the151

Almanac of Alberta Oribatida 2.3 13 January 2013Okanagan. I have found the mite in bare spots in open areas on south slopes in aspenparkland.Literature: Hammer (1952); Paschoal (1982b); Marshall et al. (1987).***Roynortonella sp. 1 DEWAlso Known As: Gymnodamaeus sp. 1 DEWABMI code/Common name: NORTNS1 / Northern Hatless MiteDiagnostic characters: ventral length 410-490 (prodorsum~175), red-brown; cerotegument ofsmall (2-3 dia. on legs, 1-2 on notogaster) conical (morelliform) granules with large centroanteriorraised area on notogaster (absent in teneral individuals) and large, raised blob onprodorsum over oval (visible in teneral individuals); in short (10-13), thick and spine-like,on small tubercles anterior and medial to bothridia; bothridia directed dorsally, with smoothmargin, bo (~110) densely barbed along entire length, stalk ~1/3 rd length, geniculate, withlarge, speculate head; ro (~50) strongly curved mediad, reaches tip of rostrum; le on smalltubercles, curve ventrally; ex (~15); h1 (~23) curve ventro-laterad; r2 (25-28), r3 absent;ps1-3 minute, ps1 on small tubercle, ps2-3 +/- sessile; legs I (300) & IV (400) shorter thanbody; femur IV with 2 setae; 7 pairs genital setaeOverview:Barcodes:ID Check: Determination by DEW based on Walter (2009). 330 NE, 331 SW examined by VBPApril 2008.Similar taxa: Gymnodamaeus barbarossa Weigmann, 2006 has a similar arrangement of theinterlamellar setae and median prodorsal tubercle.ABMI Site Records: 2007: 330, 331, 358, 360, 389, 484, 585, 633, 823, BOG7, UPL5. 2008:412, 444, 719, 751, 901, 1007, BOG3. 2009: 32, 33, 508, 530, 881. 2010: 323, 354, 383,892. 2011: none.DOC (1/2008): [+other] Distribution: Gymnodamaeus sp. reported from AB, BC, MB, ON, NSImages: SEMs of ABMI 331.Ecology:Literature: Walter (2009); Walter (in prep.)Pleodamaeus Paschoal, 1982 (UBIO 94573816)Diagnostic characters: larger gymnodamaeids, notogaster with anterior patch of tubercles; setaeh 1 , p 1 and p 2 inserted on prominent vertical ridges on posterior margin of notogaster;femora IV with 2 setaeAlso Known As: GymnodamaeusType species: Gymnodamaeus plokosus Woolley & Higgins, 1973World species: 3152

Almanac of Alberta Oribatida 2.3 13 January 2013Comments:Canadian species listed on DOC (bold = AB): Pleodamaeus plokosus (Woolley & Higgins,1973); Pleodamaeus sp.***Pleodamaeus sp. 1 DEW (RAM 99000047)Also Known As:ABMI code/Common name: PLEOSP1Diagnostic characters: see Walter (in prep.)Overview: Pleodamaeus sp. reported from YT, [NM]. This is a new species in the process ofbeing described.Barcodes:ID Check: Determination by DEW based on Woolley & Higgins (1973); Walter (in prep.).Similar taxa: Pleodamaeus plokosus (Woolley & Higgins, 1973)ABMI Site Records: 2007: 359. 2008: none. 2009: none. 2010: none. 2011: 1024, 1126. 2012:none.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444), Onoway (53.77N, 114.06W), Edmonton River Valley]Images: SEM (MP, Onoway)Ecology:Literature: Woolley & Higgins (1973); (Paschoal 1983a); Marshall et al. (1987).*Pleodamaeus plokosus (Woolley & Higgins, 1973)Also Known As:ABMI code/Common name: PLEOPLO / Southern Hatless MiteDiagnostic characters: see Walter (in prep.)Overview: Syntype series at Ohio State University examined by DEW (July 2008).Barcodes:ID Check: Determination by DEW based on Woolley & Higgins (1973); Walter (in prep.).Similar taxa: Pleodamaeus sp. 1 DEWABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 1231. 2012:1580SEDOC (1/2008): [+other] Distribution: SK. [CNC collections; Waterton Lakes]Images:Ecology:153

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Woolley & Higgins (1973); (Paschoal 1983a); Marshall et al. (1987).Damaeoidea Berlese, 1896 (ITIS 733357)(Back to Key to Brachypylina)Damaeidae Berlese, 1896 (ITIS 7333431)Genera of Alberta DamaeidaeGenus Group Bingo Length Similar taxaBelba s.l. + d II-IV plumose PD, leg setae; bo club 450Quatrobelba + d II-IVDyobelba + d II-IIIEpidamaeus No d II-IVEpidamaeusHungarobelba 350Lanibelba + d III-IV Da, Sa large; in, bo, h1 whiplike; woolly 405-470B3. Key to Genera of Damaeidae in Canada1. Seta d present and coupled to solenidion on at least one of tibiae II-IV (Fig. B3.1A) ......... 4- All of tibiae II-IV without seta (d) coupled to solenidion (Fig. B3.1B) ...................................... 2Figure B3.12. Spinae adnatae absent (Fig. B3.2A) .......................... Epidamaeus (Akrodamaeus) Norton, 1978- Spinae adnatae present (Fig. B3.2B) ............................................................................................ 3154

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B3.23. Propodolateral apophysis P present posterior to leg I. Tarsi with a series of 3 accessory ventralsetae (posterior to pv and usually on the tarsal bulb). Large mites, usually over 600µ long andnearly black (Fig. B3.3A) ................................................................. Damaeus C.L. Koch, 1836- Propodolateral apophysis P present or absent. Tarsi with a pair of accessory ventral setae(posterior to pv and usually on the tarsal bulb). Smaller, usually light to medium brown incolor (Fig. B3.3B) ...................................... Epidamaeus Bulanova-Zachvatkina, 1957 (pars)Figure B3.34. Tibia II to IV with seta d+ solenidion present ......................................................................... 5- Seta d+ solenidion present only on tibia II-III or III-IV ......................................................... 75. Prodorsal and leg setae densely plumose; notogastral setae smooth (Fig. B3.4A) ............................................................................................................................ Belba von Heyden, 1826 s.l.- Prodorsal, leg, and notogastral setae barbed to simple, but never with long branches (Fig.B3.4B)........................................................................................................................................ 6155

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B3.46. Adults and immatures carrying organic debris. Trochanteral setation 1-1-2-2 (l’ present on IV);genual setation 4-4-3-3 ............................................................Belba (Protobelba) Norton 1978- Organic debris absent. Trochanteral setation 1-1-3-1 (seta d present on III); genual setation 4-4-4-4 (seta v” present on III-IV) ......................................................... Quatrobelba Norton, 19807. Seta d present on tibia III-IV. Spinae adnatae large (~35); opposed to large triangularprodorsal tubercle. Notogastral setae very long (>75), more or less blade-like, radial; bo, inelongate, whip-like, smooth; cerotegument highly filamentous, including around sensillus;reticulate scalps remnants may be present (Fig. B3.5A) ..................... Lanibelba Norton, 1980- Seta d present on tibia II-III. Spinae adnatae and other characters vary (Fig. B3.5B) ............. 8156

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B3.58. Leg IV >2x body length, femora 6-6-6-5, genua 4-5-3-3, tibiae 5-5-5-4; may carry scalps;spinae adnatae well developed; filamentous cerotegument ......................................................................................................................................................... Epidamaeus longitarsalis group- Leg IV less than twice length of body; spinae adnatae present or absent .................................... 99. Notogaster without organic debris. With or without small spinae adnatae. Prodorsum oftenwith several pairs of posterior tubercles or shelf-like ridge and/or a propodolateral apophysis(Fig B3.6A) ........................................................................................... Dyobelba Norton, 1978- Notogaster carrying organic debris. Spinae adnatae absent. Prodorsum with single pair ofposterior tubercles; without propodolateral apophysis (Fig. B3.6B) Caenobelba Norton, 1980Figure B3.6157

Almanac of Alberta Oribatida 2.3 13 January 2013Belba Heyden, 1826 s.l.Diagnostic characters: seta d present and coupled to solenidion on tibiae II-IV; spinae adnataeabsent (or present)Also Known As:Type species: Notaspis corynopus Hermann, 1804World species: ~40Comments: An unidentified species of Belba was reported from AB by Powell & Skaley (1975)in their study of arthropods found under rust-infected lodgepole pine, but this may refer to aspecies of Epidamaeus or Dyobelba. The only species I have seen in Alberta are referred toBelba because they retain a guard seta with the solenidion on tibiae II-IV, but do notresemble typical Belba (Belba) or Belba (Protobelba) and do not belong to Quatrobelba.Canadian species listed on DOC (bold = AB): Belba sp. [NB - Caenobelba alleganiensis Norton,1980 reported from YT, BC, ON]; also Belba (Protobelba) californica (Banks, 1904) BC,Belbodamaeus sp. YT, BC, and Hungarobelba sp. BC, AB.B3a. Key to species of Belba s.l. in Alberta1. Scalps carried; spinae adnatae absent; notogastral setae short, fine; sensillus strongly clubbed(Fig. B3a.1A) ................................................................................................. Belba sp. A DEW- Scalps absent; spinae adnatae present; most notogastral setae long (>70), curved, and with darksheaths (ps1-3 plumose); sensillus without distal club (Fig. B3a.1B)........... Belba sp. B DEW158Figure B3a.1

Almanac of Alberta Oribatida 2.3 13 January 2013***Belba sp. A DEWAlso Known As:ABMI code/Common name: BELBSP1Diagnostic characters: ventral length 440; cerotegument filamentous on prodorsum and legs,absent on notogaster; scalps carried; notogastral setae simple, c1-2 (~30-35) directedanteriorly; sensillus (75) clubbed and densely barbed; in (40-45) plumose except near base;leg setae plumose; tibia II-IV with duplexed solenidion (difficult to see amid plumosity andcerotegument) and dorsal seta; spinae adnatae absent; prodorsal tubercles not developed;trochanteral setation ?-?-2-1; femora 5-6-6-5; genua 4-4-4-4; tibiae 4(2); 491)-4(1)-4(1).Overview: An unidentified species of Belba was reported from AB by Powell & Skaley (1975)in their study of arthropods found under rust-infected lodgepole pine, but this may refer to aspecies of Epidamaeus or Dyobelba.Barcodes:ID Check:Similar taxa: see HungarobelbaABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 1261.DOC (1/2008): [+other] Distribution: AB, BC, QCImages:Ecology: The female carries two large eggs.Literature: Powell & Skaley (1975); Marshall et al. (1987).***Belba sp. B DEWAlso Known As:ABMI code/Common name: BELBSP1Diagnostic characters: ventral length 340; cerotegument filamentous on prodorsum and legs,and notogastral setae, pustulate on notogaster; scalps not carried. Notogaster with mostnotogastral setae long (~80), curved, smooth with black sheaths and covered in filamentouscerotegument; c1- 2 (~70-75) directed anteriad; la, lm (~80), lp, and h1-3 directedposteriad; ps1-3 coarsely plumose, curved anteriad along edge of notogaster. Prodorsumwith ridge between bothridia; sensillus (~70) smooth, covered in filamentous cerotegument;in (~40) curved, brown, coarsely plumose; Sa-Sp triangular; P apparently absent. Leg setaecurved, brown, coarsely plumose; tibia II-IV with duplexed solenidion (difficult to see amidplumosity and cerotegument) and dorsal seta; spinae adnatae (10) directed anterolaterad tobothridium; prodorsal tubercles not developed; trochanteral setation 1-?-2-1; tibiae 4(2)-4(1)-4(1)-4(1); genua 4-4-3-4; femora 7?-6?-?--IV.Overview: An unidentified species of Belba was reported from AB by Powell & Skaley (1975)in their study of arthropods found under rust-infected lodgepole pine, but this may refer to a159

Almanac of Alberta Oribatida 2.3 13 January 2013species of Epidamaeus or Dyobelba. This mite superficially resembles a species ofHungarobelba, but does not fit the definition of that genus in Miko & Travé (1996).Barcodes:ID Check:Similar taxa: see HungarobelbaABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, BC, QC [Dinosaur Provincial Park]Images:Ecology: The gravid female carries a single large egg.Literature: Powell & Skaley (1975); Marshall et al. (1987).Dyobelba Norton, 1979 (RAM 99000152)Diagnostic characters: seta d+ solenidion present only on tibia II-III; femoral setation 7-6-4-4;genual setation 4-4-3-3; without conspicuous scalps, but may carry debris on notogaster;with or without small spinae adnatae; prodorsum often with several pairs of posteriortubercles and/or a small propodolateral apophysisAlso Known As: Subbelba Bulanova-Zachvatkina, 1967Type species: Oribata carolinensis Banks, 1947World species: ~12Comments: Treated as a subgenus of Subbelba Bulanova-Zachvatkina by Subías (2004)Canadian species listed on DOC (bold = AB): w sp. BCB3b. Key to species of Dyobelba in Alberta1. Propodolateral area without apophysis or tubercle; tibia IV with 3 setae (+ solenidion);cerotegument granular to finger-like; in short, not whip-like, spinae adnatae present;prodorsal tubercle usually absent or poorly expressed .............................................................. 2- Propodolateral area with tooth-like tubercle bearing seta on coxa II; tibia IV with 4 setae (+solenidion); cerotegument filamentous; in almost as long as bo, whip-like, spinae adnataeabsent; prodorsum with triangular tubercle opposed to Da; 390-450 ......Dyobelba sp. 3 DEW2. Notogastral setae long (50-70), smooth; c1 closely inserted and directed laterally, c2, ladirected anteriorly; cerotegument of coarse granules; 420-500 ............... Dyobelba sp. 1 DEW- Notogastral setae short (30-45), barbed, not reaching next in series, c1 not closely inserted;cerotegument of finger-like projections; 480-500 ....................................Dyobelba sp. 2 DEW160

Almanac of Alberta Oribatida 2.3 13 January 2013***Dyobelba sp. 1 DEW (RAM 99000082)Also Known As: ABMI code/Common name: DYOBNS1Diagnostic characters: Ventral length 420-500, leg IV 600 (excluding claws). Cuticle denselymicrotuberculate; cerotegument with coarse (mostly 2-5 diameter) granules. Prodorsumwith short, low tubercle Ba; bothridium with large, funnel-like rim; bo (~250) smooth,whip-like; in (45-50) smooth to sparsely barbed; ex (~35), le (~80), ro (~60) all curved,tapering, simple except le has with 1-3 long basal barbs. Spinae adnatae very short (~5-10),subtriangular; notogastral setae smooth, curved, c1 (~60) directed laterally, c2, la directedanteriorly. Tubercle Sa large, spike-like; Sa poorly developed knob; strong, tubercle diabsent anterolaterad coxa IV. Tibia IV long (2.5x genu), straight, narrow portion ~ swollen,solenidion very long, whip-like. Trochanter IV with 1 seta. epimeral setation 3-1-3-4.Overview:Barcodes:ID Check: Determination by DEW based on Norton (1979), Norton & Ryabinin (1994),Bayartogtokh & Norton (2007).Similar taxa: Easily confused with species of Epidamaeus. Superficially similar to Epidamaeusarcticolus, but cerotegument is microtuberculate with larger irregular and mound-liketubercles; seta d complexed with solenidion on tibiae II-III. Dyobelba sp. 2 DEW has veryshort, barbed setae.ABMI Site Records: 2007: 618, 664, 1102, 1134, 1135. 2008: 867, 868, 1043, 1402. 2009:1491. 2010: 1169, 1201, 1208. 2011: 1126, 1072, 1136, 1231. 2012: 492NW, 523NE-NW,1580SW.DOC (1/2008): [+other] Dyobelba sp. reported from BCImages:Ecology: Bisexual. gravid females carry at least 4 large eggs. Gut contents contain primarilydematiaceous fungal hyphae.Literature: Norton (1979); Marshall et al. (1987); Norton & Ryabinin (1994); Bayartogtokh &Norton (2007).***Dyobelba sp. 2 DEW (RAM 990000xx)Also Known As: ABMI code/Common name: DYOBNS2Diagnostic characters: Ventral length 480-500. Cuticle densely microtuberculate; cerotegumentwith dense finger--7),conical tubercles on notogaster. Prodorsum with short, low tubercle Ba; bothridium withlarge, funnel-like rim; bo (212-250) smooth, whip-like in (45-50) smooth to sparselybarbed; ex (~33), le (~85), ro (~65)all curved, tapering, barbed. Spinae adnatae short (~15);notogastral setae very short (30-45), not passing next seta in series, barbed. Tubercle Spacuminate, Sa poorly developed; strong, tubercle di present anterolaterad coxa IV.Trochanter IV with 1 seta. epimeral setation 3-1-3-4.Overview:161

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: Determination by DEW based on Norton (1979), Norton & Ryabinin (1994),Bayartogtokh & Norton (2007).Similar taxa: This mite is similar to Dyobelba kushiroensis Enami & Aoki, 2001, fromHokkaido, Japan, but the Japanese species is much larger (ventral length 592-643); has amuch longer sensillus (~320); shorter interlamellar seta (~21); smooth, attenuateexobothridial seta; blunt tubercle Sp; and 2 setae on trochanter IV. Easily confused withspecies of Epidamaeus. Superficially similar to Epidamaeus arcticolus, but cerotegument ismicrotuberculate with larger irregular and mound-like tubercles; seta d complexed withsolenidion on tibiae II-III. Dyobelba sp. 1 DEW has long, smooth notogastral setae.ABMI Site Records: 2007: none. 2008: none. 2009: 1529. 2010: none. 2011: none.DOC (1/2008): [+other] Dyobelba sp. reported from BCImages: SEM (1529)Ecology: Bisexual. Gravid females carry at least 8 large eggs. Gut contents contain primarilypigmented fungal hyphae.Literature: Norton (1979); Marshall et al. (1987); Norton & Ryabinin (1994); Bayartogtokh &Norton (2007).***Dyobelba sp. 3 DEW (RAM 990000xx)Also Known As: ABMI code/Common name: DYOBNS3Diagnostic characters: Ventral length 390-450. Cuticle densely microtuberculate; cerotegumentfilamentous to erinose on prodorsum, sensillus, legs, setae; more sparse on notogaster.Prodorsum with strongly developed Da opposed to large, triangular notogastral tubercle; bo(>150) smooth, whip-like, covered in cerotegument; in (~100) whip-like, with a few dorsalbarbs; P strong, tooth-like, directed anterolaterally from coxa II. Spinae adnatae absent;notogastral setae (60-75) dark, sheath-like, with a few dorsal barbs; c1-2 directed anteriorly,others laterally or posteriorly. Leg setation; trochanters 1-?-3-3; femora 9-9-8?-9; genua4(1)-4(1)-4(1)-4; tibiae 4(2)-4(1)-4(1)-4(1).Overview:Barcodes:ID Check: Determination by DEW based on Norton (1979), Norton & Ryabinin (1994),Bayartogtokh & Norton (2007).Similar taxa: This mite keys to Dyobelba kushiroensis Enami & Aoki, 2001, from Hokkaido,Japan, but bears little similarity to it.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Dyobelba sp. reported from BC [Edmonton River Valley]Images: SEM (1529)Ecology: Bisexual.162

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Norton (1979); Marshall et al. (1987); Norton & Ryabinin (1994); Bayartogtokh &Norton (2007).Epidamaeus Bulanova-Zachvatkina, 1957 (RAM 99000080)Diagnostic characters: tibiae II-IV all lack seta (d) coupled to solenidion; spinae adnatae present(absent in some species outside of Alberta).Also Known As: Metabelbella (Akrodamaeus) Norton, 1979; also various species were firstdescribed under Belba or Damaeus.Type species: Oribata bituberculata Kulczynski, l902World species: >50; 25 described species from North America are listed in Marshall et al. (1987).Comments: Subías (2004) differs considerably from other authors in his generic placements formany groups including the Damaeidae, where Epidamaeus species reside under Damaeus(Epidamaeus) Bulanova-Zachvatkina, 1957 or Metabelbella (Akrodamaeus) Norton, 1979.Canadian species listed on DOC (bold = AB): Epidamaeus arcticolus (Hammer, 1952); E. bakeri(Hammer, 1952); E. canadensis (Banks, 1909); E. coxalis (Hammer, 1952); E. floccosusBehan-Pelletier & Norton, 1985; E. fortispinosus Hammer, 1967; E. koyukon Behan-Pelletier & Norton, 1985; E. longiseta (Banks, 1906); E. longitarsalis (Hammer, 1952); E.mackenziensis (Hammer, 1952); E. nasutus Behan-Pelletier & Norton, 1985; E. puritanicus(Banks, 1906); Epidamaeus sp.; E. tenuissimus Hammer, 1967; E. tritylos Behan-Pelletier& Norton, 1983163

Almanac of Alberta Oribatida 2.3 13 January 2013Alberta EpidamaeusSpecies Group Bingo Length Similar speciessp. 3 DEW leg IV 2x body scalps, Sa large 600-700 sp. 10 DEWsp. 7 DEW P present, spine-like whip-like setae, PD tubercle, woolly 445-465 sp. 8 DEWsp. 10 DEW 1c on lateral tubercle dark, strongly barbed setae; c1-2 laterad; long legs 490-570 sp. 3 DEWsp. 4 DEW Prodorsal tubercles Ba+Da; knife-like setae; +VMa-VMp; -Va-Vp 480-500 tritylostritylos Prodorsal tubercles Ba+Da; knife-like setae; -VMa-VMp; +Va-Vp 528-627 sp. 4 DEWfortispinosus Prodorsal tubercles Da opposed to Dp; knife-like setae 630-795 tritylos, sp. 4canadensis Prodorsal tubercles bo swollen distally, woolly 480-520 sp. 9 DEWfloccosus Prodorsal tubercles radial, black-sheath setae; Sa small; Ba+ridge 390-434 Lanibelbasp. 1 DEW Prodorsal tubercles bo smooth whip; setae short, smooth; legs bead-like 330-430 arcticolasp. 8 DEW Prodorsal tubercles whip-like setae, c1-2 anteriad, wooly 400-500 floccosus, arcticolasp. 9 DEW Prodorsal tubercles bo setform, barbed; DS barbed; conical cero 420-520 canadensisarcticola Prodorsal tubercles minute Sa, long legs, c1 laterad, bo barbed 480-560 sp. 1 DEWcoxalis No PD tubercles trochanter IV, c1-2 anteriad, lightly barbed 359-430 sp. 1 DEWsp. 5 DEW No PD tubercles in, bo, dorsal setae barbed; c1 anteriad; Sa large 450-510 coxalissp. 6 DEW No PD tubercles radial DS long, barbed; Sa large; +Va-Vp 520 koyukon, tritylossp. 2 DEW No PD tubercles size, red-brown, long smooht setae; sticky + scalps 700-800 koyukonkoyukon No PD tubercles sub-knife-like setae, size 560-630 sp. 2 DEWB3c. Key to species of Epidamaeus in and around Alberta[Back to generic key]1. Leg IV less than 2 times body length ......................................................................................... 2- Leg IV twice or more length of body ........................... Epidamaeus longitarsalis species group2. Propodolateral apophysis P present or seta 1c on tubercle in similar position (Fig. B3c.1A) .... 3- Propodolateral apophysis P absent; 1c not on large tubercle (Fig. B3c.1B) ................................8Figure B3c.1164

Almanac of Alberta Oribatida 2.3 13 January 20133. Spinae adnatae absent [ON, WA, USA east of Rocky Mts] (Fig. B3c.2A) ............................................................................................................................ Epidamaeus longiseta (Banks, 1906)- Spinae adnatae present (Fig. B3c.2B) .......................................................................................... 4Figure B3c.24. Propodolateral apophysis P short, spine-like and situated between coxae I-II or seta 1c ontubercle in same position; spinae adnatae large; Vp absent or not bearing epimeral seta;ventral length >400 .................................................................................................................... 5- Propodolateral apophysis P large, tubercle-like and arising from coxa II; spinae adnatae smalland spine-like; Vp bearing epimeral seta; length 30long) and finger-like; Vp not bearing epimeral seta (see also Epidamaeus sp. 8 DEW, similar,but lacks P) .......................................................................................... Epidamaeus sp. 7 DEW- Epimeral seta 1c inserted on laterally projecting tubercle; notogastral setae all strongly barbed,c1 closely inserted, directed laterad, c2 widely spaced, directed laterad; cerotegument mostlylow tubercles; spinae adnatae very large (>60), hook laterad to Da; Va strongly developedtriangle, Vp absent; ventral length 490-570, leg IV 790-900 ............ Epidamaeus sp. 10 DEW6. Prodorsum with a tectum over rostrum; length 382-426; YT, AK (Fig. B3c.3A) .............................................................................................................. E. nasutus Behan-Pelletier & Norton, 1985- Prodorsum without tectum over rostrum (Fig. B3c.3B) ............................................................... 7165Figure B3c.3

Almanac of Alberta Oribatida 2.3 13 January 20137. Epimere I with well developed medial pit (cp); spinae adnatae small (8), more widelyseparated than Ba; setae c1 directed laterad; sensillus with small barbs; notogastral setae with1 to several barbs on outer curve; length 338-395; YT, NU, NT, AK (Fig. B3c.4A) ............................................................................................................... E. mackenziensis (Hammer, 1952)- Epimere I without well developed medial pit; spinae adnatae longer (18), somewhat lessseparated than Ba; setae c1 directed anteriad; sensillus smooth; notogastral setae smooth;length 385-453; YT, NU, NT, AK, Palearctic (Fig. B3c.4B) ............E. bakeri (Hammer, 1952)Figure B3c.48. 1-3 pairs of prodorsal tubercles present (Fig. B3c.5A) ............. B. Prodorsal tubercles present- Prodorsal tubercles absent (Fig. B3c.5B) ..................................... C. Prodorsal tubercles absent166

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B3c.5Epidamaeus longitarsalis species group [Back to generic key]Diagnostic characters: guard seta d retained on tibiae II-III; spinae adnatae large; legs very long.Also Known As:Comments:Canadian species listed on DOC (bold = AB): Epidamaeus longitarsalis (Hammer, 1952), E.tenuissimus Hammer, 1967B3d. Key to Epidamaeus longitarsalis species group in and around Alberta1. Median prodorsal tubercle Da absent (parallel ridges present); parallel ridges perpendicular tosejugal suture present; tibia IV subequal to or longer than tarsus IV ........................................ 2- Prodorsal tubercle Da present; parallel ridges absent; tarsus IV (excluding claw) 25-30% longerthan tibia IV; carries scalps; length 700; YT, NU, NT, NF, AK, Palearctic ............................................................................................................... Epidamaeus longitarsalis (Hammer, 1952)2. Notogaster with scalps; cerotegument forming woolly patches in dorso-sejugal region andnotogaster; tibia IV shorter than or subequal to tarsus IV; La present only as a low ridge;notogastral setae c1 very long (>120); bo >200; femur I with 7 setae ..................................................................................................................................................... Epidamaeus sp. 3 DEW- Notogaster without scalps; cerotegument on body and legs short, conical, cylindrical on legs;tibia IV longer than tarsus IV; small, triangular laterosejugal tubercle La present; notogastralsetae radiating, tapered, barbed, c1 (

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: Ventral length 600-710, leg IV >2x body length, femora 6-6-6-5, genua4-5-3-3, tibiae 5-5-5-4; carry scalps (reticulate); spinae adnatae well developed (80-90);filamentous cerotegument. Tarsus IV excluding apotele (410-460) subequal to or slightlylonger than tibia IV (370-440). Dorsal notogastral setae thick, long, brown, and barbed, c1(~133), others (92-115); bo (~225-230) brown, barbed, rather blunt; in (~57-80), brown,barbed, tapering.Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985). Easilyconfused with Belba in keys. Possible new species based on absence in Behan-Pelletier &Norton (1983, 1985).Similar taxa: Belba von Heyden, 1826 lack spinae adnatae and have setae d on tibia IV; E.tenuissimus Hammer, 1967 BC, E. longitarsalis (Hammer, 1952) YT, NU, NT, NF;Epidameus sp. 10 also has very long legs.ABMI Site Records: 2007: 514, 543, 543, 616, 793. 2008: 413, 976, 1041, SL18. 2009: 568,833, 1529. 2010: 1036. 2011: 482, 1071, A602-1, A608-1, A761-3.DOC (1/2008): [+other] Distribution: Epidamaeus sp. reported from AB, YT, NU, NT, BC, MB,ON, QC, NB, NS, NF; [Lindo & Visser (2004) report Epidamaeus spp. 1-3]Images: SEM (1529)Ecology: Apparently bisexual: gravid females can carry at least 8 large eggs. Gut contentsinclude fungal hyphae, often pigmented, and fragments of organic matter.Literature: Hammer (1952, 1955); Behan-Pelletier & Norton (1983, 1985); Marshall et al.(1987).Propodolateral apophysis P or tubercle bearing set 1c present [Back to Key]***Epidamaeus sp. 7 DEW (RAM 99000xxx) [Back to generic key]Also Known As:ABMI code/Common name: EPIDSP7Diagnostic characters: Ventral length 445-465. Cerotegument is floccose on the legs,prodorsum, sensillus and dorsosejugal area. Notogastral setae in two ranks and allattenuate-whiplike. Tubercles, Da, Sa-Sp, and Va-Vp, Vp not bearing a seta. Epimeral seta1c inserted on tubercle projecting between coxae I-II; spinae adnatae large (>30 long) andfinger-like.Overview: A medium-sized (~0.45 mm long) light brown damaeid with small, spine-likepropodolateral apophysis P, large spinae adnatae, and whip-like notogastral setae. Possiblenew species based on absence in Behan-Pelletier & Norton (1983, 1985).Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985).168

Almanac of Alberta Oribatida 2.3 13 January 2013Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: 1567, 1584, 72M-5. 2010: none. 2011:1126, OG-1283-1.DOC (1/2008): [+other] Distribution:Images: SEM (1584)Ecology: Specimen is female and carries 5 eggs.Literature: Behan-Pelletier & Norton (1983, 1985); Marshall et al. (1987).***Epidamaeus sp. 10 DEWAlso Known As:ABMI code/Common name: EPIDSPXDiagnostic characters: Ventral length 490-570; leg IV 790-900. Cerotegument low tubercularon prodorsum, notogaster, short filamentous in dorsosejugal area, and bottle to peg-like onlegs. Notogastral setae in two ranks and all dark brown and with strong barbs; c1 closelyinserted, directed laterad; c2 widely spaced, directed laterad; others form two ranks of erect,recurved setae. Propodolateral apophysis P short tubercle with distal seta, situated betweencoxae I-II; spinae adnatae large (>60 long), hooked laterally to large tubercle Da; Ba small,Va strongly produced, triangular, without seta.Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 1437, 1439. 2012:1483 NE.DOC (1/2008): [+other] Distribution:Images:Ecology:Literature: Behan-Pelletier & Norton (1983, 1985); Marshall et al. (1987).B. Epidamaeus without apophysis P, but with prodorsal tubercles [Back to Key]1. Notogastral setae large and leaf-like to knife-like (Fig. B.1A) .................................................. 2- Notogastral setae usually setiform, curved or straight, but without strongly blade-like margins;scalps and debris present or absent (Fig. B.1B) ........................................................................ 5169

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B.12. Posteriorly directed prodorsal tubercles Da and Ba both present (Fig. B.2A) ............................ 3- Only one pair of posteriorly directed prodorsal tubercles (Da) present (Fig. B.2B) .................... 4Figure E-B.23. VMa-VMp present; Va-Vp absent; leg IV ~1.5 x body length (670/470); solenidion on tibia IVabout half length of long dorsal seta; cerotegument subfilamentous on legs, tuberculate onmedian notogaster, and filamentous in sejugal area ........ Epidamaeus sp. 4 DEW (nr tritylos)- VMa-VMp absent; Va-Vp present; leg IV ~0.9 x body length; solenidion on tibia IV similar inlength to dorsal seta; cerotegument filamentous on prodorsum, legs, and sejugal region,loosely filamentous on notogaster; length 528-627; YT, NU, NT, AK ................................................................................................... Epidamaeus tritylos Behan-Pelletier & Norton, 1983170

Almanac of Alberta Oribatida 2.3 13 January 20134. Notogastral setae in c-, l-, and h-series leaf-like, with well-developed vanes on either side ofthe rachis; c1 subequal to spina adnatae; scalps clean, without detritus; 660 long; MB, ON,NE USA (Fig. B.3A). ............................................................................................................................. Epidamaeus puritanicus Banks, 1906 (= E. grandjeani Bulanova-Zachvatkina, 1957?)- Notogastral setae knife-like or spike-like, expanded on only one side; scalps mixed withdetritus, eggs; c1 longer than spina adnatae; Da opposed to Dp ridge; 716-795 long (630-650in AB, 900 in Siberia) AB, YT, ON, QC, AK, Palearctic (Fig. B.3B) ........................................................................................................................ Epidamaeus fortispinosus Hammer, 1967Figure B.35 (1). Notogastral setae short, +/-radially arranged without barbs, black-sheathed or spine-like(Fig. B.4A) ................................................................................................................................ 6- Notogastral setae in 2 ranks, setiform, not spine-like, with or without barbs (Fig. B.4B) ........... 8171Figure B.4

Almanac of Alberta Oribatida 2.3 13 January 20136. Notogastral setae very short, barbed at base; spinae adnatae long (64) curved distally; femalelength 570; (Russian Far East) (Fig. B.5A) ............ E. chukchi Behan-Pelletier & Norton, 1985- Notogastral setae longer, smooth; scalps often present (Fig. B.5B) ............................................ 7Figure B.57. Median notogastral setae with black sheaths, posterior marginals slender, whip-like; in whiplike;spinae adnatae relatively slender, Ba small, between bothridia; prodorsal setae smooth;ridge posterior to prodorsal tubercle Ba present; scalps loosely adherent; female length 390-434; YT, BC, AK (if setae very long, spinae adnatae large see Lanibelba) (Fig. E-B.6A) ................................................................. Epidamaeus floccosus Behan-Pelletier & Norton, 1985- Notogastral setae and spinae adnatae robust, in short, barbed, but with whip-like tip; ridgeabsent or represented by two small mounds; notogastral setae thick; scalps loosely adherent;female ventral length 343-376; (Russian Far East) (Fig. E-B.6B) ........................................................................................................... Epidamaeus gilyarovi Behan-Pelletier & Norton, 1985172

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B.68 (6). Sensillus flagelliform (tip often broken off) (Fig. B.7A) ..................................................... 11- Sensillus straight, barbed, not attenuating (Fig. B.7B) ................................................................ 9Figure B.79. Cerotegument bottle-shaped, conical, or columnar erinose; spinae adnatae relatively small(

Almanac of Alberta Oribatida 2.3 13 January 2013174Figure B.810. Cerotegument mostly tubucular to columnar (< 10 long) erinose; c1 and possibly c2 directedlaterad, barbed; other notogastral setae barbed and curve mediad; spinae adnatae small (~22);legs relatively short, bead-like; ventral length 420-520; AB............... Epidamaeus sp. 9 DEW- Cerotegument bottle-shaped to conical, never filamentous; c1 directed laterad, c2 reflexed,barbed; other notogastral setae smooth or with a few barbs and curve medio-posteriorly;spinae adnatae small (

Almanac of Alberta Oribatida 2.3 13 January 2013IV (710-800) ~1.5x body; ventral length 480-560; YT, NU, NT, AK, Palearctic .......................................................................................................... Epidamaeus arcticola (Hammer, 1952)- Spinae adnatae large; cerotegument tubercles short, pustule-like on notogaster; bo barbed, whiplike;notogastral setae all densely barbed, dark brown, c1-2 both directed laterally); legsegments attentuate; 1c inserted on laterally projecting tubercle; ventral length 490-570; YT,NU, NT, AK, Palearctic ..................................................................... Epidamaeus sp. 10 DEWC. Epidamaeus without apophysis P or prodorsal tubercles [Back to Key]1. Sensillus setiform to flagelliform; VMa absent (Fig. C.1A) ...................................................... 2- Sensillus short, with expanded, lanceolate head; Spinae adnatae moderate size; straight; VMapresent; length 640-650; AK (Fig. C.1B) ......................................... E. hastatus Hammer, 1967Figure C.12. Most notogastral setae curved posteriad, inserted in two ranks (Fig. C.2A) ............................... 3- Notogastral setae inserted +/- radially (Fig. C.2B) ...................................................................... 5175

Almanac of Alberta Oribatida 2.3 13 January 2013Figure C.23. Notogastral setae barbed (Fig. C.3A) .......................................................................................... 4- Notogastral setae smooth; length 385-420; (Russian Far East) (Fig. C.3B) .............................................................................................................. E. hammerae Behan-Pelletier & Norton, 1983176Figure C.3

Almanac of Alberta Oribatida 2.3 13 January 20134. Trochanters III and IV unusually broad and flattened, with distinct keel; legs somewhat stocky,petioles short; sensillus needle-like with short, sparse barbs; seta c2 often directed anteriorly;length 359-430; YT, NU, NT, AK................................. Epidamaeus coxalis (Hammer, 1952)- Trochanters III-IV not flattened or with keel-like margin; leg segments slender, stronglypetiolate; sensillus whip-like and coarsely barbed; notogastral setae very long, barbed,passing next seta in series, c1 curve anteriad; cerotegument of mid-prodorsum granular,granular to tubercular on legs, filamentous on prodorsum and in sejugal area; ventral length450-510 ................................................................................................ Epidamaeus sp. 5 DEW5. Notogastral setae smooth; Va-Vp absent; ventral length >550 ................................................... 6- Notogastral setae erect, long, thick and barbed; c1-2 directed anteriorly; Va-Vp present; spinaeadnatae large; red brown, 530 long ..................................................... Epidamaeus sp. 6 DEW6. Sensillus smooth; c1 directed anteriad, c2 more laterad; legs bead-like; cerotegumentfilamentous; length 560-630; AB, NT, YT, NU, AK (Fig. C.4A) ........................................................................................................ Epidamaeus koyukon Behan-Pelletier & Norton, 1985- Sensillus barbed; orientation of c-setae varies (Fig. C.4B) .......................................................... 7Figure C.47. Ventral length

Almanac of Alberta Oribatida 2.3 13 January 2013Figure C.5*Epidamaeus arcticola (Hammer, 1952) (RAM 99000141) [Back to Key]Also Known As: Belba arcticola Hammer, 1952; Epidamaeus arcticolus (Hammer, 1952); NB –arcticola (of the Arctic) is masculine, in spite of the ending; ‘arcticolus’ is incorrect.ABMI code/Common name: EPIDARCDiagnostic characters: Prodorsum with one pair of tubercles; sensillus (~275, but tip oftenbroken) flagellate; in (~50) slender; notogastral setae dark, curved (c1-2 curve laterad),barbed, +/- parallel rows except c1; spinae adnatae minute (7) to medium; cerotegumentshort, conical, bottle-shaped or cylindrical, may be longer, subfilamentous in sejugal region;notogastral setae posterior to c1 widely separated (>4 setal lengths); Va-Vp well developed;medial pit cp on coxisternum I present; leg IV (710-800) ~1.4-1.5 x body; body length 480-560Overview: Spinae adnatae are usually larger than on more northern specimens described inBehan-Pelletier & Norton (1983) and prodorsal setae tend towards being more strongly178

Almanac of Alberta Oribatida 2.3 13 January 2013barbed; the specimen from 276 has a seta on the right spina adnata; specimens from 248,276, 373, 412, and 414 have bottle-shaped cerotegument; possible species complex.Barcodes: 414 (658 x 3); 443 (669)ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985). 373 SE 57compared to type (CNC) and checked by VBP.Similar taxa: Dyobelba sp. 1 DEW is superficially very similar, but has seta d complexed withthe solenidion on tibiae II-III, low moundlike cerotegument tubercles with amicrotuberculate background, and the first two pairs of notogastral setae directed anteriorly.See also E. arcticolus, Epidamaeus sp. 1 DEW, Epidamaeus sp. 5 DEW.ABMI Site Records: 2007: 248, 276. 2008: 373, 375, 412, 414; 443, 473, SL12. 2009: 497, 568.2010: 149, 323, 353. 2011: 121.DOC (1/2008): [+other] Distribution: YT, NU, NT; [AK]Images: SEM (414)Ecology: alpine tundra, moss, bogs, riverine litter, wet meadows, mixed litters, lichensLiterature: Hammer (1952); Behan-Pelletier & Norton (1983); Marshall et al. (1987).*Epidamaeus cf canadensis (Banks, 1909)Also Known As: Oribata canadensis Banks, 1909; Damaeus michaeli sensu Wooley, 1957ABMI code/Common name: EPIDCANDiagnostic characters: ventral length 480-520 long. Prodorsum with large tubercle Da opposedto large spinae adnatae (~45); sensillus (~200) setiform, with short barbs and slightlyexpanded tip; cerotegument filamentous on body and legs; anterior notogastral setaethickened, distinctly barbed; c1-2 directed anteriorly, others directed laterad; sensillus withslightly thickened tip.Overview: Known only from collections in Edmonton, Government House Park.Barcodes:ID Check: Determination by DEW based on comparison to CNC specimens.Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: ON, [Edmonton River Valley, AB, Eastern USA]Images:Ecology:Literature: Hammer (1967); Behan-Pelletier & Norton (1983); Marshall et al. (1987).*Epidamaeus coxalis (Hammer, 1952) (RAM 99000145) [Back to Key]Also Known As: Belba coxalis Hammer, 1952179

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI code/Common name: EPIDCOXDiagnostic characters: length 345-430; prodorsal tubercles absent; bo setiform; VMa absent;spinae adnatae small; notogastral setae in two ranks, barbed; trochanters III and IVunusually broad and flattened; femur IV (1.7x genu) somewhat crooked, stalk about halflength; cerotegument of leg bases and dorsosejugal area densely woolly, bottle-shaped tofilamentous on legs; notogaster mostly bare.Overview: Most likely to be confused with Quatrobelba montana which has mostly granularcerotegument on notogaster; trochanter IV long, 1/3 rd longer than femur IV with very shortstalk; tibia II to IV with seta d+ solenidion present; trochanteral setation 1-1-3-1 (seta dpresent on III); genual setation 4-4-4-4 (seta v” present on III-IV); ventral length 420-470Barcodes: 866 (658), PRO4 (658), SL18 (401)ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985). Specimenfrom PRO3 NW compared to type and topotype slides in CNC; AB specimen is morerobust, but in good agreement with types. VBP agrees they are the same species (October2008).Similar taxa: see Quatrobelba montana.ABMI Site Records: 2007: 584, 600, 617, 662, 664, 1102, 1103, 1133, UPL4, UPL6. 2008: 690,719, 720, 721, 751, 866 (one on slide with Q. montana), 867, 899, 932, 933, 934, 974, 975,1008, 1009, 1041 (on slide with Q. montana), 1042 (on slide with Q. montana), 1043,BOG1, PRO3, PRO4, SL12, SL13, SL18, SL21. 2009: 497, 538, 559, 568, 760, 916. 2010:875, 876, 877, 909, 941, 942, 1035, 1035, 1169, 1171, 1175, 1176, 1177, 1201, 1202, 1203,1207, 1208, 1237, ALPAC-1, ALPAC-5, OG-972-1, OG-976-1, OG-1005-1, OG-1005-1,OG-1104-1, OG-1136-1, OG-1171-1, OG-1171-2, OG-1208-1. 2011: 672, 962, 963, 964,970, 990, 995, 996, 1029, 1031, 1072, 1073, 1105, 1106, 1136, 1137, 1138, 1231, 1233,1262, 1437, A477, A602-1, A637-2, A692-1, A692-2, A7, A757-1, A757-2, A761-1, OG-1212-1.DOC (1/2008): [+other] Distribution: YT, NU, NT; [AK]Images: SEM (1043)Ecology: Gravid females carry at least 6 large eggs. Gut contents include pigmented andunpigmented fungal hyphae. Originally described from moist birch litter.Literature: Hammer (1952); Behan-Pelletier & Norton (1983); Marshall et al. (1987).*Epidamaeus floccosus Behan-Pelletier & Norton, 1985 (RAM 99000143) [Back to Key]Also Known As:ABMI code/Common name: EPIDFLODiagnostic characters: Female ventral length 410-434; notogastral setae and spinae adnataerelatively slender, median prodorsal setae rigid, black, posterior marginals slender; ridgeposterior to prodorsal tubercle Ba present; scalps loosely adherent; cerotegumentfilamentous on body, legs, bo; in whip-like, smooth or barbed basally.Overview: The flocculent cerotegument on the sensillus is a useful character in alcohol.180

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes: 32 (669 x 2); 473 (658 x 2), SL12 (658)ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985). 1043 NW,1618 SW 30 checked by VBP October 2008.Similar taxa: see Lanibelba sp. 1ABMI Site Records: 2007: 514, 545, 576, 792. 2008: 473, 976, 1008, 1043, 1116, 1434, 1618,BOG4, PRO4, SL12, SL13, SL18, UPL1. 2009: 3, 14, 32, 33, 34, 530, 537, 559, 1491.2010: 875, OG-1069-1. 2011: 451, 481, 1031, 1071, 1072, 1105, 1157, 1158, 1186, 1216,OG-1190-1, OG-1282-1, OG-1334-1.DOC (1/2008): [+other] Distribution: YT, BC; [AK]Images: SEM (SL12)Ecology: spruce litterLiterature: Behan-Pelletier & Norton (1985); Marshall et al. (1987).*Epidamaeus cf fortispinosus Hammer, 1967 (RAM 99000144) [Back to Key]Also Known As:ABMI code/Common name: EPIDFORDiagnostic characters: Ventral length 716-795 (630-650 in AB, 900 in Siberia), red-brown.Usually with scalps and debris (including eggs). Cerotegument flocculent in sejugal region,Velcro-like on legs, leg setae free of cerotegument distally. Sensillus (~240) and in (~93)thick, barbed, tapering only slightly. Notogastral setae knife-like or spike-like, with welldeveloped vane on only one side, c1 (80-95), c2 (96-110), and +/- la (~73) directedanteriorly; c1 subequal to or slightly longer than spina adnatae (~75-88); one pair ofprodorsal tubercles (Da) opposed to Dp. Genu IV (AB): 2 setae on genu IV equal in sizeand longer than the segment, one shorter, ~2/3rds length genu IV.Overview: Epidamaeus fortispinosus appears to be part of a complex of species that extend fromeastern North America to the Russian Far East and whose adults are characterized by theloss of tubercle Ba, notogastral setae that are radially arranged and have vane-likeexpansions on one or both sides of the rachis, and a stack of scalps with or without adherentdebris. Only a few specimens have been found in northern Alberta to date and these varysomewhat from typical fortispinosus and may represent a new species in this group.Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985). 545 NE A1checked by VBP October 2008 – smaller than type series, but otherwise good match.Similar taxa: As redescribed by Behan-Pelletier & Norton (1983), Epidamaeus fortispinosusHammer, 1967, from Alaska (Canada and Siberia) is larger (716-795 long) than the Albertaspecimens and has somewhat shorter spinae adnatae. Epidamaeus puritanicus Banks, 1906from eastern North America is similar in size to Alberta E. cf fortispinosus, but has fullyleaf-like setae and carries clean scalps without adherent debris. Epidamaeus grandjeaniBulanova-Zachvatkina, 1957 from the Russian Far East is very similar to E. puritanicus andhas 3 subequal setae on genu IV that are longer than the segment. In Siberia, E. cf181

Almanac of Alberta Oribatida 2.3 13 January 2013fortispinosus is much larger; genu IV has 2 setae subequal in length and shorter than thesegment and a third seta half the length of the segment; and setae c1-2 and la are acicularand sparsely barbed.ABMI Site Records: 2007: 545, 599, 823. 2008: none. 2009: none. 2010: 208. 2011: none.DOC (1/2008): [+other] Distribution: YT, ON, QC; [AK, Russian Far East]Images:Ecology: Bisexual: gravid females carry at least 6 eggs and may have eggs attached to scalps.Specimens have been collected in spruce litter, mosses, birch litter, grasses, and heath.Literature: Hammer (1967); Behan-Pelletier & Norton (1983); Marshall et al. (1987).*Epidamaeus koyukon Behan-Pelletier & Norton, 1985 (RAM 99000146) [Back to Key]Also Known As:ABMI code/Common name: EPIDKOYDiagnostic characters: ventral length 570-622; leg IV ~670; femur IV~trochanter IV;cerotegument filamentous, cuticle weakly microtuberculate; no prodorsal tubercles, E3, Vabsent; notogastral setae smooth, thickened, bo flagelliform; spinae adnatae large (32-42),subtriangular; h-series smooth, radiating, h1 longest; often carries scalps; femora 7-6-4-4-;tarsi 20-17-16-13.Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985). 375 NWB4 checked by VBP October 2008 – larger than usual, but otherwise a good fit.Similar taxa:ABMI Site Records: 2007: none. 2008: 375. 2009: 1, 3, 33. 2010: none. 2011: 121, 122, 362.DOC (1/2008): [+other] Distribution: YT, NU, NT; [AK]Images:Ecology: S-facing bluff, grass clumps, aspen litter, litter with lichensLiterature: Hammer (1967); Behan-Pelletier & Norton (1983); Marshall et al. (1987).***Epidamaeus sp. 1 DEW (RAM 99000014) [Back to Key]Also Known As:ABMI code/Common name: EPIDSP1Diagnostic characters: ventral length 330-430, leg IV (440-500) 1.1-1.2 x body. Prodorsum witha pair of posterior tubercles; bo (190-200) smoothly flagelliform, without cerotegument; in(60) simple; le (~70), ro (~60) simple, curved forward; notogastral setae (mostly 65-70) intwo ranks, curved, smooth; spinae adnatae well developed (15-16, bifurcate on one 1009);182

Almanac of Alberta Oribatida 2.3 13 January 2013Va, Vp present; cerotegument filamentous in sejugal region and on leg bases;subfilamentous to filamentous on legs, prodorsum, seta in; femur IV stalk about half length(47-56%); tibia IV stalk slightly less (44-46%).Overview: Smaller than arcticola and with better developed spinae adnatae. Possible newspecies based on absence in Behan-Pelletier & Norton (1983, 1985).Barcodes: 1009 (658 x 2); Edmonton (642 – as sp. x)ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985).Similar taxa: E. arcticolus, E. nr. arcticolusABMI Site Records: 2007: 600, 632 (1 E. coxalis on slide). 2008: 1009, 1116, 1379. 2009: 538,1491 (1 on slide with Dyobelba sp. 1 DEW), 1493, 1510, 1529, 1550, 1627, 1645. 2010:1177. 2011: 1638.DOC (1/2008): [+other] Distribution: Epidamaeus sp. reported from AB, YT, NU, NT, BC, MB,ON, QC, NB, NS, NF; [Lindo & Visser (2004) report Epidamaeus spp. 1-3]Images: SEM (1491)Ecology: gut contents mostly fungal hyphaeLiterature: Marshall et al. (1987); Behan-Pelletier & Norton (1983)***Epidamaeus sp. 2 DEW (RAM 99000015) [Back to Key]Also Known As:ABMI code/Common name: EPIDSP2 / Yeti MiteDiagnostic characters: ventral length 680-770, leg IV 700-800, red-brown; carries dense massof junk; cerotegument woolly; bo (250) setiform, barbed, in (150-155), thick, dark, sparselybarbed; notogastral setae (~55) dark, smooth, gradually curved; spinae adnatae (40-45)Overview:Barcodes: 1116 (658), BOG2 (658), UPL1 (658)ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985). MoosePasture Research Site 8 km W Chipman, AB specimen confirmed Epidamaeus n. sp. RANApril 08.Similar taxa:ABMI Site Records: 2007: 359, 512, 618, 664, 857, UPL4. 2008: 720, 866, 976, 1085, 1116,1404, BOG1, BOG2, BOG4, SL13, UPL1, UPL2. 2009: 538, 569, 916, 1510. 2010: 1208,ALPAC-1, ALPAC-2, ALPAC-3, ALPAC-4, ALPAC-10, ALPAC-11, ALPAC-12,ALPAC-13, ALPAC-14, OG-1208-1. 2011: 64, 65, 121, 481, 482, 984, 990, 1125, 1126,1157, 1332, 1333, A477, A602-1, A637-1, A637-2, A692-1, A692-2, A7, A757-1, A761-1,OG-1082-1, OG-1248-1, OG-ABMI-1275-1.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444); Edmonton (Parkallen, River Valley)]; Epidamaeus sp. reported183

Almanac of Alberta Oribatida 2.3 13 January 2013from AB, YT, NU, NT, BC, MB, ON, QC, NB, NS, NF; [Lindo & Visser (2004) reportEpidamaeus spp. 1-3]Images: MP (SEM)Ecology: Gravid females have up to 17 eggs internally, and often carries eggs attached tocerotegument of notogaster.Literature: Behan-Pelletier & Norton (1983, 1985); Marshall et al. (1987).Epidamaeus sp. 3 DEW – see Epidamaeus longitarsalis species group (above).***Epidamaeus sp. 4 DEW (RAM 99000083)Also Known As:ABMI code/Common name: EPIDNS4Diagnostic characters: Ventral length 440-500. Prodorsum with 3 pairs of tubercles, Da-Bafused and holding spina adnatae. Spinae adnatae large (~35); dorsal notogastral setaeexpanded on both sides of rachis, leaf-like, c1-2 (60, 65), la, lm, lp, h3 (40-55); h1-2 moreknife-like; p1-3 long (~8)), barbed, acuminate; debris including eggs and scalps carried;VMa-VMp present; Va-Vp apparently absent; leg IV ~1.5 x body length (670/470);solenidion on tibia IV about half length of long dorsal seta; cerotegument subfilamentouson legs, tuberculate on median notogaster, and filamentous in sejugal area.Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985).Similar taxa: Epidamaeus tritylos lacks VMa-VMp anterior to the genital opening. Possible newspecies based on absence in Behan-Pelletier & Norton (1983, 1985).ABMI Site Records: 2007: none. 2008: 412. 2009: none. 2010: 352. 2011: none. 2012: 82NW.DOC (1/2008): [+other] Distribution:Images:Ecology:Literature: Behan-Pelletier & Norton (1983, 1985); Marshall et al. (1987).***Epidamaeus sp. 5 DEW (RAM 99000017) [Back to Key]Also Known As:ABMI code/Common name: EPIDSP5Diagnostic characters: length 450-500; leg IV 1.25x body; prodorsal tubercles absent; bo (~200)strongly barbed with short flagellate tip; in (45); VMa absent; spinae adnatae welldeveloped; notogastral setae elongate, barbed, in two ranks, c1-2 curve posteriad;184

Almanac of Alberta Oribatida 2.3 13 January 2013trochanters III and IV normal; cerotegument of mid-prodorsum granular, granular totubercular on legs, filamentous in sejugal area.Overview:Barcodes: 975 (658 x 2); 1008 (658); Edmonton (669 x 2)ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985).Similar taxa: Possible new species based on absence in Behan-Pelletier & Norton (1983, 1985).ABMI Site Records: 2007: 617, 1133. 2008: 867, 975, 1008, 1116, 1402, PRO4. 2009: 568,1529. 2010: 875, 1037, 1169, OG-1005-1, OG-1071-1 OG-1136-1 OG-1171-1. 2011: 964,1073, 1104, 1231, 1262, A477.DOC (1/2008): [+other] Distribution:Images:Ecology: Gravid females carry up to 6 eggs.Literature: Behan-Pelletier & Norton (1983, 1985); Marshall et al. (1987).***Epidamaeus sp. 6 DEW (RAM 99000084) [Back to Key]Also Known As:ABMI code/Common name: EPIDSP6Diagnostic characters: ventral length 520, red-brown, cerotegument filamentous. Prodorsumprobably without tubercle (unclear on only specimen); bo long, thick, spiculate (possiblywhip-like tip broken off); in short, dark, thick and spiculate. Notogastral setae thick,spiculate, more or less radially arranged.Overview: A red-brown, relatively long-legged species with large spinae adnatae that curvelaterad. Possible new species based on absence in Behan-Pelletier & Norton (1983, 1985).Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985).Similar taxa: Epidamaeus sp. 2 DEW is similar but much larger and typically encrusted withdetritus.ABMI Site Records: 2007: none. 2008: 1085. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution:Images:Ecology: Specimen is female and carries 5 eggs.Literature: Behan-Pelletier & Norton (1983, 1985); Marshall et al. (1987).***Epidamaeus sp. 8 DEW (RAM xxxxxxxxxx) [Back to Key]Also Known As:185

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI code/Common name: EPIDSP8Diagnostic characters: ventral length 400-500; cerotegument filamentous on legs and body.Prodorsum with tubercles Da; all prodorsal setae smooth, whiplike: in very long (150 ormore), bo (>190) similar. Spinae adnatae (12-13) stout, spine-like; notogastral setae in 2-ranks, c1-2 both directed anteriorly, all smooth, long. Venter with tubercles Va, Vp.Overview: A red-brown to light brown, relatively long-legged species similar to E. arcticola, E.sp. 1 DEW, and E. sp. 7 DEW. Possible new species based on absence in Behan-Pelletier &Norton (1983, 1985).Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985).Similar taxa: see Overview.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: 384. 2011: 121, 962, 964, 995,996, 1002, 1003, 1030, 1031.DOC (1/2008): [+other] Distribution:Images:Ecology: Gut contents contain brown fungal hyphae.Literature: Behan-Pelletier & Norton (1983, 1985); Marshall et al. (1987).***Epidamaeus sp. 9 DEW (RAM xxxxxxxxxx) [Back to Key]Also Known As:ABMI code/Common name: EPIDSP9Diagnostic characters: ventral length 420; cerotegument mostly tubucular to columnar (< 10long) erinose. Prodorsum with small tubercle posteriad bothridium; sensillus (~120) setalike,barbed, tapering; in short (

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: Gut contents of the single specimen contain brown and light fungal hyphae.Literature: Behan-Pelletier & Norton (1983, 1985); Marshall et al. (1987).*Epidamaeus tritylos Behan-Pelletier & Norton, 1983 (RAM 99000142) [Back to Key]Also Known As:ABMI code/Common name: EPIDTRIDiagnostic characters: length (520) 528-627; 3 pairs of prodorsal tubercles present (Da, Ba,Bp); spinae adnatae (64) directed ventrad, may bear seta; carries scalps; solenidion on tibiaIV similar in length to dorsal seta; tibia IV (138), trochanter IV (145), femur IV (170), genuIV (95)Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Norton (1983, 1985). 390 SWchecked by VBP October 2008.Similar taxa:ABMI Site Records: 2007: 390. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: YT, NU, NT; [AK, Russian Far East]Images:Ecology: willow litter, moss, alder litterLiterature: Behan-Pelletier & Norton (1983); Marshall et al. (1987).Lanibelba Norton, 1980 (RAM 99000154)Diagnostic characters: seta d present only on tibia (II) III-IV; spinae adnatae large;cerotegument highly filamentousAlso Known As: Belbodamaeus Bulanova-Zachvatkina, 1960, Belba (Lanibelba) Norton, 1980Type species: Lanibelba pini (Norton, 1980)World species: 1Comments:Canadian species listed on DOC (bold = AB): Lanibelba pini Norton, 1980; Lanibelba sp.*Lanibelba sp. 1 DEW (RAM 99000031) [Back to generic key]Also Known As: Belbodamaeus (Lanibelba) pini (Norton, 1980)ABMI code/Common name: LANISP1187

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: ventral length 405-470. Body and legs covered in woolly cerotegument,reticulate scalps or fragments usually present. Prodorsum covered in long, filamentouscerotegument; bo (175-200) smooth, whip-like, covered in cerotegument; in (~200) whiplike;ex (~45-70); one pair of large, triangular prodorsal tubercles opposed to very largespinae adnatae (35-40). Notogaster covered in long, filamentous cerotegument and oftenwith scalps; most notogastral setae long (75-110), dark, +/- sword-like, radially arranged.Sa-Sp, Va present.Overview: Lanibelba sp. 1 is a medium sized, long-legged mite that is covered with wool-likefilaments of cerotegument.Barcodes:ID Check: Determination by DEW based on Norton (1980). Specimen from 72M-1 has setasolenidioncomplex on tibia II.Similar taxa: Lanibelba pini (Norton, 1980) is known from ON, NB seems to have shorterinterlamellar setae, but otherwise appears similar. Epidamaeus floccosus looks similar buthas shorter dorsal setae and smaller spinae adnatae.ABMI Site Records: 2007: 1254. 2008: 1223, 1435. 2009: 72L-1, 72L-2, 72L-5, 72M-1. 2010:none. 2011: 1437, 1480, OG-1160-1, OG-1282-1, OG-1283-1.DOC (1/2008): [+other] Distribution: Lanibelba sp. reported from YTImages:Ecology: Gravid females can carry at least 4 large eggs. Gut contents contain fungal hyphae andspores.Literature: Norton (1980); Marshall et al. (1987).Quatrobelba Norton, 1980 (RAM 99000155) [Back to generic key]Diagnostic characters: tibia II to IV with seta d+ solenidion present; spinae adnatae present;organic debris absent; trochanteral setation 1-1-3-1 (seta d present on III); genual setation 4-4-4-4 (seta v” present on III-IV); ventral length 430.Also Known As: Subbelba Bulanova-Zachvatkina, 1967Type species: Quatrobelba montana Norton, 1980World species: monotypic.Comments:Canadian species listed on DOC (bold = AB): Quatrobelba montana Norton, 1980Quatrobelba montana Norton, 1980 (UBIO 95501322)Also Known As: Subbelba (Quatrobelba) neonominata Subías, 2004ABMI code/Common name: QUATMON188

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: Sensillus setiform, barbed; notogastral setae smooth to lightly barbed, c1directed anteriorly, others (except p1) directed posteriorly in 2 ranks; prodorsal tuberclesabsent; spinae adnatae present; cerotegument filamentous in dorsosejugal region, sparse,mostly granular on notogaster, granular to filamentous on legs; trochanter IV long, 1/3 rdlonger than femur IV with very short stalk; tibia II to IV with seta d+ solenidion present;organic debris absent; trochanteral setation 1-1-3-1 (seta d present on III); genual setation 4-4-4-4 (seta v” present on III-IV); ventral length 420-470.Overview:Barcodes: 1009 (658 x 2)ID Check: Determination by DEW based on Norton (1980). Moose Pasture Research Site 8 kmW Chipman, AB (53.656667, -112.759444) specimen confirmed by RAN April 08.Similar taxa: Easily confused with the smaller Epidamaeus species.ABMI Site Records: 2007: 359, 512, 617, 618, 664, 793, 857, 1135; 2008: 344, 690, 866 (+1 E.coxalis), 868, 1009, 1041, 1116, 1353, 1354, 1355, 1378, 1402, 1403, 1404. 2009: 3, 914,1529. 2010: 875, 890, 923, 1176, 1177, 1208, 1239, ALPAC-1, ALPAC-2, ALPAC-5,ALPAC-9, ALPAC-11, ALPAC-14, OG-976-1, OG-1325-1. 2011: 963, 1072, OG-1212-1,OG-1275-1.DOC (1/2008): [+other] Distribution: AB; [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444); CA, WA, CO, WY, ID, MT, SD]Images: SEMs (MP)Ecology: Gravid females can carry at least three large eggs. Gut contents include pigmented andhyaline fungal hyphae and spores.Literature: Norton (1980); Marshall et al. (1987).Back to Table of ContentsCepheoidea Berlese, 1896 (ITIS 733359)(Back to Key to Brachypylina)Cepheidae Berlese, 1896 (ITIS 733434)Comments: Cepheidae is preoccupied and a replacement name is needed. With the exception ofspecies of Conoppia (known from BC) that have shiny integument, cepheid mites are dark,large, heavily sclerotized, and covered in a thick cerotegument; the mites are brittle anddifficult to dissect without fragmenting; therefore, these are very difficult specimens tostudy with a transmitted light microscope. Additionally, I have been unable to find anyrecent revision of the North American species. Two genera (Cepheus, Eupterotegaeus) andthree species in the family previously have been reported from Alberta.189

Almanac of Alberta Oribatida 2.3 13 January 2013B4. Key to Genera of Cepheidae in North America1. Sensillus extending far beyond bothridium; never globular, but may have distinct club;lamellae distinctly converging, translamella present or absent; 1-3 claws (Fig. B4.1A) .......... 2- Sensillus globular, often black in colour, with very short stalk, situated within or hardlyemerging from bothridium; lamellae subparallel, without translamella; tridactylous (Fig.B4.1B) ....................................................................................... Ommatocepheus Berlese, 1913(5 described species, one from North America: Ommatocepheus clavatus Woolley & Higgins,1964: Holarctic, QC, NC, OR; also Ommatocepheus sp.: MI)Figure B4.12. Lamellar cusps rounded, truncate, or laterally oblique; notogaster with short humeral process,but without a pair of teeth on its anterior margin (Fig. B4.2A) ................................................. 3- Lamellar cusps medially oblique, converging, and acute; notogaster with a pair of teeth on itsanterior margin posteriad the bothridia; OR, BC (Fig. B4.2B) ................................................................................................................ Eupterotegaeus rhamphosus Higgins & Woolley, 1963190Figure B4.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Tarsi monodactyl (Fig. B4.3A) .................................................................................................... 4- Tarsi tridactyl (Fig. B4.3B) .......................................................................................................... 6Figure B4.34. Notogaster coarsely foveolate, tuberculate, or covered in coarse ridges and bearing 10 pairs ofsetae, include c2 in the humeral region; seta in relatively long, at least as long as the sensillus,and originating somewhat well anteriad the bothridia, often about midway betweendorsosejugal scissure and lamellar cusps (Fig. B4.4A) ............................................................. 5- Notogaster and cerotegument (except humeral process) smooth to punctate, without foveae ortubercles, and bearing 5-6 pairs of setae, c2 apparently absent; interlamellar seta (in) muchshorter than sensillus, inserted at level of bothridia (Fig. B4.4B) ........ Sadocepheus Aoki 1965(Sadocepheus subniger (Ewing, 1917) IA)Figure B4.4191

Almanac of Alberta Oribatida 2.3 13 January 20135. Notogastral setae long: lp, h3, h2 longest (~130-200), curved, barbed, tapering and extendingbeyond body margin; c2, la, lm similar but somewhat about half as long and thicker; h1, p1shorter (

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B4.67. Integument smooth, most notogastral setae absent, alveoli present; lamellae narrow;translamella linear, weakly developed (Fig. B4.7A) ............................. Conoppia Berlese 1908(Conoppia microptera (Berlese, 1885) species complex: WV, NU, NT, BC)- Integument sculptured, notogastral setae present; lamellae and translamella ribbon-shaped (Fig.B4.7B)...................................................................... Sphodrocepheus Woolley & Higgins 1963(Sphodrocepheus anthelionus Woolley & Higgins, 1968 BC; OR, WA; S. tridactylous W&H,1963 CA UT WA OR)193Figure B4.7

Almanac of Alberta Oribatida 2.3 13 January 2013Cepheus CL Koch, 1835 (ITIS 733771)Diagnostic characters: Monodactyl; lamellae broad, covering tutorium-like ridge and most or allof the rostrum, typically with foveolate ornamentation, lateral margin simple or with a largesubdistal tooth, cusps broad to narrow distally, rounded, conical, or truncate, with orwithout small lateral dens; setae in usually originating about midway between dorsosejugalscissure and lamellar cusps, short and bristle-like or longer, sinuate and reaching or passingtips of lamellar cusps; bo typically barbed and somewhat to strongly inflated distally;notogastral sculpturing typically of coarse oval to irregular depressions surrounded bycoarse, raised and interconnected ridges, but sometimes tuberculate or with separate ridges;notogaster with 9-10 pairs of setae, c2 usually curved ventrally posteriad bothridium, 1-series and h-series usually short and acicular, but may be longer and rod-shape or expandeddistally; p-series usually curved ventrad.Also Known As: Tegeocranus Nicolet, 1855Etymology – Cepheus – Mythical ruler of Ethiopia, father of Andromeda, husband of CassiopeiaType species: Cepheus latus CL Koch, 1835194

Almanac of Alberta Oribatida 2.3 13 January 2013World species: ~28Comments: The name Cepheidae is preoccupied and a replacement is needed. With the exceptionof species of Conoppia (known from BC) that have shiny integument, cepheid mites aredark, large, heavily sclerotized, and covered in a thick cerotegument; therefore, they arevery difficult specimens to study with a transmitted light microscope.Canadian species listed on DOC (bold = AB): Cepheus corae Jacot, 1928; C. latus C.L. Koch,1835; Cepheus sp.B5. Key to Some Species of Cepheus in the Holarctic1. Notogastral setae short, tapering, acuminate, simple or barbed (Fig. B5.1A) ............................. 2- Lateral (la, lm, lp) and h-series (h1-3) longer, rod-like or widening towards tip (Fig. B5.1B) ... 9Figure B5.12. Lateral margin of lamella simple, without a subdistal tooth (small dens laterad insertion of lemay be present) (Fig. B5.2A) .................................................................................................... 3- Lateral margin of lamella with a strong subdistal tooth (Fig. B5.2B) ....................................... 10195Figure B5.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Lamellar cusps short and truncate to laterally oblique or narrowing distally around insertion oflamellar seta; tip of rostrum usually visible dorsally; other characters variable (Fig. B5.3A) .. 4- Lamellar cusps well developed, closely aligned medially and broad distally, covering rostrum;notogaster with pattern of cells and ridges; sensillus with barbed, fusiform club; broadlydistributed across the Palearctic and possibly Holarctic; body 520-740 long (Fig. B5.3B)................................................................................................ Cepheus cepheiformis (Nicolet, 1855)Figure B5.34. Notogastral setae including la, lm, lp and h1-3 simple or with a few barbs; interlamellar setaeinserted well anterior to level of bothridia and approaching or passing the tips of the lamellae;interlamellar area smooth to foveolate in anterior portion; lamellae, sensillus, and notogastralsculpturing various (Fig. B5.4A) ............................................................................................... 5- All notogastral setae including la, lm, lp and h1-3 densely barbed; interlamellar setae (~75-80)inserted just anterior to level of bothridia and not approaching tips of the lamellae;interlamellar area evenly foveolate; lamellae truncate distally and with small dens laterad le;sensillus (~100) narrow, slightly expanded and densely barbed distally; notogastralsculpturing of smooth oval to angular foveae (Fig. B5.4B) .. Cepheus mirabiloides Jacot, 1938196

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B5.45. Notogaster with pattern of connected ridges that enclose cells; interlamellar seta and sensillusvarious (Fig. B5.5A) .................................................................................................................. 6- Notogastral sculpturing consists of dark, irregular ridges that are separate from each other;interlamellar seta slender, bristle-like, not reaching tip of sensillus; sensillus clavate, clubbarbed; body 670-900 long (Fig. B5.5B) ....................................Cepheus latus CL Koch, 1835197Figure B5.5

Almanac of Alberta Oribatida 2.3 13 January 20136. Sensillus (bo) terminating in narrow, weakly inflated head with distal crown of barbs (Fig.B5.6A) ....................................................................................................................................... 7- Sensillus with distinct, spoon-shaped to rounded and barbed club (Fig. B5.6B) ........................ 8Figure B5.6Sensillus weakly inflated distally and with crown of barbs7. Notogastral sculpturing of irregular, amoeboid cells separated by thick ridges; interlamellarsetae strongly barbed, extending past tips of lamellae; ventral length 631-782; Russian FarEast (Fig. B5.7A) ............................................................... Cepheus brachiatus Sitnikova, 1975- Notogastral sculpturing of irregular, oval to rosettiform cells separated by thick ridges;interlamellar setae barbed, sinuate, just reaching the tips of lamellae; ventral length 600-740(Fig. B5.7B) ............................................................................................... Cepheus sp. 1 DEW198Figure B5.7Sensillus with distinct, distal club8. Lamellar cusps obliquely truncate; notogaster with large foveae (40-100) separated by thickridge (Fig. B5.8A) ..................................................................................... Cepheus sp. 2 DEW- Lamellar cusps long, covering most of rostrum; notogaster with mostly small foveae (10-20) inoften grape-like clusters (Fig. B5.8B) ..................................................... Cepheus sp. 2B DEW

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B5.8Notogastral setae relatively long, rod-like or broadened distally9. Notogaster with tuberculate cerotegument; la, lm, lp and h1-3 thick, broadening towards tip (c2minute, p1-3 curved, tapering); sensillus barely widened distally; interlamellar setae short,reaching tips of rostrum; 0.745, Central Europe (Fig. B5.9A) ............................................................................................................................................. Cepheus tuberculosus Strenzke, 1951- Notogaster with interconnected ridges forming irregular to amoeboid cells; la, lm, lp and h1-3rod-like (c2 well developed, p1-3 curved, tapering); sensillus short, with distinct club;interlamellar setae short, not reaching tips of lamellae; 750-840, Northern Caucasus (Fig.B5.9B)............................................................................... Cepheus caucasicus Sitnikova, 1975199Figure B5.9

Almanac of Alberta Oribatida 2.3 13 January 2013Lamellar margin with a large, subdistal tooth10. Genital plates with 6 pairs of setae; 750-840; Europe (Fig. B5.10A) ....................................................................................................................................... Cepheus dentatus (Michael, 1888)- Genital plates with 10 pairs of setae; 800-905; Europe (Fig. B5.10B) ..........................................................................................................................................Cepheus grandis Sitnikova, 1975Cepheus corae Jacot, 1928Figure B5.10Also Known As:ABMI code/Common name: CEPHCOR; Common name: Cora’s King MiteDiagnostic characters: Lamellae broad, reticulate, tips notched around le, separated by a verynarrow cleft, rostrum barely visible dorsally; interlamellar setae smooth, thick and short, notreaching tips of lamellar cusps, inserted about half-way up the prodorsum; sensillus (pedicle~15 ‘below curve’, ~40, ‘beyond curve’) somewhat recurved, with spiculate, club-shapedhead; notogastral sculpturing of coarse, reticula (angular centrally, more roundedperipherally), extending onto distinct humeral projection; 6 pairs genital setae; 2-4 eggs; to680 long (notogaster 500 x 470) (Jacot, 1928).Cusps of lamellae truncate, with small lateral teeth; translamella short; sensillus elongate,with barbed, narrowly clavate head; interlamellar setae coarse, reaching tips of lamellae;notogastral sculpturing of large foveae separated by strong ridges (Hammer 1955).Overview: This species was reported from the EMEND (56.46, -118.22) site by Lindo & Visser(2004) and from the forest floor under fir and hemlock, Sitka spruce and red cedar onVancouver Island (Lindo 2004-2007; Winchester & Lindo 2006, Winchester et al. 1996).Cepheus sp. nr. corae Jacot, 1928 was reported by Powell & Skaley (1975) in their study ofarthropods found under rust-infected lodgepole pine.Barcodes:ID Check:Similar taxa: Sp. 2 DEW may be C. corae.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.200

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: AB [EMEND (56.46, -118.22) (56°46118°22, YT, NU, NT, QC, NB, NF; [AK; Lindo & Visser (2004)]Images: SEM (cf NY)Ecology: Associated with evergreens in the Canadian Life Zone (Jacot, 1928)Literature: Jacot (1928); Hammer (1955); Marshall et al. (1987); Lindo & Visser (2004).[Cepheus latus CL Koch, 1835]Also Known As: Carabodes latus (C.L. Koch, 1835); Tegeocranus latus (C.L. Koch, 1835); [notC. latus Nicolet, 1855]ABMI code/Common name: CEPHLAT; Common name: Broad King MiteDiagnostic characters: Lamellar cusps separate, rounded anteriorly, without anterior tooth-likeprojection; interlamellar seta thin, bristle-like. Sensillus clavate, rounded, and beset withspines. Notogastral sculpturing consists of dark, irregular ridges that are separate from eachother (as opposed to connected in a net-like manner). 6 pairs genital setae, body 670-900long (Weigmann 2006).Overview: This species was reported from the EMEND (56.46, -118.22) site by Lindo & Visser(2004).Barcodes:ID Check: The type specimen is unknown and some North American literature records aredoubtful because of confusion about species identity (Marshall et al. 1987).Similar taxa: According to Weigmann (2006), the notogastral sculpturing on C. latus consists ofdark irregular ridges that are separate from each other (“Notogasterskulptur aus dunken,unregelmäßigen Leisten bestehend, die voneinander isoliert sind” p. 209). Gilyarov &Krivolutsky (1975), however, include C. latus in the group having “small, uniform, roundareolae, collected together in uneven groups, separated by narrow ridge-like thickenings”(CNC translation). All of the Alberta Cepheus that I have observed have a pattern ofirregular to more or less oval cells separated by interconnected ridges.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB [EMEND (56.46, -118.22) (56°46118°22, NU, NT; [Holarctic; Eurasia, Japan, USA, Canada]Images:Ecology: Hingley (1971) reported C. latus from the arboreal fruiting bodies of the fungusDaldinia concentrica in the United Kingdom and also observed hyphae in the gut contentsof adult mites and spores, hyphae, and plant material in the guts of nymphs. This mite alsohas been reported to be a macrophytophage (see Mitchell 1978).Literature: Hingley (1971); Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Lindo &Visser (2004); Weigmann (2006).201

Almanac of Alberta Oribatida 2.3 13 January 2013Cepheus sp. 1 DEW (RAM 99000007)Also Known As:ABMI code/Common name: CEPHSP1; Common name: Common King miteDiagnostic characters: Length 580-740, red-brown; 6 pairs genital setae; 2 (3) pairs anal setae;lamellar tips truncate (+/- small lateral dens), not meeting distally, rostrum visible dorsally;interlamellar region usually foveolate anterior to in (rarely without foveae, e.g. in 631 SW,823 SE); bo (75-105), reflexed dorsolaterally, tip slightly swollen (spoon) and spinose, clubabout 1/3 rd length; in thick, sinuous, reaching tip of lamellae; le (85-90) at tip of lamella;notogastral cerotegument of irregularly coalesced clusters of foveae separated by thickridges; humeral process rounded, margin with series of widely spaced teeth that decrease insize posteriorly; notogastral setae short (25-35), needle-like; c2 (30-35) curved, presentbehind bothridium; ventral plate rugose; tibia I with 4 setae and 2 piliform solenidia.Overview:202

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes: 412 (658), 413 (658, 658), 444 (658, 658), 975 (657, 658, 658)ID Check: Determination by DEW based on Jacot (1928, 1938); Hammer (1952), Gilyarov &Krivolutsky (1975), Sitnikova (1975); Weigmann (2006). Cepheus sp. nr. corae Jacot, 1928was reported by Powell & Skaley (1975) in their study of arthropods found under rustinfectedlodgepole pine. Specimens from 621 SW and 823 SE were formerly separated as“Cepheus sp. 3”, but the only consistent difference is a lack of foveae on the prodorsumanterior to setae in and one specimen from 823 SE appears to have weak foveae.Similar taxa: Cepheus brachiatus Sitnikova, 1975ABMI Site Records: 2007: 276, 388, 358, 389, 514, 574, 599, 600, 601, 617, 632, 791, 792,1068, 1070, 1101, 1102, 1103, 1134, 1135, BOG7, UPL6, UPL9. 2008: 374, 375, 412, 413,414, 444, 688, 690, 720, 721, 752, 975, 976, 1007, 1116, 1402, 1404, BOG1, BOG2,BOG3, FM07, SL13, SL18, SL21. 2009: 14, 15, 32, 34, 497, 498, 506, 508, 528, 529, 530,537, 538, 559, 561, 568, 569, 570, 728, 760, 882, 883, 1491. 2010: 151, 325, 352, 353, 354,383, 875, 909, 1036, 1170, 1171, 1201, 1237, ALPAC4, ALPAC-16. 2011: 63, 64, 65, 91,93, 121, 122, 272, 483, 483, 604, 640, 672, 964, 1002, 1071, 1072, 1105, 1138, 1218,A635-1, A702.OS, A761-4.DOC (1/2008): [+other] Distribution: Cepheus sp. reported from AB, BC, MB, QC, NB, NSImages: SEM (412, 574, 976), LM (1102, 1134)Ecology:Literature: Gilyarov & Krivolutsky (1975); Sitnikova (1975); Marshall et al. (1987); Weigmann(2006).Cepheus sp. 2 DEW (RAM 99000008)Also Known As:ABMI code/Common name: CEPHSP2Diagnostic characters: ventral length 630-730; bo short (50-70), with strongly swollen (15-20),barbed (spoon) club, about ½ length; in (90-110) relatively slender, curved, lightly barbed,falling short of tips of lamellae; interlamellar region foveolate anterior to in; lamellar cuspsseparate, obliquely tapered medially, with small dens lateral to le; notogaster with largefoveae (40-100) separated by thick ridges; marginal notogastral setae short (25-45),becoming longer posteriorly, needle-like and somewhat decurved; p1-3 decurved; c2posterior to bothridium, curved; tibia I with 4 setae and 2 piliform solenidia.Overview: Specimen from 690 was originally separated as “Cepheus sp. 5?Barcodes:ID Check: Determination by DEW based on Jacot (1928, 1938); Hammer (1952), Gilyarov &Krivolutsky (1975), Sitnikova (1975); Weigmann (2006).Similar taxa:ABMI Site Records: 2007: 512, 514, 664. 2008: 443, 690, 1354, FM06. 2009: 1, 1529. 2010:352, ALPAC-8, ALPAC-10. 2011: 93, 452, 481, A477, A635-1, A637-1, A7, OG-1275-1.203

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: Cepheus sp. reported from AB, BC, MB, QC, NB, NS;[Narrow Lake (54°35’ N, 113°37’ W)]Images:Ecology: The Narrow Lake specimen is from moss near the lake shore.Literature: Gilyarov & Krivolutsky (1975); Sitnikova (1975); Marshall et al. (1987); Weigmann(2006).Cepheus sp. 2B DEW (RAM 99000010)Also Known As:ABMI code/Common name: CEPHS2BDiagnostic characters: ventral length 630, red-brown; notogaster with mostly small foveae (10-20) separated by often very thick ridges; lamellae rounded distally, without dens; bo (80-85) with distinct, barbed club about 1/3 rd length in slender, curved, simple?, falling shortof tips of lamellae; notogastral setae short (20-40), simple; c2 present behind bothridium.Overview: distinctive notogastral ornamentationBarcodes:ID Check: Determination by DEW based on Jacot (1928, 1938); Hammer (1952), Gilyarov &Krivolutsky (1975), Sitnikova (1975); Weigmann (2006).Similar taxa:ABMI Site Records: 2007: 1135. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: Cepheus sp. reported from AB, BC, MB, QC, NB, NSImages: LM (1135)Ecology:Literature: Gilyarov & Krivolutsky (1975); Sitnikova (1975); Marshall et al. (1987); Weigmann(2006).Eupterotegaeus Berlese, 1916 (ITIS 733774)(Back to Genera of Cepheidae)Diagnostic characters: monodactyl or tridactyl; lamellar cusps projecting well beyond rostrumand with median knife- to shoe-like process; 10 or fewer pairs of notogastral setae, seta c2absent; cerotegument thick, glove-like.Also Known As: Diodontocepheus Type species: Tegeocranus ornatissimus Berlese, 1908World species: 10: E. armatus Aoki, 1969 (Japan), E. dentatus Sitnikova, 1979 (Bolivia), E.flavus (Ewing, 1918) (OR), E. nasalis Sitnikova, 1979 (Ecuador), E. ornatissimus (Berlese,1908) (Tegeocranus =Diodontocepheus steinboecki E.204

Almanac of Alberta Oribatida 2.3 13 January 2013pseudosculptus (Coggi, 1900) (Italy), E. rhamphosus Higgins & Woolley, 1968 (OR, BC),E. rostratus Higgins & Woolley, 1963 (WA, CA, CO, WY, AB), E. spinatus Higgins &Woolley, 1963 (UT), E. xizangensis Wang & Solhøy, 2001 (Tibet)Comments: The thick cerotegument tends to obscure the shape of the lamellae and rostrum.Canadian species listed on DOC (bold = AB): Eupterotegaeus ornatissimus (Berlese, 1908); E.rhamphosus Higgins & Woolley, 1963; E. rostratus Higgins & Woolley, 1963;Eupterotegaeus sp.B6. Key to adult Eupterotegaeus in or potentially in North America1. Tarsi tridactyl; anterior notogastral margin without a pair of short, tubercles posterior to thebothridia; ventral enantiophysis E4 absent (Fig. B6.1A) .......................................................... 2- Tarsi monodactyl; anterior notogastral margin with a pair of tubercles forming enantiophyseswith a posterior tubercle of the bothridium; lamellae broad, converge, acuminate distomedially;notogastral cerotegument reticulate over evenly microtuberculate cuticle; ventralplate with a pair of enantiophyses (E4) bracketing the genital opening laterally; OR, BC, AB(Fig. B6.1B) ...................................... Eupterotegaeus rhamphosus Higgins & Woolley, 1963Figure B6.12. Median lamellar process broad, knife-shaped (Fig. B6.2A) ........................................................ 4- Median lamellar process narrow, needle-like, “shoe-shaped” (Fig. B6.2B) ................................ 3205

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B6.23. Sensillus expanded distally; translamellar spine present; 9 pairs notogastral setae; rostrumrectangular; anterior margin of notogaster without dens; 580-645; Japan (Fig. B6.3A) ........................................................................................................ Eupterotegaeus armatus Aoki, 1969- Sensillus slightly swollen; translamellar spine absent; 8 pairs notogastral setae; rostrummucronate; anterior margin of notogaster with dens; 659-755; QC, NF, Holarctic (Fig. B6.3B)............................................................................. Eupterotegaeus ornatissimus (Berlese, 1908)Figure B6.34. Ventral length

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B6.45. Translamella absent, without median spine; rostrum with small mucro; notogastral shieldfoveolate; length 612-700; WA, CA, CO, WY, AB (Fig. B6.5A) .............................................................................................................. Eupterotegaeus rostratus Higgins & Woolley, 1963- Translamella present and bearing a strong median spine; rostrum truncate; notogaster reticulate,10 pairs of setae on short tubercles; length 594; UT (Fig. B6.5B) ................................................................................................................. Eupterotegaeus spinatus Higgins & Woolley, 1963Figure B6.5207

Almanac of Alberta Oribatida 2.3 13 January 2013*Eupterotegaeus rhamphosus Higgins & Woolley, 1963Also Known As:ABMI code/Common name: EUPTRHADiagnostic characters: Ventral length 400-460. Cerotegument thickly covers entire body,reticulate dorsally; dorsal cuticle evenly pebbly (microtuberculate), ventral plate with shortridges and microtubercles except epimeron I and pedotecta foveolate, posterior epimeraweakly foveolate, mentum micropunctate; rostrum entire, rostral setae sessile; le with basessmaller in diameter than alveoli; interlamellar setae minute (~5); bo (~35) with paddleshaped,densely barbed (cerotegument) head; posterior of prodorsum with 2 strong mediantubercles. Notogaster microtuberculate under reticulate cuticle; humeral processes welldeveloped and with reticulate-tuberculate ornamentation, with 9 pairs (la, lm, lp, h1-3, p1-3) spine-like notogastral setae (17-18), on short tubercles; anterior notogastral margin witha pair of tubercles forming enantiophyses with a posterior tubercle of the bothridium.Ventral plate cuticle with small ridges and tubercles, foveolate in epimeral region; a strongpair of enantiophyses bracket the genital opening laterally (posterolateral seta of epimeron 4borne on the anterior apophysis); 6 pairs of genital setae. Monodactyl.Overview: Although the figures and description in Higgins & Woolley (1968) are marginal, thelamellae, tubercles on the anterior margin of the notogaster, and monodactyl tarsi supportthe identification of this mite as Eupterotegaeus rhamphosus. This is the first report of thismite from Alberta.Barcodes:ID Check: Determination by DEW based on Woolley & Higgins (1968), Aoki (1969); RANconfirms the E4 apophysis is present.Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: 1529. 2010: none. 2011: 1262.DOC (1/2008): [+other] Distribution: Distribution: BC [OR, CO].Images: LMEcology: Gravid females carry at least two large eggs. Gut contents include dark hyphae.Literature: Higgins & Woolley (1963); Marshall et al. (1987).208

Almanac of Alberta Oribatida 2.3 13 January 2013Eupterotegaeus cf rostratus Higgins & Woolley, 1963 (ITIS 733xxx)Also Known As: reported as Eupterotegaeus sp. 1 DEW in Version 1.0 of the AlmanacABMI code/Common name: EUPTROSDiagnostic characters: From Higgins & Woolley (1963): length ~612; rostrum rectangular, withsmall medium dens; bo slightly swollen, 10 pairs notogastral setae (probable error), 6 pairsgenital setae, lamellae knife-shaped, translamellar spine absent.Ventral length 620-640. Cerotegument thickly covers entire body, reticulate dorsally, and withtriangular interlamellar region. Cuticle of prodorsum mostly foveolate, but granulate inposterior interlamellar area and smooth on lamellar processes; rostrum deeply notchedlaterally with median mucro and 2 small apophyses carrying rostral setae; le with swollenbases greater in diameter than alveoli and curve mediad, barbed (cerotegument) on outermargin; rostral setae inserted on small apophyses on either side of mucro; interlamellarsetae small (15) and obscured by cerotegument; bo (~135, 100 beyond bothridium) slenderwith slightly expanded, truncate, and densely barbed (cerotegument) head; posterior ofprodorsum with 2 strong median tubercles and irregular margin. Notogaster micropunctateand foveolate in central raised area, becoming subreticulate in marginal band and on209

Almanac of Alberta Oribatida 2.3 13 January 2013strongly developed humeral processes, with 9 pairs (la, lm, lp, h1-3, p1-3) spine-likenotogastral setae (17-18), on short tubercles. Ventral plate coarsely foveolate, with 6 pairsof genital setae. Tridactyl.Overview: A few minutes in concentrated (6%) sodium hypochlorite dissolves the cerotegumentand produces specimens where the cuticular characters can be seen. I believe my specimensfrom ABMI 1402 and Canmore are likely the same species reported as Eupterotegaeusrostratus Higgins & Woolley, 1963 in Mitchell & Parkinson (1976) and Mitchell (1978).These may be rostratus or a closely related new species. Differences from the descriptionand figures in Higgins & Woolley (1963) include rostral setae on short apophyses (vs notshown), posterior notogaster with 2 strong median tubercles (vs row of low tubercles), and9 (vs 10) pairs of notogastral setae. Figure 1 in Higgins & Woolley (1963) shows theadditional seta more or less in the position of dm – or the opening of the opisthonotal gland,which may have been mistaken for a setal alveolus.Barcodes:ID Check: Determination by DEW based on Woolley & Higgins (1963), Aoki (1969).Similar taxa: E. ornatissimus has 8 pairs of notogastral setae, shoe-shaped lamellae, a rostralhorn, and a median dens on the anterior margin of the notogaster; E. armatus Aoki, 1969has a translamellar spine and a fan-shaped sensillus; Eupterotegaeus spinatus Higgins &Woolley, 1963 is similar but allegedly has a translamella with a spine.ABMI Site Records: 2007: none. 2008: 1402. 2009: none. 2010: none. 2011: 962, 996, 1231,1262.DOC (1/2008): [+other] Distribution: Distribution: AB (Kananaskis, 1400 m, 51°02’N,105°01’W); [CO, WY, CA, WA]; [AB: Canmore Nordic Center, decaying litter,17.vii.2009, S.P. Latonas]Images: SEMs (Canmore)Ecology: This mite was an inhabitant of the litter layer of an aspen woodland (Mitchell 1978).Field collected animals had gut contents that consisted primarily of pigmented hyphae andin the laboratory, adults fed on the fungus Phoma exiga and unidentified pigmented hyphae(Mitchell & Parkinson 1976).Literature: Higgins & Woolley (1963), Aoki (1969); Carter & Cragg (1976); Mitchell &Parkinson (1976); Mitchell (1978); Marshall et al. (1987).Oribatodes Banks, 1895 (ITIS 733777)Diagnostic characters: monodactyl; notogastral setae long, curved, extending beyond bodymargin; lamellar cusps usually separated at their base;Also Known As:Type species: Oribatodes mirabilis Banks, 1895World species: 3 including Oribatodes crenulatus Csiszár, 1962 from southern Europe (Bulgaria)and Oribatodes heterosetosus Sitnikova, 1975 from Southern Russia and Georgia.210

Almanac of Alberta Oribatida 2.3 13 January 2013Comments: Cepheus lamellatus Banks, 1906 and Tegeocranus longisetus Berlese, 1910 areconsidered junior synonyms of the type species.Canadian species listed on DOC (bold = AB): Oribatodes mirabilis Banks, 1895B7. Key to Oribatodes Species of the World1. Interlamellar setae long, extending beyond tips of lamellae (Fig. B7.1A) .................................. 2- Interlamellar setae considerably shorter than lamellae (Fig. B7.1B) .......................................................................................................................................... Oribatodes mirabilis Banks, 1895Figure B7.12. Lateral margin of lamella with tooth arising about half the distance to the cusp; lamellae joinedby narrow translamella; sensillus relatively long, club elongate, slender, barbed (Fig. B7.2A) ................................................................................... Oribatodes heterosetosus Sitnikova, 1975- Lateral margin of lamella simple, without tooth; lamellae separate, translamella absent;sensillus short and with a distinct club (Fig. B7.2B) ........ Oribatodes crenulatus Csiszár, 1962Figure B7.2211

Almanac of Alberta Oribatida 2.3 13 January 2013*Oribatodes mirabilis Banks, 1895 (ITIS 737843)Also Known As: Tegeocranus longisetus Berlese, 1910ABMI code/Common name: ORIBMIRDiagnostic characters: ventral length 600-720, dark brown to black; notogastral foveae large,irregularly oval with some coalescence; notogastral setae relatively long and arranged alongU-shaped carina, lp, h3, h2 longest (~130-200), curved, barbed, tapering and extendingbeyond body margin; c2, la, lm similar but somewhat about half as long and thicker; h1, p1shorter (

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444)]Images: SEM (MP, Meanook)Ecology:Literature: Gilyarov & Krivolutsky (1975); Sitnikova (1979); Marshall et al. (1987);.Back to Table of ContentsAmeroidea Bulanova-Zakhvatkina, 1957Hungarobelbidae Miko & Travé, 1996Hungarobelba Balogh, 1943Diagnostic characters:Also Known As:Type species: Belba visnyai Balogh, 1938World species: ~2 described speciesComments: Also see Veloppia kananaskis Norton, 1978, Fosseremus laciniatus (Berlese, 1905)in Part IICanadian species listed on DOC (bold = AB): Hungarobelba sp.Hungarobelba sp.Also Known As:ABMI code/Common name: HUNGSP1Diagnostic characters:Overview: Hungarobelba is treated as Damaeoidea by some, but Miko & Travé (1996)demonstrated it belongs to Ameroidea and deserves its own family.Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, BCImages:Ecology: The only report of this genus in Alberta is from the Powell & Skaley (1975) study oflitter arthropods associated with comandra blister rust, but an unidentified species is alsoreported by Lindo (2004-2007) from BC. We have on hand one collection of a similar mite213

Almanac of Alberta Oribatida 2.3 13 January 2013from Dinosaur Provincial Park, AB; however, we are currently treating this species as amember of Belba s.l.Literature: Powell & Skaley (1975); Marshall et al. (1987).Eremaeoidea Oudemans, 1900 (ITIS 733364)Back to Table of Contents(Back to Key to Brachypylina)Eremaeidae Oudemans, 1900 (ITIS 553092) Hermit MitesB8. A Key to the Genera of Eremaeoidea of Alberta1. Anterior margin of notogaster with 2 pairs of tubercles (Fig. B8.1A) ................................................................................................................... Megeremaeus kootenai Behan-Pelletier, 1990- Anterior margin of notogaster without tubercles (Fig. B8.1B) .................................................... 2Figure B8.12. Ventral plate with a V- to U-shaped projection behind the anal opening and usually withposteromarginal sclerite (Fig. B8.2A) ...........................................Eueremaeus Mihelčič, 1963- Ventral plate rounded posteriorly and without posteromarginal sclerite (Fig. B8.2B) ............................................................................................................................Eremaeus CL Koch, 1835Figure B8.2214

Almanac of Alberta Oribatida 2.3 13 January 2013Eremaeus CL Koch, 1835 (ITIS 733908)Diagnostic characters: ventral plate rounded posteriorly, without postanal process orposteromarginal scleriteAlso Known As: none in use.Etymology – erem (G) – a lonely place, eremite – a recluse, hermitType species: Eremaeus hepaticus CL Koch, 1835World species: 26Comments:Canadian species listed on DOC (bold = AB): Eremaeus appalachicus Behan-Pelletier, 1993; E.boreomontanus Behan-Pelletier, 1993; E. brevitarsus (Ewing, 1917); E. grandisHammer, 1952; E. kananaskis Behan-Pelletier, 1993; E. kevani Behan-Pelletier, 1993;E. occidentalis Behan-Pelletier, 1993; E. oresbios Behan-Pelletier, 1993; E. plumosusWoolley, 1964; E. salish Behan-Pelletier, 1993; E. translamellatus Hammer, 1952B9. A Key to the Species of Eremaeus in Alberta (modified from Behan-Pelletier 1993)1. 11 pairs of notogastral setae (c2 present) (Fig. B9.1A) .............................................................. 2- 10 pairs of notogastral setae (c2 absent); AB, BC (Fig. B9.1B) ........................................................................................................................ Eremaeus boreomontanus Behan-Pelletier, 1993215Figure B9.1

Almanac of Alberta Oribatida 2.3 13 January 20132. Costulae well developed; bo setiform to slightly expanded, longer than distance betweenbothridia; tubercle La present (Fig. B9.2A) .............................................................................. 3- Costulae absent; bo clubbed, shorter than distance between bothridia; posterior prodorsum with2-3 rows of small tubercles; tubercle La absent; 616-713; AB (Fig. B9.2B) ......................................................................................................... Eremaeus kananaskis Behan-Pelletier, 1993Figure B9.23. Notogastral seta c1 inserted in normal cuticle, not surrounded by ring of porose cuticle (Fig.B9.3A) ....................................................................................................................................... 4- Notogastral seta c1 inserted in ring of porose cuticle; 512-544; CO, NV, AB (Fig. B9.3B) ........................................................................................... Eremaeus walteri Behan-Pelletier, 1993Figure B9.34. Costulae long and parallel, not diverging anteriorly, no series of translamellae; other charactersvary (Fig. B9.4A)....................................................................................................................... 5- Costulae (48-65) concave, diverging distally and with several ‘translamellae’; notogaster,ventral plate & mentum weakly foveate; prodorsum with U-shaped ridges postero-medially +La; in (89-116) barbed, tapered; bo (121-153) slightly expanded; 5-6 pairs anal setae; 518-745; AB, SK, BC, YT, AK (Fig. B9.4B) ............... Eremaeus translamellatus Hammer, 1952216

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B9.45. Integument minutely pitted; interlamellar seta (150-160) similar in length to sensillus and tonotogastral setae; posterior prodorsum with 1-2 pairs postero-medial tubercles + La; costulae80-94 long; 6 pairs of adanal setae; 8 (7-10) pairs of anal setae; 642-829; AB, BC, WY,CO,UT, WA, AZ (Fig. B9.5A) ............................................... Eremaeus plumosus Woolley, 1964- Notogaster, ventral plate, intercostular area strongly foveolate; prodorsum with 3-6 pairspostero-medial tubercles + La; in ~1/2 length of bo (120-140); 5 pairs anal setae; 656-720;AB, BC, ID, CO, NM, AZ, NE, OR (Fig. B9.5B) .. Eremaeus oresbios Behan-Pelletier, 1993217Figure B9.5

Almanac of Alberta Oribatida 2.3 13 January 2013Eremaeus boreomontanus Behan-Pelletier, 1993 (ITIS 73xxxx)Also Known As: none.ABMI code/Common name: EREMBOR; Boreal-montane Hermit MiteDiagnostic characters: 700-780; foveolate dorsally and ventrallyOverview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, BCImages:Ecology: An inhabitant of spruce litter, rotten poplar stump, dry moss, bark on logs, mixedconifer litter (Behan-Pelletier 1993).Literature: Behan-Pelletier (1993).Eremaeus kananaskis Behan-Pelletier, 1993Also Known As:ABMI code/Common name: EREMKAN; Kananaskis Hermit MiteDiagnostic characters:Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: ABImages:Ecology: Found in moss and lichens in alpine scree (Behan-Pelletier 1993).Literature: Behan-Pelletier (1993).Eremaeus oresbios Behan-Pelletier, 1993Also Known As:ABMI code/Common name: EREMOREDiagnostic characters:218

Almanac of Alberta Oribatida 2.3 13 January 2013Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, BCImages:Ecology: Found in litter along creeks, under aspen, on leaves (Behan-Pelletier 1993).Literature: Behan-Pelletier (1993).Eremaeus plumosus Woolley, 1964Also Known As:ABMI code/Common name: EREMPLUDiagnostic characters:Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, BCImages:Ecology: Found in spruce litter, Douglas fir litter, rotting logs, cedar krummholz, meadows inlodgepole pine, pine litter (Behan-Pelletier 1993).Literature: Marshall et al. (1987); Behan-Pelletier (1993).Eremaeus translamellatus Hammer, 1952 s.l. (ITIS 738565)Also Known As:ABMI code/Common name: EREMTRA; Translamellate Hermit MiteDiagnostic characters: length 460-560 (518-745), brown; bo (130) slightly expanded; in (115-120) barbed, acuminate; prodorsum with foveae anterior to insertions of legs I; costulaefunnel-shaped, translamella sometimes visible; posterior margin with row of tubercles;notogastral setae long (80-85), barbed, c1-3 present; notogaster and ventral plate foveolate;6 pairs genital setae; 7 pairs anal setae; epimere with reticulations, epimere (II) III with rowof tubercles; tubercle of pedotectum II prominent, rounded; trochanters III-IV with spurs.219

Almanac of Alberta Oribatida 2.3 13 January 2013Overview: another difficult complex of variable forms possibly including more than one species;specimens from BOG5 have very long in and 8 pairs anal setaeBarcodes:ID Check: Determination by DEW based on Behan-Pelletier (1993). BOG5 SW, 1134 NEchecked by VBP April 2008.Similar taxa:ABMI Site Records: 2007: 216, 331, 358, 389, 514, 574, 576, 1068, 1101, 1102, 1134, BOG5,UPL5. 2008: 375, 443, 472, 689, 690, 751, 752, 974, 1007, 1008, 1378, SL13, SL18. 2009:3, 32, 33, 497, 559, 568, 881, 1491, 1529. 2010: , 383, 876, 909, 1035, 1037, 1170, 1171,1201, 1202, 1207. 2011: 65, 91, 93, 122, 242, 302, 302, 962, 964, 970, 995, 996, 997, 1002,1002, 1029, 1030, 1031, 1071, 1136, 1231, 1233, 1238, A761-4.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, BC, SK; [Lindo & Visser (2004)]Images:Ecology: Associated with various forest and open litter habitats, logs, moss, rodent nests, lichenheath. Behan-Pelletier (1993) considered this mite to be an inhabitant of rich mesic to drytundra, rich subarctic and arctic subalpine, and Lodgepole pine, Engelmann spruce, Douglasfir, alder, aspen, and paper birch litter.Literature: Marshall et al. (1987); Behan-Pelletier (1993); Lindo & Visser (2004).**Eremaeus walteri Behan-Pelletier, 1993 (ITIS 738567)Also Known As:ABMI code/Common name: EREMWAL; Walter’s Hermit MiteDiagnostic characters: 450-544, yellow- to red-brown; short costulae present; integumentweakly foveolate (stronger in darker specimens); in with dense barbs, ~½ length of longstalked,gradually clavate bo; La present and bracketing area of small ridges; column of 3-4rows of well developed sigillar scars between in and costulae; 11 pairs notogastral setae, c1-c2 closely inserted, c1 with porose ring at base (easiest to see under oil or if seta brokenoff); 5 pairs anal and adanal setae;Overview: somewhat smaller (450-480) than type collections from Rocky Mountains inColorado and Nevada (512-544); light coloured specimens fit description best; darkerspecimens have foveae between costulae and tubercle-like ridges on posterior margin ofprodorsum; porose ring at base of c1 varies in size, even on same specimenBarcodes:ID Check: Determination by DEW based on Behan-Pelletier (1993). 1601 NE checked by VBPApril 2008.Similar taxa: Eremaeus nortoni Behan-Pelletier, 1993 from Appalachian Mountains of easternNorth AmericaABMI Site Records: 2007: 1601. 2008: none. 2009: none. 2010: none. 2011: none.220

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: CO, NVImages:Ecology: An inhabitant of aspen and pine litter, grassy areas in spruce forest, and dry alpinetundra (Behan-Pelletier 1993).Literature: Behan-Pelletier (1993).Eueremaeus Mihelčič, 1963 (ITIS 733909)Diagnostic characters: ventral plate with postanal process and usually with posteromarginalsclerite (PMS)Also Known As: Kartoeremaeus Higgins, 1979Etymology – erem (G) – a lonely place, eremite – a recluse, hermitType species: Eremaeus oblongus CL Koch, 1836World species: 35Comments:Canadian species listed on DOC (bold = AB): Eueremaeus acostulatus Behan-Pelletier, 1993;Eu. aridulus Behan-Pelletier, 1993; Eu. aysineep Behan-Pelletier, 1993; Eu. chiatous(Higgins, 1979); Eu. columbianus (Berlese, 1916); Eu. foveolatus (Hammer, 1952); Eu.marshalli Behan-Pelletier, 1993; Eu. masinasin Behan-Pelletier, 1993; Eu. michaeliBehan-Pelletier, 1993; Eu. nahani Behan-Pelletier, 1993; Eu. oblongus (C.L. Koch, 1836);Eu. osoyoosensis Behan-Pelletier, 1993; Eu. proximus (Berlese, 1916); Eu.quadrilamellatus (Hammer, 1952; Eu. sp. nr. oblongus (C.L. Koch, 1836); Eu. stiktos(Higgins, 1962); Eu. tetrosus (Higgins, 1979); Eu. trionus (Higgins, 1979); Eu. yukonensisBehan-Pelletier, 1993B10. Key to the Species of Eueremaeus in Alberta(modified from Behan-Pelletier 1993)1. Five pairs of anal and 4-5 pairs of adanal setae (notogastral setae normal length)(Fig. B10.1A)................................................................................................................................................... 2- 3-4 pairs of anal and adanal setae (notogastral setae very short, body areolate); tibiae II-IV3(1)-2(1)-2(1); PMS absent; postanal process strongly V-shaped and +/- continuous withventral plate ridges; notogaster and venter with distinct foveae; 499-570; trans-Canadian toAB Rockies (Fig. B10.1B) .............................................Eueremaeus tetrosus (Higgins, 1979)221

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B10.12. Prodorsum with a single flattened (or bifurcate), postero-median tubercle (La absent) ANDcostuale widely spaced, parallel; 4 pairs adanal setae (5 anals); epimere II with 1 seta;trochanter III with 2 setae (Fig. B10.2A) ............................... Eueremaeus chiatous group (7)- Prodorsum smooth posteriorly OR with several to numerous tubercles or folded ridges;costulae relatively close together, parallel, concave, converging or indistinct to absent; 5 pairsadanal setae; epimere II with 2-3setae; trochanter III with 3 setae (Fig. B10.2B) .......................................................................................................................................... Eueremaeus s.s. (3)Figure B10.2Eueremaeus sensu stricto3. Prodorsum with one row or 2-3 irregular rows of posterior tubercles; costulae parallel toconcave; other characters vary (Fig. B10.3A) ........................................................................... 4- Posterior prodorsum with small ridges; costulae converging anteriorly, foveolate between andaround them; femora I-II with foveae; in 1/2 bo; notogaster, prodorsum, and venter foveolate;La absent; PMS subrectangular, postanal process U-shaped; trochanter III-IV spurs 13-18; 5pairs anal, adanal setae; 473-558; AB, YT, NU, SK, BC, MT, WA, AK (Fig. B10.3B) ............................................................................................. Eueremaeus foveolatus (Hammer, 1952)222

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B10.34. Costulae distinct, concave and somewhat converging, sometimes with translamellar folds;prodorsum with several rows of posterior tubercles; in various; widely distributed ................ 5- Costulae indistinct and subparallel to absent; prodorsum with single row of tubercles;interlamellar seta shorter than sensillus; extreme SE AB ........................................................................................................................................ Eueremaeus aridulus Behan-Pelletier, 19935. Interlamellar setae (50-60) isodiametric, blunt distally, 3/4 th length of bo (81); notogaster &ventral plate with faint foveae; foveae present between and anteriad costulae (32-36), c-c 20;bo with barbed stalk and gradually expanding to clavate head; numerous tubercles onposterior prodorsum including small La; femora III-IV with long paraxial carina; trochanterIII-IV cusps 12-22; 486-538; AB, SK, MB, CO (Fig. B10.4A) ......................................................................................................................... Eueremaeus masinasin Behan-Pelletier, 1993 -- Interlamellar setae tapered distally, about ½ or less length of bo (Fig. B10.4B) .......................... 6223

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B10.46. Prodorsal costulae with posterior and anterior extensions, and usually several translamellarbars, weakly foveolate between costulae and more strongly foveolate anteriorly; c2 sacculedoes not reach c1-cp line; PMS usually distinct; usually 531-719 long; AB, widespread inNorth America (Fig. B10.5A)........................... Eueremaeus marshalli Behan-Pelletier, 1993- Prodorsal costulae simple, not foveolate between lines and at most weakly foveolate anteriorly;often with translamellar bars; c2 saccule reaches c1-cp line; PMS not distinct; 440-500 long;AB, YT, NT, NU (Fig. B10.5B) ................... Eueremaeus quadrilamellatus (Hammer, 1952)224Figure B10.5

Almanac of Alberta Oribatida 2.3 13 January 2013Eueremaeus chiatous species group7. Notogaster without humeral shelf laterad seta c1 (Fig. B10.6A) ................................................ 8- Notogaster with humeral shelf laterad seta c1; postanal process strongly V-shaped;posteromarginal sclerite absent; tibiae II-IV with 3-2-2 setae; notogaster and venter withfoveae; transverse row of foveae on anterior notogaster; 596-706; AB, BC, WUS (Fig.B10.6B) ......................................................................... Eueremaeus chiatous (Higgins, 1979)Figure B10.68. Sensillus shorter than distance between bothridia; costulae (60-81) subequal to minimumdistance between them; in fusiform, ½ length of clavate bo (56-73); femora I-II with narrowcarina with renulated margins; trochanter III-IV cusps 10; 512-622; AB, BC, CO (Fig.B10.7A) ...................................................................................................................................................................................................................Eueremaeus aysineep Behan-Pelletier, 1993- Sensillus equal to or longer than distance between bothridia; costulae 2x minimum distance;costulae >minimum distance; in longer, setiform, bo gradually swelling; male 713; AB, BC,WY, CO, UT (Fig. B10.7B) ........................ Eueremaeus osoyoosensis Behan-Pelletier, 1993225Figure B10.7

Almanac of Alberta Oribatida 2.3 13 January 2013*Eueremaeus aridulus Behan-Pelletier, 1993Also Known As:ABMI code/Common name: EUERARD / Arid Hermite MiteDiagnostic characters: costulae evanescent; one row of posterior tubercles; in shorter than bo;foveolate notogaster and ventral plate; 5 pairs anal and adanal setae.Overview:ID CheckSimilar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none. 2012: 1597DOC (1/2008): [+other] Distribution: SK near Val Marie [AB south of Cypress Hills]Images:Ecology: Behan-Pelletier (1993) considered this mite to be an inhabitant of shortgrass paririewith Opuntia.Literature: Behan-Pelletier (1993).Eueremaeus aysineep Behan-Pelletier, 1993Also Known As:ABMI code/Common name: EUERAYSDiagnostic characters:Overview:ID CheckSimilar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, BCImages:Ecology: Behan-Pelletier (1993) considered this mite to be an inhabitant of very dry birch andjuniper litter and moss.Literature: Behan-Pelletier (1993).Eueremaeus chiatous (Higgins, 1979) (ITIS 73xxxx)Also Known As: Kartoeremaeus chiatous Higgins, 1979ABMI code/Common name: EUERCHIDiagnostic characters: Ventral length 585-706; prodorsum with widely separated costulae, shortand isodiametric interlamellar setae; and single median tubercle (bifurcate in SL12226

Almanac of Alberta Oribatida 2.3 13 January 2013specimen); 10 pairs of short notogastral setae; dorsum and venter foveolate; trochanter IIIwith 2 setae; 5 pairs anal setae; 4 pairs adanal setae; postanal process bifurcate, PMSdistinct.Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1993).Similar taxa:ABMI Site Records: 2007: none. 2008: SL12. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, BC; [CA]Images:Ecology: Behan-Pelletier (1993) considered this mite to be an inhabitant of moss and lichens onbark and the litter of maples, hemlock, western juniper, aspen, whitebark pine, Jeffrey pine,Douglas fir, and spruce. This species also has been reported from the forest floor underamabilis fir, western hemlock, Sitka spruce and red cedar on Vancouver Island and frombranch and lichen samples from amabilis fir and western hemlock on Vancouver Island.(Lindo 2004-2007; Winchester & Lindo 2006; Winchester et al. (1996-2007).Literature: Higgins (1979); Marshall et al. (1987); Behan-Pelletier (1993).Eueremaeus foveolatus (Hammer, 1952) (ITIS 73xxxx)Also Known As:ABMI code/Common name: EUERFOV; Foveolate Hermit MiteDiagnostic characters: 473-558; notogaster and ventral plate anteriad, laterad, and betweencostulae; epimere I; genital and anal plates all foveolate; costulae 52-56, converginganteriorly; in thick, barbed ~1/2 length of clavate bo (88-97); la absent; PMSsubrectangular; postanal process U-shaped; 5 pairs anal and adanal setae; femora I-IIfoveolate antiaxially.Overview:Barcodes:ID Check:Similar taxa: Eu. masinasin has isodiametric in about 3/4ths length of bo; PMS subtriangular,postanal process V-shapedABMI Site Records: 2007: none. 2008: none. 2009: 1529. 2010: none. 2011: 1231, 1261.DOC (1/2008): [+other] Distribution: AB (Waterton Lakes, Jasper, Banff, Kananaskis, Writingon-StoneProvincial Park),YT, NU, NT, BC, SK, QC, NB; [AK]Images:Ecology: Behan-Pelletier (1993) considered this mite to be an inhabitant of rich mesic tundra,subarctic forest litter, and litter under herbs and aspen.227

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Hammer (1952); Marshall et al. (1987); Behan-Pelletier (1993).Eueremaeus marshalli Behan-Pelletier, 1993Also Known As:ABMI code/Common name: EUERMAR; Marshall’s Hermit MiteDiagnostic characters: 531-719, yellow- to red-brown; postanal process small, indistinct; in (35-40) barbed, acuminate, ~half length of bo (87-93); bo densely barbed, gradually clubbed;prodorsum with 2 posterior rows of tubercles; long (35-40), parallel costulae, about as farapart as long, often with translamella; notogaster with 10 pairs of slender setae, densely, butfaintly foveolate; epimeral fields with oval to reticulate ornamentation; 5 pairs of genitalsetae; 5 pairs of anal setae; trochanters III-IV with strong spur.Overview:Barcodes: FM07 (658), 721 (658)ID Check: Determination by DEW based on Behan-Pelletier (1993); Walter (herein).Similar taxa: Eueremaeus marshalli is part of a complex of species that includes Eu.quadrilamellatus Hammer, 1952 (the type slide has no mite on it and the originaldescription is lacking in specifics) and Eu. masinasin that have proved hard to separate;However, I believe this problem has now been solved and is supported by the limited DNAevidenceand SEM study. Eu. quadrilamellatus Hammer, 1952 is the smallest of thesespecies and has simple costulae with no intercostular or distal prodorsal (pre-costular)foveae. Eu. marshalli has fainter intercostular and pre-costular foveae, interlamellar setaethat taper to a point, and a rounded anterior edge to the notogaster. Eu. masinasin is similarin size, but has strong intercostular and precostular foveae, interlamellar setae that areisodiametric and blunt distally, and a straight median anterior margin to the notogaster thatis bracketed by a pair of small tubercles.ABMI Site Records: 2007: 358, 601, 617, 1103, 1133,. 2008: 412, 690, 721, 934, 1116, 1435(same slide as masinasin), BOG6, FM07, UPL1. 2009: 508, 697, 760, 1491. 2010: 354,909, 1171, 1500, 1652, OG-943-1, OG-1069-1, OG-1071-1, OG-1037-1, OG-1171-2. 2011:64, 65, 302, 362, 672, 1105, 1138, A635-1, OG-1082-1, OG-1160-1, OG-1248-1, OG-1275-1.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, BC, SK, MB, ON, QC, NB, NF; [MoosePasture Research Site 8 km W Chipman, AB (53.656667, -112.759444); Lindo & Visser(2004)]Images:Ecology: Bisexual: gravid females carry two large eggs. Gut contents are composed of pigmentedand unpigmented fungal hyphae and some spores. A very eurytopic species found in mesictundra, moss, lichen, fungi, and mixed coniferous and deciduous litters (Behan-Pelletier1993). Lindo (2004-2007) reported this species from western red cedar canopy in theWalbran Valley of Vancouver Island.Literature: Behan-Pelletier (1993); Lindo & Visser (2004).228

Almanac of Alberta Oribatida 2.3 13 January 2013Eueremaeus masinasin Behan-Pelletier, 1993 s.l. (ITIS 738587)Also Known As:ABMI code/Common name: EUERMAS; Writing-on-Stone Hermit MiteEtymology – masinasin = ‘has been written’ – Blackfoot name for the Writing-on-Stone area.Diagnostic characters: 475-560, red-brown; integument faintly foveolate, including betweenand anterior to costulae; notogaster with straight anterior margin with small lateraltubercles, 10 pairs of setae; in thick, densely barbed, and +/- blunt, >½ length (60-80%) oflength of gradually clavate bo; posterior margin of prodorsum with irregular rows oftubercles, larger tubercles at base of bothridium; costulae short, +/- postanal process small,but distinct; 5 pairs anal and adanal setae; femora I-II with small distal carinaOverview:Barcodes: 1635 (658 x 2), 1637 (658 x 3)ID Check: Determination by DEW based on Behan-Pelletier (1993); Walter (herein). 1601 NE,1602 NW, 1526 SE checked by VBP April 2008.Similar taxa: This mite is very similar to Eueremaeus marshalli except for thicker, more denselybarbed in and the straighter anterior margin of notogaster (usually with a pair of smalllateral tubercles). [Specimens from 358, 601, 617, 1103, 1133, BOG6 are somewhatintermediate (lateral tubercles not evident, in acuminate) but credited to masinasin in 2007– this needs to be reviewed. NB – 2009 moved to Eu. marshalli]. See comments under Eu.marshalli.ABMI Site Records: 2007: 1254, 1526, 1601 (on same slide as Eremaeus walteri), 1602, 1620.2008: 1190, 1191, 1192, 1222, 1434, 1435, 1436, 1477, 1557, 1558, 1635, 1637. 2009:1568, 1574, 1584, 1629, 1646, 72L-2, 72L-3, 72L-4, 72L-5, 72M-1, 72M-2, 72M-3, 72M-7,82H-3, 82H-4, 82H-5. 2010: none. 2011: 958, 1125, 1126, 1184, 1333, 1334, 1437, 1438,1439, 1461, 1561, 1576, 1577, OG-ABMI-1594-1, OG-1160-1, OG-1190-1, OG-1190-1,OG-1218-1, OG-1282-1, OG-1283-1, OG-1338-1, OG-1455-1, OG-1640.DOC (1/2008): [+other] Distribution: AB, SK, MB, [CO]Images:Ecology: This mite was described from Writing-on-Stone Provincial Park from grass and sod ondry hillside and collections from Kananaskis, Waterton Lakes, Cypress Hills, and theKinsella Ranch. This is a grassland species reported from sod, moss, assorted litter, dryshortgrass prairie, and alpine grasslands (Behan-Pelletier 1993). It is bisexual, and gravidfemales can carry 4 large eggs. Gut contents usually include fungal hyphae and sometimesspores. One specimen each from 1635SE(25) and 1436SW has the notogaster filled with anelongate yeast-like fungal parasite.Literature: Behan-Pelletier (1993).229

Almanac of Alberta Oribatida 2.3 13 January 2013Eueremaeus osoyoosensis Behan-Pelletier, 1993Also Known As:ABMI code/Common name: EUEROSODiagnostic characters:Overview:Barcodes:ID Check: Determination by DEWSimilar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, BCImages:Ecology: Behan-Pelletier (1993) considered this mite to be an inhabitant of dry wood litter ofponderosa pine, whitebark pine, and spruce.Literature: Behan-Pelletier (1993)Eueremaeus cf quadrilamellatus (Hammer, 1952)Also Known As:ABMI code/Common name: EUERQUA; Lost Hermit Mite230

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: Ventral length 440-510. Cerotegument microtuberculate. Prodorsummostly smooth, faintly reticulate above insertions of legs I; posterior tubercles low insejugal region, costulae short, not associated with foveae (at most weakly foveolate onrostrum), and with distal translamellar bar; in (35) barbed, tapering, < ½ length bo; sensillus(96) swollen distally and heavily barbed in distal 2/3rds. Notogaster faintly foveolate, with10 pairs notogastral setae (short (~15), blind saccule beneath cuticle in c2-position reachescp-c1 line); c1 (55) curved, tapering, with coarse dorsal barbs. 5-6 pairs anal setae. FemoraI-II with ventro-distal carina.Overview:Barcodes: 374 (658 X 2), 412 (658 x 3), 413 (655, 658 x 3);ID Check: Determination by DEW based on Hammer (1952); Behan-Pelletier (1993); Walter(herein)Similar taxa: The type specimen for this species is lost (the slide has no mite), but based on sizeand the illustrations in the description, the collections here appear to belong to this species.See Similar taxa comments under Eu. marshalli.ABMI Site Records: 2007: 276, 388, 389, 512, 543, 576 (one on slide with E. translamellatus),601, 617, 1068, 1101, 1103, 1135, UPL6. 2008: 374, 412, 413, [414 residual], 443, 473,751, 752, 975, 976, BOG1, FM04, SL18, SL21. 2009: 1, 2, 3, 14, 32, 33, 508, 697, 728,1529. 2010: 354, 1037, 1170, 1171, 1202, 1207, 1237, ALPAC-16. 2011: 65, 91, 121, 122,361, 451, 672, 962, 963, 970, 997, 1002, 1071, 1136, 1137, 1138, A702.OS.DOC (1/2008): [+other] Distribution: AB, BCImages:Ecology: Bisexual: gravid females carry two large eggs. Gut contents are composed primarily ofpigmented hyphae.Literature: Behan-Pelletier (1993)Eueremaeus tetrosus (Higgins, 1979) (ITIS 738597)Also Known As: Kartoeremaeus tetrosus Higgins, 1979ABMI code/Common name: EUERTETDiagnostic characters: 499-580, red-brown; postanal process very large, subtriangular;cerotegument of dense, large spherical granules; notogaster punctuate, venter foveolate; inminute, bo short, distinctly clubbed; notogastral setae very short; tibiae II-III-IV 3(1)-2(1)-2(1); 4 pairs of anal and adanal setaeOverview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1993). 1102 SE checked by VBPApril 2008.Similar taxa: Striking and distinctive; NB tibial chaetotaxy in key ignores solenidia; =Kartoeremaeus sensu Higgins231

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: 2007: 1102. 2008: 1618. 2009: 1510, 1529, 1567. 2010: 1169, 1201, OG-1069-1. 2011: 93, 272, 962, 963, 964, 996, og-1160-1.DOC (1/2008): [+other] Distribution: AB, SK, MB, ON, QC, NB, NS, NFImages: SEM (618)Ecology: A mite of meadows, moss, rotten logs, and the litter of aspen, lodgepole pine, willow,spruce (Behan-Pelletier 1993).Literature: Higgins (1979); Marshall et al. (1987); Behan-Pelletier (1993).Back to Table of ContentsMegeremaeidae Woolley & Higgins, 1968(Back to Eremaeoidea)Megeremaeus Higgins & Woolley, 1965Diagnostic characters: large eremaeoid mites with 2 pairs of tubercles on the anterior notogasterAlso Known As: none.Type species: Megeremaeus montanus Higgins & Woolley, 1965World species: 8Comments: Giant Hermit Mites are primarily of montane distribution in Alberta.Canadian species listed on DOC (bold = AB): Megeremaeus hylaius Behan-Pelletier, 1990; M.keewatin Behan-Pelletier, 1990; M. kootenai Behan-Pelletier, 1990; M. montanus Higgins& Woolley, 1965Megeremaeus kootenai Behan-Pelletier, 1990Also Known As:ABMI code/Common name: MEGEKOO; the Kootenai Giant Hermit MiteDiagnostic characters:Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, BCImages:Ecology:232

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Behan-Pelletier (1990)Gustavioidea Oudemans, 1900 (ITIS 733363)Comments: Also Known As the Liacaroidea, this superfamily is a rather heterogeneous group inwhich several genera have species with highly modified mouthparts.(Back to Key to Brachypylina)B11. Key to Families of Gustavioidea in Alberta1. Chelicerae robust, chelate-dentate (Fig. B11.1A) ....................................................................... 2- Chelicerae thread-like with distal serrations (Fig. B11.1B) .................................................................................................................................................. Gustaviidae, Gustavia Kramer, 1879Figure B11.12. Humeral region without a triangular process (Fig. B11.2A) ....................................................... 3- Humeral region with a triangular process (Fig. B11.2B) ..................................................................................................................................................Tenulialidae, Hafenferrefia Jacot, 1939Figure B11.23. Humeral region with 0–1 pair of setae (Fig. B11.3A) ................................................................. 4- Humeral region with 2 pairs of closely adjacent setae (c1 and c2) (Fig. B11.3B) ........................................................................................................ Liacaridae, Dorycranosus Woolley, 1969233

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B11.34. Genital plates large and closely inserted to anal plates (Fig. B11.4A) ..................... Astegistidae- Genital plates smaller, distance between genital and anal plates usually greater than length ofanal plates (Fig. B11.4B) ......................................................................................... PeloppiidaeFigure B11.4Astegistidae Balogh, 1961Comments: Only one undescribed species from this family is known from Alberta (Walter &Behan-Pelletier, in prep.), but small species of Cultroribula Berlese, 1908 andFurcoribula Balogh, 1943 may also be present.234

Almanac of Alberta Oribatida 2.3 13 January 2013B12. Key to Genera of Astegistidae in Alberta1. Rostrum with 3 large median teeth and lateral rows of 6-7 piars of teeth; body length 285-340(Fig. B12.1A) ........................................................Cultroribula taigagica Bayartogtokh, 2007- Rostrum entire or notched, but, without medial or lateral teeth; body length >400 (Fig. B12.1B).................................................................................................................. Astegistes Hull, 1916Figure B12.1Astegistes Hull, 1916Diagnostic characters: lamellae strongly convergent, joined medially, long cusps; notogastralsetae long, longer than lamellar setae. Dorsosejugal scissure incomplete mediallyAlso Known As:Type species: Zetes pilosus CL Koch, 1841World species: 3 species including the type species and A. hallaensis Choi, 1998 from Korea.Comments: The original type species Liacarus bicornis Warburton and Pearce, 1905 is a juniorsynonym of Z. pilosus. Species in this genus are considered freshwater inhabitants that needsaturated air to reproduce; they are found in wet moss, sodden organic debris, andfreshwater (Scatz & Behan-Pelletier 2008).Canadian species listed on DOC (bold = AB): Astegistes sp.Astegistes sp. 1 DEWAlso Known As: Astegistes sp.ABMI code/Common name: ASTESP1Diagnostic characters: see Walter & Behan-Pelletier (in prep.)Overview: Appears to be a new species.Barcodes: MP (0, 394, 512)235

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Weigmann (2006); Bayartogtokh (2007); Walter &Behan-Pelletier (in prep.). Checked by VBP April 2008.Similar taxa: Astegistes pilosus (CL Koch, 1841) has 6 pairs genital setae and rostral notches(~genal tooth)ABMI Site Records: 2007: none. 2008: none. 2009:1277, 1305. 2010: none. 2011: 1023.DOC (1/2008): [+other] Distribution: Astegistes sp. reported from AB, ON, NB; [Lindo & Visser(2004); Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444),Narrow Lake].Images: SEM (MP)Ecology: This mite lives in wet moss on lake margins.Literature: Marshall et al. (1987); Lindo & Visser (2004); Weigmann (2006); Bayartogtokh(2007); Walter (in prep.).Diagnostic characters:Also Known As:Type species: Notaspis juncta Michael, 1885World species: about 25 species.Comments:Cultroribula Berlese, 1908Canadian species listed on DOC (bold = AB): Cultroribula bicultrata (Berlese, 1905) ON QC NSNF; Cultroribula dentata Willmann, 1950 YT NU NT [Holarctic]; Cultroribula divergensJacot, 1939 ON QC; Cultroribula sp. NB NS.*Cultroribula cf taigagica Bayartogtokh, 2007Also Known As:ABMI code/Common name:Diagnostic characters: tridactyl; 6 pairs of genital setae?; rostrum divided into 3 large teethbetween rostral setae and with rows of 6-7 lateral teeth; 285 long..Overview: A small mite with a Holarctic distribution. This is the first record for North America.Barcodes:ID Check: Determination by DEW based on Bayartogtokh (2007), Weigmann (2008).Similar taxa: Cultroribula dentata Willmann, 1950 (larger and has simple interlamellar setae; 5pairs of genital setae) Cultroribula vtorovi Krivolutsky, 1971 (larger with short, smoothinterlamellar setae and 5 pairs of genital setae).ABMI Site Records: 2007: none. 2008: none. 2009:none. 2010: 1037 residuals. 2011: none.DOC (1/2008): [+other] Distribution: [Holarctic]236

Almanac of Alberta Oribatida 2.3 13 January 2013Images: SEM 1037Ecology:Literature: Marshall et al. (1987); Weigmann (2008); Bayartogtokh (2007).Gustaviidae Oudemans, 1900 (ITIS 733450)Gustavia Kramer, 1879 (ITIS 733450)Diagnostic characters: Subspherical mites with styletiform chelicerae.Also Known As: none in current use.Type species: Leiosoma microcephalus Nicolet, 1885World species: 14Comments:Canadian species listed on DOC (bold = AB): Gustavia parvula (Banks, 1909); Gustavia sp.*Gustavia sp. 1 DEW (RAM 99000024)Also Known As:ABMI code/Common name: GUSTSP1Diagnostic characters: length 480-580, subspherical; bo (105-110) fusiform, acuminate,sparsely barbed, ~1/3rd length sparsely barbed stalk; rostrum short. Notogastral setaereduced to alveoli. 6 pairs genital setae.Overview:Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).Similar taxa: Overlaps in body length (520-640) with Gustavia microcephala (Nicolet, 1855),but this Palearctic species has a fusiform head to the sensillus that is half the length of thetrichobothrium. Gustavia magnilamellata (Ewing, 1909) also has a relatively short stalk tothe sensillus. Gustavia parvula (Banks, 1909) is much smaller (~400 long). Other EuropeanGustavia have an elongate body (G. fusifera (CL Koch, 1841) or an elongate rostrum (G.major (Berlese, 1904), G. longirostris Mihelcic, 1957).ABMI Site Records: 2007: 792, 793, 825, UPL7. 2008: 1085, SL12. 2009: 882. 2010: 1209.2011: none.DOC (1/2008): [+other] Distribution: Gustavia sp. reported from MB; [Moose Pasture ResearchSite 8 km W Chipman, AB (53.656667, -112.759444)]Images: SEM (MP)Ecology: Gravid females may carry at least 6 eggs.Literature: Marshall et al. (1987).237

Almanac of Alberta Oribatida 2.3 13 January 2013Liacaridae Sellnick, 1928 (ITIS 733451)Comments: Liacarus Michael (=Leuroxenillus Woolley & Higgins 1966) has not yet beenrecorded in Alberta, but is likely to be here.B13. Key to Genera of Liacaridae in Alberta1. Bothridial seta spindle-shaped (Fig. B13.1A) .........................................Liacarus Michael, 1898- Bothridial seta claviform (Fig. B13.1B) ......................................... Dorycranosus Woolley, 1969Figure B13.1Dorycranosus Woolley, 1969 (RAM 99000xx)Diagnostic characters: bo claviform and spiculate; notogaster pittedAlso Known As: Liacarus Michael, 1898; Procorynetes Woolley, 1969Type species: Liacarus abdominalis Banks, 1906World species: 32Comments:Canadian species listed on DOC (bold = AB): Dorycranosus abdominalis (Banks, 1906); D.acutidens (Aoki, 1965); D. altaicus Krivolutsky, 1974; D. parallelus (Hammer, 1967);Dorycranosus sp.B14. Key to adult Dorycranosus in Alberta1. Translamellar tooth as long or longer than lamellar cusps; cusps narrow, rounded distally orwith minute dens; median dorsophragmata undeveloped (Fig. B14.1A) .................................. 2- Translamellar tooth reduced to small nub; lamellae broad, cusps with strong medial tooth;median dorsophragmata developed as a fused shelf (Fig. B14.1B, Fig. B14.2) .. Dorycranosussp. 3 DEW238

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B14.1Figure B14.2, Arrow = dorsophragmata Dorycranosus sp. 3 DEW2. Translamellar tooth mucronate; insertions of long posterior median seta separated by about thelength of the seta; red-brown (Fig. B14.3A) ............................................................................. 3- Translamellar tooth notched; insertions of long posterior median seta distant, separated bymuch longer than the length of the seta; yellow-brown (Fig. B14.3B) ...................................................................................................................... Dorycranosus parallelus (Hammer, 1967)239Figure B14.3

Almanac of Alberta Oribatida 2.3 13 January 20133. Translamellar tooth about as long as lamellar cusps, cusps with well developed lateral tectum(Fig. B14.4A) .................................................................................... Dorycranosus sp. 4 DEW- Translamellar tooth longer than lamellar cusps; cusps more or less conical, with only narrowlateral tectum; dark red-brown (Fig. B14.4B, Fig. B14.5) ................................................................................................................................................. Dorycranosus acutidens (Aoki, 1965)Figure B14.4Figure B14.5240

Almanac of Alberta Oribatida 2.3 13 January 2013*Dorycranosus cf acutidens (Aoki, 1965) (RAM 99000150)Also Known As: Liacarus acutidens Aoki, 1965ABMI code/Common name: DORYACUDiagnostic characters: 715-890 long, dark red-brown; bo narrowly capitate, +/-blunt; in verylong; lamellae with narrow cusps and median translamellar tooth longer than cuspsOverview: cf – These specimens match Aoki’s description, but the difference between thisspecies and Dorycranosus sp. 4 is not great.Barcodes: MP (392)ID Check: Determination by DEW based on Aoki (1965).Similar taxa: see key.ABMI Site Records: 2007: 618, 632. 2008: 1116, 1379, UPL1. 2009: 2, 15, 1510. 2010: 151,890, 1429. 2011: OG-1331-1, OG-1275-1.DOC (1/2008): [+other] Distribution: NS; [AK, Moose Pasture Research Site 8 km W Chipman,AB (53.656667, -112.759444), Holarctic].Images: SEM (MP)Ecology:Literature: Aoki (1965); Marshall et al. (1987); Shtanchaeva (2008).*Dorycranosus parallelus (Hammer, 1967) (RAM 99000151)Also Known As: Liacarus parallelus Hammer, 1967ABMI code/Common name: DORYPARDiagnostic characters: 720 long, yellow-brown; bo narrowly capitate, +/-blunt; in very long;lamellae with narrow cusps and distally blunt, notched median translamellar tooth no longerthan cusps.Overview: see key.Barcodes:ID Check: Determination by DEW based on Hammer (1967).Similar taxa:ABMI Site Records: 2007: 1601. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: YT; [AK]Images:Ecology:Literature: Hammer (1967); Marshall et al. (1987); Shtanchaeva (2008).241

Almanac of Alberta Oribatida 2.3 13 January 2013*Dorycranosus sp. 3 DEW (RAM 99000080)Also Known As:ABMI code/Common name: DORYSP3Diagnostic characters: 710-855 long, red-brown; bo (125) with barbed, fusiform club; lamellaebroad, le inserted between dens, medial dens much larger than lateral densOverview: The single specimen collected in 2007 was damaged (sensilli missing).Barcodes:ID Check: Determination by DEW based on Aoki (1965), Hammer (1967).Similar taxa: see key.ABMI Site Records: 2007: 1601. 2008: 1354, 1355, 1618, 1635. 2009: 1510. 2010: none. 2012:1580NW.DOC (1/2008): [+other] Distribution:Images: SEM (1354)Ecology:Literature: Hammer (1967); Marshall et al. (1987); Shtanchaeva (2008).*Dorycranosus sp. 4 DEW (RAM 99000081)Also Known As:ABMI code/Common name: DORYSP4Diagnostic characters: red-brown, 715-860 long; translamellar tooth mucronate, about as longas lamellar cusps; insertions of long posterior median seta separated by about the length ofthe seta.Overview:Barcodes:ID Check: Determination by DEW based on Aoki (1965), Hammer (1967).Similar taxa:ABMI Site Records: 2007:none. 2008: 866, 867. 2009: none. 2010: none. 2011: 1126.DOC (1/2008): [+other] Distribution: NS; [AK, Moose Pasture Research Site 8 km W Chipman,AB (53.656667, -112.759444), Holarctic]Images: SEM (867)Ecology:Literature: Hammer (1967); Marshall et al. (1987); Shtanchaeva (2008).Back to Table of Contents242

Almanac of Alberta Oribatida 2.3 13 January 2013Peloppiidae Balogh, 1943Comments: The Canadian genera of Peloppiidae Balogh, 1943 are treated as members of theCeratoppiidae Kunst, 1971 in Subías (2004) and as Metrioppidae Balogh, 1943 in Marshall etal. (1987).Metrioppia helvetica Grandjean, 1931 is reported from YT, NU, and NT, but has not yet beencollected in Alberta. Subías (2004) places this mite in the Metrioppiidae.B15. Key to Genera of Peloppiidae in Alberta1. Legs monodactyl; lamellar cusps short (Fig. B15.1A) .............................................................................................................................................Parapyroppia Pérez-Ińigo & Subías 1979- Legs tridactyl; lamellar cusps various (Fig. B15.1B) ................................................................ 2Figure B15.12. Bothridial seta relatively short with spindle-shaped head; notogaster tapered posteriorly (Fig.B15.2A) ............................................................................................ Pyroppia Hammer 1955- Bothridial seta long, setiform; notogaster broadly rounded posteriorly (Fig. B15.2B) ........................................................................................................................ Ceratoppia Berlese 1908243Figure B15.2

Almanac of Alberta Oribatida 2.3 13 January 2013Ceratoppia Berlese, 1908 (ITIS 733871)Diagnostic characters: chelicerae chelate-dentate; sejugal apodeme conspicuous, straight;tridactyl; lamellar cusps long; bothridial seta long, setiform; notogaster rounded posteriorlyAlso Known As: none.Type species: Notaspis bipilis Hermann, 1804World species: 15Comments:Canadian species listed on DOC (bold = AB): Ceratoppia bipilis (Hermann, 1804); C.quadridentata (Haller, 1882); C. quadridentata arctica Hammer, 1955; C. sexpilosaWillmann, 1938; Ceratoppia sp.; C. sphaerica (L. Koch, 1879); C. spinipes (Banks, 1906)ONB16. Key to Ceratoppia in Alberta & adjacent regions1. Posterior notogastral setae long; rostrum mucronate with lateral teeth; lamellar cusps long (Fig.B16.1A) ..................................................................................................................................... 2- Posterior notogastral setae short; rostrum evenly dentate; lamellar cusps < ½ length of bases;nearly black; 700-1000 long; YT, NU, NT (Fig. B16.1B) .................................................................................................................................................. Ceratoppia sphaerica (L Koch, 1879)Figure B16.1244

Almanac of Alberta Oribatida 2.3 13 January 20132. 2 pairs of posterior notogastral setae (Fig. B16.2A).................................................................... 3- 3 pairs of posterior notogastral setae; mentum with 1 pair of setae; 650-850 long; YT, NU, NT .(Fig. B16.2B) .................................................................. Ceratoppia sexpilosa Willmann, 1958Figure B16.23. Lamellar cusps not extending beyond tip of rostrum and lateral tooth well developed to smallor absent; interlamellar seta extending beyond tip of cusps; mentum with 1 or 2 pairs of setae(Fig. B16.3A) ............................................................................................................................. 4- Lamellar cusps extending beyond tip of rostrum and lateral tooth well developed; interlamellarsetae not extending beyond tip of cusps; mentum with 1 pair of setae; 500-600 long; AB, YT,NU, NT, NB, NF (Fig. B16.3B) ............................... Ceratoppia quadridentata (Haller, 1882)Figure B16.34. Posterior setae p1, p3 relatively long; lamellae reach or pass insertion of rostral seta ............... 5- Posterior setae p1, p3 short; lamellae not reaching insertion of rostral seta Waterton Lakes..............................................................................................Ceratoppia valerieae Lindo, 2011245

Almanac of Alberta Oribatida 2.3 13 January 20135. Mentum with 1 pair of setae; genital shield with g1-4 +/- aligned (g1 and g4 somewhat lateral);margin of pedotectum I strongly toothed; light brown, 580-720 long; AB, YT, NU, NT, QC,NF (Fig. B16.4A)........................................ Ceratoppia quadridentata arctica Hammer, 1955- Mentum with 2 pairs of setae; genital shield with g1-3 +/- aligned, g4 displaced laterallymidway to g5; margin of pedotectum I weakly toothed to smooth; dark brown, 600-1100long; AB, YT, NU, NT, MB, ON, QC, NB, NS, PE, NF (Fig. B16.4B) .............................................................................................................................. Ceratoppia bipilis (Hermann, 1804)Very short posterior setae; Waterton Lakes ...............................Ceratoppia valerieae Lindo, 2011Figure B16.4Ceratoppia bipilis (Hermann, 1804) (ITIS 738240)Also Known As: Notaspis bipilis Hermann, 1804ABMI code/Common name: CERABIPDiagnostic characters: Ventral length 600-1100, dark brown; 2 pairs of setae on mentum;rostrum mucronate with a strong lateral tooth and a smooth to short serrate (2-4 teeth)margin; le (130-138) similar in length to cusp (118-145) including short to well developedlateral tooth; in (~300-320) extending well past tip of cusp; bo (188-213); ro (114-125)strongly barbed. Notogastral seta r2 (188-194) longer than p1 (110-130), other setaereduced to alveoli. Genital plate with 6 setae: g1-3 +/- aligned longitudinally near medialmargin of shield, g1 (~43) strongly barbed, somewhat lateral to g2; other setae sparselybarbed: g4 inserted near mid-shield, g5 lateral (~22), g6 posterior.Overview: This large (length 0.6-1.1 mm) dark brown mite occurs across Eastern Canada, extentis of scattered occurrence in the boreal forests of central Alberta.246

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: Determination by DEW based on Hammer (1952, 1955).Similar taxa: Larger and darker than Ceratoppia quadridentata arctica Hammer, 1955. SeeRemarks in Marshall et al. (187) for C. bipilis and Ceratoppia bipilis spinipes (Banks,1906).ABMI Site Records: 2007: 514, 543, 575, 599, 649, 857, UPL6, UPL8; 2008: 1635, FM04.2009: none. 2010: ALPAC1, ALPAC3. 2011: 451.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, MB, ON, QC, NB, NS, PE, NFImages:Ecology: Associated with xerophilous habitats and peatlands. Gravid females can carry at least12 eggs. Subfossil specimens (6150 BP) have been reported from peat in NE Russia(Krivolutsky & Sidorchuk 2003).Literature: Hammer (1952, 1955); Marshall et al. (1987); Behan-Pelletier & Bissett (1994),Lindo (2011).247

Almanac of Alberta Oribatida 2.3 13 January 2013Ceratoppia quadridentata (Haller, 1882) (ITIS 738240)Also Known As: Notaspis bipilis quadridentata Haller, 1882ABMI code/Common name: CERAQUADiagnostic characters: see key above.Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, NB, NFImages:Ecology:Literature: Aoki (1969); Marshall et al. (1987), Lindo (2011).Ceratoppia quadridentata arctica Hammer, 1955 (RAM 99000064)Also Known As:ABMI code/Common name: CERAQURDiagnostic characters: Ventral length 580-720; light brown in colour; 1 pair of setae onmentum; lamellar cusps (95-110) about as long as lamellar base, but do not pass tip ofrostrum; lateral tooth well-developed, reduced, or absent, le slightly longer than cusp (110-115) and densely barbed; rostrum mucronate and with serrate margin (5-9 teeth); in verylong (265-295), passing tips of cusps; bo long (163-200), setiform, densely barbed; ro(~113) thick, densely barbed; pedotectum I with dorsal tooth (~18) and lamella with weaklydentate distal margin; femora II-IV with strong ventral keels; notogastral seta r1 (128-155)about half again as long as p1 (88-100), other notogastral setae reduced to alveoli. Genitalplate with 6 setae: g1-4 +/- aligned longitudinally near medial margin of shield, g1 (~43)strongly barbed, somewhat lateral to g2; other setae simple: g2-4 short (~22), g5 (~25)inserted laterally, g6 posterior.Overview: This subspecies is very common, somewhat variable, and found throughout the borealforest and foothills and extending into aspen parklands. To the north of Alberta, C. q.arctica is reported across Canada and into Alaska. Ceratoppia quadridentata (Haller, 1882)is a variable species and Subías (2004) may be correct in treating C. q. arctica as a juniorsynonym.Barcodes: 345 (658, 658), 413 (658, 658)ID Check: Determination by DEW based on Hammer (1952, 1955).Similar taxa: C. quadridentata has interlamellar setae that extend beyond the tip of the rostrum248

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: 2007: 216, 330, 331, 358, 358, 359, 360, 388, 390, 484, 512, 514, 543, 576,584, 585, 600, 617, 618, 618, 631, 664, 665, 791, 792, 857, 1068, 1069, 1102, 1133, 1134,BOG5, BOG6, BOG7, UPL4, UPL5, UPL6, UPL7. 2008: 343, 344, 345, 374, 375, 413,414, 443, 444, 472, 720, 751, 752, 867, 899, 932, 933, 975, 976, 1041, 1043, 1379, BOG1,BOG3, FM04, FM06, PRO3, PRO4, SL10, SL13, SL18, SL21, UPL1, UPL2, UPL3. 2009:1, 2, 3, 14, 15, 32, 33, 499, 507, 508, 528, 528, 530, 537, 538, 539, 559, 569, 697, 728, 759,761, 881, 882, 883, 883, 916, 1529. 2010: 323, 324, 325, 352, 353, 354, 383, 384, 877, 909,910, 941, 942, 1036, 1037, 1169, 1170, 1171, 1175, 1176, 1208, 1209, 1237, 1325, 1352,ALPAC-1, ALPAC-2, ALPAC-4, ALPAC-5, ALPAC-8, ALPAC-9, ALPAC-10, ALPAC-11, ALPAC-12, ALPAC-13, ALPAC-16, ALPAC-16, OG-910-2, OG-943-1, OG-972-1,OG-1005-1, OG-1325-1, OG-1352-1. 2011: 64, 65, 91, 93, 121, 122, 302, 391, 422, 451,452, 481, 482, 483, 672, 963, 964, 968, 970, 995, 1002, 1018, 1071, 1072, 1104, 1126,1136, 1137, 1138, 1238, A602-1, A608-3, A635-1, A637-1, A692-1, A7, A702.OS, A757-1, A761-3, A761-4, OG-1212-1.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, QC, NF; [Moose Pasture Research Site 8km W Chipman, AB (53.656667, -112.759444); Lindo & Visser (2004)]Images: SEM (MP, Meanook)Ecology: This mite is associated with xerophilous sites and peatlands. Gut boli contain fungalhyphae and spores, fern spores, dark granular material, and amorphous material. Bisexual:gravid females carry up to 6 eggs.Literature: Hammer (1952, 1955); Marshall et al. (1987); Behan-Pelletier & Bissett (1994);Lindo & Visser (2004), Lindo (2011).Ceratoppia valerieae Lindo, 2011 (ITIS xxxxxAlso Known As: Ceratoppia sp. 4 ZLABMI code/Common name: CERAVALDiagnostic characters: 540-670 long, 2 pairs of hypostomal setae (h1-2) on mentum; p1, p3 veryshort; lamellae short, not reaching insertion of rostral setae; ~5 pairs lateral rostral teeth andmedial tooth wide.Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2011: none. 2012: none.DOC (1/2008): [+other] Distribution: [AB, BC, WA, OR]Images:Ecology: Primarily arboreal, relatively rare in forest floor samples. A west coast-interior BCspecies that reaches its easternmost distribution in Waterton Lakes, AB.Literature: Aoki (1969); Marshall et al. (1987), Lindo (2011).249

Almanac of Alberta Oribatida 2.3 13 January 2013Parapyroppia Pérez-Inigo & Subias 1979 (ITIS 733880)Diagnostic characters: monodactyl; chelicerae chelate-dentate; sejugal apodeme conspicuous,straight; lamellar cusps shortAlso Known As: none.Type species: Parapyroppia monodactylea Pérez-InWorld species: 3Comments:Canadian species listed on DOC (bold = AB): Parapyroppia lamellata (Ewing, 1909);Parapyroppia sp.***Parapyroppia sp. 1 DEW (RAM 99000041)Also Known As:ABMI code/Common name: PARAPSP1Diagnostic characters: 380 long; yellow brown; monodactyl; lamellae very long (110), cuspsminute; sejugal apodeme present; in (55-60) barbed, blunt, longer than barbed, acuminate le(35-40), about as long as elongate, fusiform bo (head ~40% length), ro~le; notogastral setaevery short, fine.Overview:Barcodes:ID Check: Determination by DEW based on Balogh & Balogh (2002); Norton & Behan-Pelletier(unpublished).Similar taxa:ABMI Site Records: 2007: 1133. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [Parapyroppia lamellata (Ewing, 1909) reported from BCby Winchester et al. 1996-2007; MO]Images: SEM (1133R)Ecology:Literature: Marshall et al. (1987).Pyroppia Hammer, 1955 (ITIS 733883)Diagnostic characters: chelicerae chelate-dentate; sejugal apodeme conspicuous, straight;tridactyl; bo with barbed, spindle-shaped head; lamellae narrow; posterior of notogasternarrows.Also Known As: none.250

Almanac of Alberta Oribatida 2.3 13 January 2013Type species: Pyroppia lanceolata Hammer, 1955World species: 8Comments:Canadian species listed on DOC (bold = AB): Pyroppia lanceolata Hammer, 1955; Pyroppia sp.NF***Pyroppia sp. 1 DEW (RAM 99000051)Also Known As:ABMI code/Common name: PYROLAN?Diagnostic characters: ventral length 400-420, yellow brown; tridactyl; in very long (170-180),much longer than simple, ridge-like lamellae with tiny cusps and tooth-like dorsalprojection; le (50-55) barbed; rostrum notched, with median tooth; bo (90-100) withnarrow, spindle-shaped head (1/3 rd length); notogastral setae fine, short (

Almanac of Alberta Oribatida 2.3 13 January 2013[P. pacifica Norton, 1984; P. orbiculata (Aoki & Ohnishi, 1974)]Figure B17.12. Lamellae well separated, cusps broad and lamellar setae inserted ventrally or laterally; epimereI with 3 pairs of setae (Fig. B17.2A) ......................................................................................... 4- Lamellae with translamella or fused medially, cusps narrow with lamellar seta inserted distally;epimere I with 4 setae (Fig. B17.2B)......................................................................................... 3Figure B17.2252

Almanac of Alberta Oribatida 2.3 13 January 20133. Lamellae joined by translamella, cusps separated (Fig. B17.3A) ........ Tenulialoides Woolley &Higgins, 1966[T. fusiformis Aoki, 1969; T. medialis Woolley & Higgins, 1966; T. medialis Woolley & Higgins,1966: T. translamellatus (Aoki & Fujikawa, 1969)]- Lamellae fused at base of cusps, cusps close to midline (Fig. B17.3B) ........................................................................................................................................... Hafenrefferia Oudemans, 1906[H. gilvipes (CL Koch, 1839); H. acuta Aoki, 1966]Figure B17.34. Lamellar cusps usually well developed; scapular process relatively long, typically passinginsertion of lamellar cusps, and with anteromedial serrations (Fig. B17.4A) ............................................................................................................................................. Tenuliala Ewing, 1913[T. crenulata Woolley & Higgins, 1966, T. kurti Woolley & Higgins, 1955; T. nuda Ewing,1913]- Lamellar cusps short; scapular process relatively short and without anteromedial serrations(Fig. B17.4B) .................................................................................... Hafenferrefia Jacot, 1939253Figure B17.4Hafenferrefia Jacot, 1939 (ITIS 733898)Diagnostic characters: > 0.7 mm in length, lamellae well developed and with distinct cusps.humeral (scapular) process of notogaster short, extending to or slightly beyondanteromedial notogastral margin; without anteromedial serration

Almanac of Alberta Oribatida 2.3 13 January 2013Also Known As: Hafenrefferiella Sellnick, 1952 (also see Hafenrefferia Oudemans, 1906)Type species: Galumna nitidula Banks, 1906World species: 5Comments:Canadian species listed on DOC (bold = AB): Hafenferrefia nitidula (Banks, 1906);Hafenferrefia sp.B18. Key to species of Hafenferrefia in Alberta1. Lamellar cusps well developed (~80 long), acute; scapular process long; ventral length 1000........................................................................................................... Hafenferrefia sp. 2 DEW- Lamellar cusps short; scapular process short; ventral length

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI code/Common name: HAFESP2Diagnostic characters: Ventral length 1.0 mm; lamellar cusps acute, ~80 long; lamellae broadand without translamella, each lamella wider at base than interlamellar space, lateralmargins of lamellae tilted up, lamellar cusps with sharp distal tooth; humeral projectionslonger, extend halfway to tips of lamellae, terminate in a long narrow point, medial marginstraight, lateral margin curved like the outline of a heart, humeral projections notchedaround bothridium and first leg; rostrum tip rounded with two small lateral teethOverview:Barcodes:ID Check: Determination by DEW based on Norton (1983).Similar taxa: Hafenferrefia nevesi (Sellnick, 1952); Hafenferrefia hyrcanica (Krivolutsky);Hafenferrefia nitidula (Banks, 1906)ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 1233.DOC (1/2008): [+other] Distribution: Hafenferrefia sp. reported from AB, QCImages:Ecology:Literature: Aoki & Ohnishi (1974); Norton (1983); Marshall et al. (1987).Back to Table of Contents*Tenuiala Ewing, 1913 (ITIS xxxxxxxx)Diagnostic characters:Also Known As:Type species: Tenuliala nuda Ewing, 1913World species: 3Comments: Tenuiala crenulata Woolley & Higgins, 1966 (Lebanon); Tenuiala kurti Woolley &Higgins, 1955Canadian species listed on DOC (bold = AB): Tenuliala sp.*Tenuliala sp. 1 DEW (RAM xxxx)Also Known As:ABMI code/Common name: TENUSP1Diagnostic characters:Overview:Barcodes: SL12 (658 x 2)ID Check: Determination by DEW based on Norton (1983).255

Almanac of Alberta Oribatida 2.3 13 January 2013Similar taxa: HafenferrefiaABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: 1201. 2011: none.DOC (1/2008): [+other] Distribution: Tenuliala sp. reported from YT, QC, NSImages:Ecology:Literature: Marshall et al. (1987).Back to Table of ContentsCarabodoidea Koch, 1937 (ITIS 733370)(Back to Key to Brachypylina)Carabodidae Koch, 1837 (ITIS 733496)Carabodes Koch, 1835 (ITIS 734209)Diagnostic characters: pteromorphs and porose areas absent; lamellar ridges and dorsosejugalfurrow present; heavily sclerotized strongly ornamented, brown to blackAlso Known As: Neocepheus Willmann, 1936; Carabodes (Carabodes) (ITIS 734791)Type species: Carabodes coriaceus Koch, 1835World species: 128 (28 spp. in North America).Comments: Thanks to the works of Reeves and the review of Reeves & Behan-Pelletier (1998),most species of Carabodes encountered in Canada can be identified, although the mites aregenerally very dark and brittle and make poor slides. Immature stages burrow in fungalmaterial, especially decaying basidiocarps.Canadian species listed on DOC (bold = AB): Carabodes brevis Banks, 1896; C. chandleriReeves, 1992; C. cochleaformis Reeves, 1990; C. colorado Reeves & Behan-Pelletier,1998; C. dickinsoni Reeves & Behan-Pelletier, 1998; C. erectus Reeves, 1992; C.granulatus Banks, 1895; C. higginsi Reeves, 1988; C. hoh Reeves & Behan-Pelletier, 1998;C. labyrinthicus (Michael, 1879); C. niger Banks, 1895; C. polyporetes Reeves, 1991; C.radiatus Berlese, 1916; C. rugosior Berlese , 1916; Carabodes sp.; C. willmanni Bernini,1975; C. wonalancetanus Reeves, 1989.B19. Key to adult Carabodes in Alberta(modified from Reeves & Behan-Pelletier 1998)1. Central notogaster ornamented with tuberculate ridges (Fig. B19.1A) ....................................... 2- Central notogaster foveolate (Fig. B19.1B) ................................................................................. 3256

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B19.12. Body length >0.700 mm; notogastral setae narrowly clavate (Fig. B19.2A) ................................................................................................................. Carabodes wonalancetanus Reeves, 1989- Body length

Almanac of Alberta Oribatida 2.3 13 January 20133. Notogastral foveae oval; interlamellar setae spiniform (Fig. B19.3A) ....................................... 4- Notogastral foveae with irregular margins, often flower-like (rosettiform); interlamellar setaeswollen and barbed distally (penicilliform) directed anteriorly; interlamellar area broad;notogastral setae penicilliform; light brown, 430-500 long (Fig. B19.3B) ............................................................................................................................ Carabodes granulatus Banks, 1895Figure B19.34. Interlamellar setae acuminate, directed anteriorly; genital setae short; notogastral setae pencilshaped(penicilliform); 525-680 long (Fig. B19.4A) ............................................................................................................................... Carabodes colorado Reeves & Behan-Pelletier, 1998- Interlamellar setae acuminate, directed medially; genital setae very long; notogastral setae clubshaped;480-610 long (Fig. B19.4B) ............................... Carabodes polyporetes Reeves, 1991258

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B19.4Carabodes colorado Reeves & Behan-Pelletier, 1998Also Known As:ABMI code/Common name: CARACOL; Colorado Fungus-borerDiagnostic characters: length 525-680; foveolate-reticulate; dorsosejugal furrow narrow slit; ro,le arched anteriorly; bo clavate; circumgastric depression present; notogastral setaepenicilliform to narrowly clavate; genital setae (4 pairs) shortOverview: Reported from montane areas in SW AB.Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB [Kananaskis, Waterton Lakes], BC; [NM, CO, ID,WY]Images:Ecology: Associated with polypores, lichens, moss, rotten wood, litter, and bear dung on moss.Literature: Reeves & Behan-Pelletier (1998).259

Almanac of Alberta Oribatida 2.3 13 January 2013*Carabodes granulatus Banks, 1895 (ITIS 740817)Also Known As:ABMI code/Common name: CARAGRA; Granulate Fungus BorerDiagnostic characters: length 430-500, narrowly oval, brown; prodorsal and notogastralintegument with rosettiform foveae; interlamellar and dorsal setae penicilliform (narrowlyclavate with distal spinules); bo clubbed, directed laterally; 4 pairs genital setaeOverview:Barcodes: 444 (0, 386, 633)ID Check: Determination by DEW based on image and key in Reeves & Behan-Pelletier (1998).Similar taxa: Often co-occurs with the similarly sized C. labyrinthicus.ABMI Site Records: 2007: 330, 331, 360, 514, 515, 576, 600, 631, BOG7. 2008: 444, 688, 690,BOG1, FM07. 2009: 1, 2, 3, 32, 33, 497, 508, 530. 2010: 353, 892. 2011: 63, 65, 93, 302,452, 672, A637-2, A702.OS, A761-1, A761-4.DOC (1/2008): [+other] Distribution: ON, NB, NS, NF; [widely distributed in USA]Images: SEM (360)Ecology: Parthenogenetic (thelytokous): gravid females carry up to 2 large eggs.Literature: Marshall et al. (1987); Reeves & Behan-Pelletier (1998).*Carabodes labyrinthicus (Michael, 1879) (ITIS 740826)Also Known As:ABMI code/Common name: CARALAB; Labyrinthine Fungus BorerDiagnostic characters: length 440-540, oval dark brown to black; dorsum with tuberclesforming irregular ridges, setae short, spiniform, posteromarginal setae erect, +/- at rightangles to body, c2 inserted near shoulder; bo clavate, directed laterally; 4 pairs genital setaeOverview: Adults are highly variable in size. Originally described as Tegeocranus labyrinthicusMichael.Barcodes: 374 (0, 658, 658); 444 (0, 440, 562, 653, 658, 658)ID Check: Determination by DEW based on key and image in Reeves & Behan-Pelletier (1998).Similar taxa: Often co-occurs with the similarly sized C. granulatus.ABMI Site Records: 2007: 276, 330, 331, 358, 360, 388, 389, 515, 545, 574, 576, 585, 601, 631,663, 791, 792, 823, 1070, BOG5, BOG6, BOG7, UPL5. 2008: 374, 413, 414, 443, 444,472, 688, 689, 690, 719, 721, 751, 752, BOG2, BOG3, FM07, SL21, UPL1. 2009: 1, 2, 3,32, 33, 497, 498, 506, 508, 529, 530, 537, 559, 568, 570, 697, 728, 759, 760. 2010: 323,325, 352, 353, 354, 383, 384, 892, OG-910-2. 2011: 63, 64, 65, 93, 122, 242, 272, 302, 391,422, 452, 481, 483, 672, 1218, A635-1, A637-1, A702.OS, A761-4.DOC (1/2008): [+other] Distribution: YT, NU, NT, BC, MB, ON, NB, NS, PE, NF; [AK, easternUSA, Holarctic]260

Almanac of Alberta Oribatida 2.3 13 January 2013Images: SEM (360)Ecology: Schneider (2005) placed this mite in the phycophage/fungivore feeding guild (i.e. feedson lichens and algae). Hingley (1971) reported C. labyrinthicus rarely from the arborealfruiting bodies of the fungus Daldinia concentrica in the United Kingdom, but did not findthe fungus in their gut contents. Wunderle (1992) found this mite commonly on tree barkand Sobel et al. (2008) found them to be common and sometimes abundant in the canopy ofbeech, oak, larch and spruce in a mixed temperate forest in Switzerland. Specimens havebeen found in the feathers of birds in Russia, a possible means of long distance dispersal(see Krivolutsky & Lebedeva 2004).Literature: Hingley (1971); Marshall et al. (1987); Reeves & Behan-Pelletier (1998);Krivolutsky & Lebedeva (2004).*Carabodes polyporetes Reeves, 1991 (ITIS 740842)Also Known As:ABMI code/Common name: CARAPOL; Polypore BorerDiagnostic characters: length 480-610, dark brown; notogaster and prodorsum foveolate; dorsalsetae narrowly clavate (spoon-like, with spicules distally); in spiniform, directed medially;posteromarginal setae smooth, closely bent to surface; bo clavate, directed laterally andposteriorly; anterior margin of dorsosejugal depression straight; setae u of tarsus I scalelike;genital setae (4 pairs) very longOverview: Posteromarginal setae with minute bumps or barbs (Site 357).Barcodes:261

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Reeves (1991) and Reeves & Behan-Pelletier(1998); MP specimen checked by VBP.Similar taxa: Carabodes cochleaformis Reeves, 1990 from eastern North America has tuberclesin the interlamellar region and may exhibit genital plate neotrichy (4-6 pairs of setae).ABMI Site Records: 2007: 359, 586, 618, 664, 857. 2008: UPL2, UPL3. 2009: none. 2010: 890,ALPAC-11, ALPAC-12, ALPAC-13. 2011: 1126, A761-3, OG-ABMI-1275-1.DOC (1/2008): [+other] Distribution: MB, ON, QC, NB, NS, PE, NF; [Moose Pasture ResearchSite 8 km W Chipman, AB (53.656667, -112.759444); eastern USA]Images: SEM (MP)Ecology: Associated with polypores and conifer litter. Gut boli include dematiaceous fungi andlight coloured material of unknown origin. Gravid females carry up to 4 eggs.Literature: Reeves (1991); Reeves & Behan-Pelletier (1998).Carabodes wonalancetanus Reeves, 1989 (ITIS 740861)Also Known As: ABMI code/Common name: CARAWOLDiagnostic characters: 730-780 long, black; notogaster with densely packed tubercles; c2 nearshoulder; interlamellar and notogastral setae narrowly clubbed; bo clubbed, directedlaterallyOverview:Barcodes:ID Check: Determination by DEW based on Reeves (1989) and Reeves & Behan-Pelletier(1998).Similar taxa:ABMI Site Records: 2007: 543. 2008: 373. 2009: 568. 2010: 1207, ALPAC-16. 2011: none.DOC (1/2008): [+other] Distribution: AB, BC, ON, QC, NB, NS, NF; [NH, VT]Images:Ecology: Associated with conifer and deciduous litter and logs, polypores, moss, fungi.Literature: Reeves (1990); Reeves & Behan-Pelletier (1998).Back to Table of Contents262Oppioidea Sellnick, 1937 (ITIS 733367)Comments: The DOC lists only 8 species records in Alberta for this highly diverse superfamily,probably because the North American fauna is poorly known. Almost any collection of litteris likely to have oppioid species, but many are minute. Only species with a body length of 0.3mm are covered here. The majority of the species in this superfamily are

Almanac of Alberta Oribatida 2.3 13 January 2013(Back to Key to Brachypylina)B20. Key to families and genera of Oppioidea (adults > 0.3 mm in length) Alberta1. Genital and anal plates of normal size and well separated (Fig. B20.1A) .................................. 2- Genital and anal plates enlarged and abutting (Fig. B20.1B) .... Thyrisomidae (see generic key)Figure B20.12. Chelicerae chelate-dentate, rutella normally developed (Fig. B20.2A) ...................................... 3- Chelicerae edentate and attenuate, rutella modified into supports for ‘suctorial’ mouthparts(Fig. B20.2B) ....................................................................................................... SuctobelbidaeFigure B20.2263

Almanac of Alberta Oribatida 2.3 13 January 20133. Prodorsum with well developed costulae; notogaster with well developed anterior tubercles(cristae); bothrial seta various (Fig. B20.3A) ............................................................................ 4- Prodorsum without costulae; notogaster without cristae; bothridial seta with elongate fusiformhead, lanceolate, or globose (Fig. B20.3B) .............. Oppiidae (Aeroppia, Multioppia, Oppia)Figure B20.34. Rostrum entire or with median tooth; tibia I apophysis small, not projecting over tarsus (Fig.B20.4A) ............................................................................... Oppiidae (Oppiella, Moritzoppia)- Rostrum with medial notch; tibia I apophysis well developed and projecting over tarsus (Fig.B20.4B)........................................................................... Autognetidae, Autogneta Hull, 1916264Figure B20.4

Almanac of Alberta Oribatida 2.3 13 January 2013Autognetidae Grandjean, 1960 (ITIS 733474)Autogneta Hull, 1916 (ITIS 733976)Diagnostic characters: rostrum with straight, deep, medial incision; median, parallel costulaepresent; humeral enantiophysis present; tibia I with large dorsodistal tubercle overhangingtarsus I and bearing solenidion; sensillus dilated distally (may intergrade withConchogneta)Also Known As: see also Rhaphigneta Grandjean, 1960; Conchogneta Grandjean, 1963Type species: Notaspis longilamellata Michael, 1885World species: 8Comments: Autogneta (Autogneta) Hull, 1916 (ITIS 734708)Canadian species listed on DOC (bold = AB): Autogneta longilamellata (Michael, 1885);Autogneta sp.B21. Key to adults of species of Autogneta in Alberta1. Costulae thick, crenulate with rounded cusp; sensillar club fusiform, longer than stalk; ventrallength 290-320 (Fig. B21.1A) ........................... Autogneta cf longilamellata (Michael, 1885)- Costulae slender, ending in small, ventral strut; sensillar club more globose, spiculate; ventrallength 310-370 (Fig. B21.1B)................................................................. Autogneta sp. 2 DEWFigure B21.1265

Almanac of Alberta Oribatida 2.3 13 January 2013*Autogneta cf longilamellata (Michael, 1885) (ITIS 738925)Also Known As: Notaspis longilamellata Michael, 1885ABMI code/Common name: AUTOLONDiagnostic characters: length 290-320; bo fusiform and spiculate club; costulae run most oflength of prodorsum, swollen distally; bothridial tubercle irregular; 6 pairs genital setae;legs I without strong tubercles or distinct porose areas; notogastral setae fine.Overview: A small mite: most speare somewhat different (more irregular and thicker at the tips) than shown by Grandjean(1963) and it is possible that this is a different species.Barcodes:ID Check: Determination by DEW based on Grandjean (1963); Gilyarov & Krivolutsky (1975).Similar taxa: The DOC reports Conchogneta traegardhi (Forsslund, 1947) from QC, NF.ABMI Site Records: 2007: 1133, 1135. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: YT, NU, NT, ON, QC, NB, NF; [Holarctic]Images: SEM (1133)Ecology: Gut contents include fungal hyphae, some spores, and unidentified granular material.Hingley (1971) reported A. longilamellata from the arboreal fruiting bodies of the fungusDaldinia concentrica in the United Kingdom, but did not report on their feeding behaviour.Specimens have been found in the feathers of birds in Russia, a possible means of longdistance dispersal (see Krivolutsky & Lebedeva 2004).Literature: Grandjean (1963); Hingley (1971); Marshall et al. (1987); Krivolutsky & Lebedeva(2004).*Autogneta sp. 2 DEW (RAM 99000077)Also Known As:ABMI code/Common name: AUTOSP2Diagnostic characters: length 310-350; bo globose, spiculate club; costulae run most of lengthof prodorsum and have a small distal dens; lateral margins of prodorsum stronglytuberculate; bothridial tubercle large, subtriangular, microtuberculate; femora I-IItuberculate distally and with strongly developed porose areas basally; notogastral setaethickened.Overview: This mite keys to the last couplet in Gilyarov & Krivolutsky (1975), but Conchogneta(not Autogneta) tragardhi (Forsslund, 1947) has a long, narrow sensillus and this mitediffers from A. longilamellata in having thicker, barbed notogastral setae and finer, moreclosely set costulae.Barcodes:ID Check: Determination by DEW based on Grandjean (1963); Gilyarov & Krivolutsky (1975).Similar taxa: Autogneta longilamellata (Michael, 1885)266

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: 2007: none. 2008: 343. 2009: none. 2010: OG1353-1. 2011: A-637-1.DOC (1/2008): [+other] Distribution: Autogneta sp. reported from NB, NSImages:Ecology:Literature: Marshall et al. (1987).Back to Table of ContentsOppiidae Sellnick, 1937 (ITIS 734017) (also see Part II)Diagnostic characters: rostrum entire or with median tooth, with or without lateral incisions;costulae present or absent; humeral enantiophysis present or absent; tibia I without largedorsodistal tubercle.Overview: This is a highly diverse family with many similar genera, but most species have bodylengths under 0.3 mm (see Part II) and only a few exceed the size cut-off. Species of Oppiaand Aeroppia may be of medium size.Genera of Oppiidae in Alberta with species >0.3 mm body lengthLength Notogaster Costulae Sensillus Crista in tubercleabsentabsentAeroppia

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B22.12. Anterior margin of notogaster truncate, flattened medially; crista present or absent; sensillusacuminate-ciliate; genital plates with 4-6 pairs of setae ............................................................ 3- Anterior margin of notogaster lobe-like, rounded medially; crista absent; sensillus fusiform;genital plates with 4 pairs of setae ..................................................................................................................................... Moritzoppia Subías & Rodriguez 1988 (= Moritziella Balogh 1983)3. Crista and median shelf forming enantiophysis with interlamellar and bothridial tubercles;rostrum without teeth (Fig. B22.2A) ........................................ Oppiella (Oppiella) Jacot 1937- Crista not formed, notogastral tectum without strong tubercles; complex enantiophysis formedfrom broad interlamellar processes and median bifurcate tubercle; rostrum with strongmedian and weaker lateral teeth (Fig. B22.2B) ............... Lauroppia Subías & Mínguez, 1986268

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B22.24. Sensillus setiform to fusiform or globose but without long processes on margin; prodorsumwithout costular or translamellar lines; larger mites >450 long (Fig. B22.3A) ........................ 5- Sensillus radiate, pectinate or ciliate; prodorsum with faint costular and/or translamellar lines(Fig. B22.3B) ............................................................................................................................. 6Figure B22.35. Sensillus elongate, slightly enlarged distally; body length 600 (Fig. B22.4B) ................ Aeroppia Balogh, 1965269

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B22.46. Notogaster with 9-10 pairs setae; c2 minute or present only as alveoli; interlamellar regionwithout 2-rows of sigillae; body

Almanac of Alberta Oribatida 2.3 13 January 2013Overview: An unusually large oppiid. The described North American species have 5 rather than6 pairs of genital setae. This may be a new species.Barcodes:ID Check: Determination by DEW Balogh & Balogh (2002); Norton & Behan-Pelletier(unpublished).Similar taxa: Aeroppia magnipilosa (Ewing, 1909) (=Aeroppia columbiana Hammer, 1961) islarger (725) and has longer posterior setae. Aeroppia floridana (Banks, 1896) from the SEUSA cannot be recognized from its description.ABMI Site Records: 2007: none. 2008: 1223. 2009: none. 2010: none. 2011: 1218, 1334, 1438,1439, OG-1054-1, OG-1122-1, OG-1338-1.DOC (1/2008): [+other] Distribution:Images:Ecology:Literature: Woolley (1957); Marshall et al. (1987).Lauroppia Subías & Mínguez 1986Diagnostic characters:Also Known As:Type species: Damaeosona fallax Paoli, 1908World species:Comments:Canadian species listed on DOC (bold = AB): Lauroppia maritima (Willmann, 1929) YT NU NTNF; Lauroppia translamellata (Willmann, 1923) YT NU NT ON QC NFLauroppia sp. B DEWAlso Known As: Oppiella sp. B DEWABMI code/Common name: OPPISPBDiagnostic characters: Female ventral length 315. Prodorsum with well developed costulae,notogaster with rectangular crista without lateral spurs. Prodorsum microtuberculatebetween bothridium and leg bases and with cluster of large sigillae laterad le; sensillus(~45) elongate-spoonshaped, ciliate from rounded tip to below head, inserted in notch inbothridial rim; costula with basal spur and broad ridges encompassing in (simple, 23) andextending past le (simple, ~15); ro (~27) tapering and barded dorsally; rostrum withshallow notch? (split on specimen); ex (~27) with a few barbs. Crista without lateral spur,posterior ridge short, running only to base of c2; 10 pairs of notogastral setae: c2 (~35)sparsely barbed, subequal to simple la (32), other setae simple (~20-27). Genital plates with271

Almanac of Alberta Oribatida 2.3 13 January 20134 pairs of setae and alveoli of g5 (broken off?); apo paranal; epimeron IV faintly reticulate,tuberculate along posterior margin; epimeron I microtuberculate anteriorly.Overview:Barcodes:ID Check: Determination by DEW Balogh & Balogh (2002).Similar taxa:ABMI Site Records: 2007: none. 2008: (1008 residuals). 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution:Images:Ecology:Literature: Marshall et al. (1987).Moritzoppia Subías & Rodríguez, 1988 (ITIS 734084)Diagnostic characters: 4 pairs genital setae; cristae absentAlso Known As:Type species: Oppia keilbachi Moritz, 1969World species: ~18Comments:Canadian species listed on DOC (bold = AB): Moritzoppia clavigera (Hammer, 1952);Moritzoppia sp. NF***Moritzoppia sp. 1 DEW (RAM 99000091)Also Known As:ABMI code/Common name: MORISP1Diagnostic characters: 305-310 long; prodorsum punctate, ro (26) barbed, le (15) simple at tipof costulae, in (40) in basal costular pocket; bo (50) with swollen (spoon), acuminate headcovered in minute barbs; notogastral setae long, fine, c2 (40), others subequal, lm, la (40); 4pairs genital setae; iad paranalOverview: Moritzoppia clavigera (Hammer, 1952) is reported on the DOC and is fairly common,but this larger species may be new.Barcodes:ID Check: Determination by DEW based on Colloff & Syed (1991).Similar taxa: see Moritzoppia clavigera (Hammer, 1952) under incidental species.ABMI Site Records: 2007: none. 2008: 412. 2009: none. 2010: none. 2011: none.272

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: Moritzoppia sp. reported from NFImages:Ecology:Literature: Marshall et al. (1987); Colloff & Seyd (1991); Weigmann (2006).Multioppia Balogh, 1965 (Hammer, 1961) (ITIS 734034)Diagnostic characters: costulae and cristae absent; 12 pairs of notogastral setae present (c2 maybe smaller than others)Also Known As: Oppia CL Koch, 1836Type species: Multioppia radiata Hammer, 1961World species: 43Comments:Canadian species listed on DOC (bold = AB): Multioppia carolinae (Jacot, 1938); Multioppia sp.*Multioppia sp. 1 DEW (RAM 99000034)Also Known As:ABMI code/Common name: MULTSP1Diagnostic characters: 350-400 long; costulae and cristae absent; bo radiate, with 5 long (10)distal spines and short basal barbs, bothridial rim truncate posteriorly with rounded, +/-medially directed tubercle; in (26) distinctly barbed; le (~40) barbed; ro (~40) stronglybarbed, curved mediad, and bracketing recessed rostral tooth; 12 pairs long (40-50)notogastral setae; ventral plate with spine anterior to insertion of leg IV; trochanter III witha basal tooth; 5 pairs of genital setae.Overview: Subías (2008) lists 43 species in the genus including the cosmopolitan M. australisHammer, 1962 and M. wilsoni Aoki, 1964 and a number of species from East Asia.Specimen from UPL1 SE 8b is larger (390) than others (350-360) and has more than onetooth on trochanter III.Barcodes:ID Check: Determination by DEW based on Balogh & Balogh (2002).Similar taxa:ABMI Site Records: 2007: 601. 2008: 751, 975, 976, 1008, UPL1. 2009: none. 2010: 1202.2011: 970, 1073.DOC (1/2008): [+other] Distribution: Multioppia sp. reported from NS; [Moose Pasture ResearchSite 8 km W Chipman, AB]Images: SEM (MP)Ecology: Gut contents consist primarily of dark fungal hyphae.273

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Marshall et al. (1987).Oppia CL Koch, 1836 (ITIS 734017)Diagnostic characters: crista and costulae absent; 5 pairs genital setae; bo elongate fusiformAlso Known As:Type species: Oppia nitens CL Koch, 1835World species: varies with generic definitions; Marshall et al. (1987) list 8 nominate species forNorth America.Comments:Canadian species listed on DOC (bold = AB): Oppia minuta (Banks, 1895), Oppia nitens C. L.Koch, 1835, Oppia sp.*Oppia sp. 1 DEW (RAM 99000093)Also Known As:ABMI code/Common name: OPPISP1Diagnostic characters: 485 long, yellow brown; notogaster with 9 pairs of setae (7 pairs longand barbed, posterior 2 pairs shorter and smooth) and small anterior lateral tubercle; inshort, < le, bo long (80-90) slightly clubbed and spiculate distally; trochanter III with dorsalspine and spine between legs III-IV.Overview: A crista is absent on this mite, but the small tubercles on the notogaster may representremnants and some authors might put this mite in a different genus.Barcodes:ID Check: Determination by DEW based on Balogh & Balogh (2002); Norton & Behan-Pelletier(unpublished).Similar taxa:ABMI Site Records: 2007: none. 2008: 1085. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: Oppia sp. reported from MB, ON, QC, NB, NS, PE;Images:Ecology:Literature: Marshall et al. (1987).Oppiella Jacot, 1937 (ITIS 734087)Diagnostic characters: crista and costulae present; 5 pairs genital setae.Also Known As:Type species: Eremaeus novus Oudemans, 1902274

Almanac of Alberta Oribatida 2.3 13 January 2013World species: varies with generic definitions; Marshall et al. (1987) list 10 nominate species forNorth America.Comments:Canadian species listed on DOC (bold = AB): Oppiella nova (Oudemans, 1902) (see Part II);Oppiella sp.; O. washburni (Hammer, 1952)B23. Key to adults of species of Oppiella & Lauroppia >300 long in Alberta1. Sensillus fusiform to spindle-shaped with acuminate tip; crista with strong lateral spur meetingposterior tubercle on bothridium and with posterior ridge running towards la; costula median,without ridges encompassing in ................................................................................................ 2- Sensillus ciliate, with rounded tip; crista without spur, posterior ridge short, running only tobase of c2; costula with broad ridges encompassing in; rostrum with large median and 2 pairsof much smaller teeth; ventral length 315 ............................................. Lauroppia sp. B DEW2. Sensillus spindle-shaped with long barbs along one margin; costulae with median patch oftubercles; ventral length >300 ................................................................................................... 3- Sensillus fusiform and with short, sparse barbs; costulae without median patch of tubercles;ventral length ~300 .....................................................................................Oppiella sp. 2 DEW3. Female ventral length 375; barbs on sensillus short (~2) ...........................Oppiella sp. 3 DEWOppiella cf washburni (Hammer, 1952) (RAM 99000066) = Oppiella nova (sensu Subías 2004)Also Known As:ABMI code/Common name: OPPIWASDiagnostic characters: Female ventral length 310-350. Prodorsum with well developed costulae(~45-55) and crista with lateral spurs. Prodorsum microtuberculate between bothridium andleg bases and with cluster of large sigillae laterad le; sensillus (~55-75) spindle-shaped andwith numerous short (mostly 3-4) spines, bothridial notch forming large tubercle that meetssingle triangular sejugal tubercle; costula with basal spur, patch of tubercles in middle,lacking lateral ridge encompassing in (with a few barbs, ~35-45), and extending past le(simple, ~20-25); rostrum with rounded, nose-like median knob (i.e. notched laterally), ro(30) barbed, directed forward; ex (~35) with a few barbs. Crista with lateral spur, posteriorridge running ~1/2 way to base of la; 10 pairs of notogastral setae simple to sparselybarbed: c2 (~35-40) curves posteriad; la (30-35) directed laterally; lm (20-30), lp (15-20).Genital plates with 5 pairs of setae; apo paranal; epimeron IV faintly reticulate andtuberculate on posterior margin and lateral corners; epimeron I with median cluster ofreticula.Overview:Barcodes:275

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Hammer (1952). 330 NE checked by VBP April2008. Hammer type = 0.312 mm long; Subías (2004) synonymised O. washburni with O.nova; Oppiella nova = 220-369 long based on rearing experiment by Fujikawa (1999)Similar taxa: Dissorhina ornata (Oudemans, 1900) has similarly notched rostrum, but lacks acrista.ABMI Site Records: 2007: 330; 599. 2008: 901. 2009: 1, 569, 882. 2010: 1175. 2011: 608,1437.DOC (1/2008): [+other] Distribution: AB, NU, NT, MB, NS, NF; [AK]Images:Ecology:Literature: Hammer (1952, 1955); Marshall et al. (1987).Oppiella sp. 3 DEW (RAM 99000094)Also Known As:ABMI code/Common name: OPPISP3Diagnostic characters: Female ventral length 385-395. Prodorsum with well developed costulae(~58-60) and crista with lateral spurs. Prodorsum microtuberculate between bothridium andleg bases and with cluster of large sigillae laterad le; sensillus (~75-80) spindle-shaped andwith a half dozen short (mostly 2) spines, bothridial notch forming large tubercle that meetssingle triangular sejugal tubercle; costula with basal spur, patch of tubercles in middle,lacking lateral ridge encompassing in (with a few barbs, ~40-45), and extending past le(simple, ~25-30); rostral notch shallow and indistinct, ro (40) barbed, directed forward; ex(~35) simple. Crista with lateral spur, posterior ridge running >1/2 way to base of la; 10pairs of mostly thread-like notogastral setae: c2 (~45-55) curves posteriad; la (45-60)directed laterally; others slender, thread-like (~35-45). Genital plates with 5 pairs of setae;apo paranal; epimeron IV faintly reticulate and tuberculate on posterior margin and lateralcorners; epimeron I with median cluster of reticula.Overview:Barcodes:ID Check: Determination by DEW Balogh & Balogh (2002); Norton & Behan-Pelletier(unpublished).Similar taxa: Except for its larger size, this mite is very similar Oppiella washburni and may beconspecific.ABMI Site Records: 2007: none. 2008: 690. 2009: 14, 498, 883. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution:Images:Ecology:Literature: Marshall et al. (1987).276

Almanac of Alberta Oribatida 2.3 13 January 2013Back to Table of ContentsRamusella Balogh, 1965 (Hammer, 1961) (ITIS 734034)Diagnostic characters: crista and notogastral tubercles absent; 9 pairs notgastral setae; c2present only as alveoli; 5 pairs genital setae; costular lines present or absent; rostral setaeclosely spaced or distant, diverge or converge distally.Also Known As: Oppia CL Koch, 1836Type species: Ramusella puertomonttensis Hammer, 1962World species:Comments: Numerous subgenera have been proposed, but not all species fit the subgenericcharacters.Canadian species listed on DOC (bold = AB): Ramusella sp. ON NS; Ramusella (I.) maculata(Hammer, 1952) YT NU NT MB QC; Ramusella (I.) manifera (Hammer, 1955) NF*Ramusella sp. 1 DEW (RAM 99000034)Also Known As:ABMI code/Common name:Diagnostic characters: Notogastral setae 40-45 long, barbed; c2 present only as alveoli;sensillus with truncate club, biciliate, with 8-10 long tines dorsally and posteriorly, ~8 tinesdecreasing in size on posterior stem; short tines only on anterior stem and club; rostral setaeclosely inserted (~4-5 apart), diverging distally; costular lines absent; body 300-345 long.Overview:Barcodes:ID Check: Determination by DEW based on Subías & Balogh (1989); Subías & Arillo (2001).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [RAM, Edmonton, ex millipede culture; Edmonton exscorpion terrarium]Images:Ecology:Literature: Subías & Balogh (1989); Subías & Arillo (2001)*Ramusella (Insculptoppia) sp. 2 DEWAlso Known As:ABMI code/Common name:277

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: Notogastral setae 25-30 long, barbed; c2 present only as alveoli;sensillus coarsely ciliate (~8 long tines) with narrow, oval club; faint costular shelvespresent, ending in lamellar setae; rostral setae distant (~17 apart), arching forward andconverging distally; body 300-320 long.Overview:Barcodes:ID Check: Determination by DEW based on Subías & Balogh (1989); Subías & Arillo (2001).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB]Images:Ecology:Literature: Subías & Balogh (1989); Subías & Arillo (2001)Suctobelbidae Jacot, 1938 (ITIS 733488)Comments: Suctobelbid mites, especially species of Suctobelbella, are common and abundant inAlberta, but most are tiny (0.25 mm or less in length) and unidentified. Schneider (2005)place members of this family in the carnivore-scavenger-omnivore feeding guild (i.e.feeding on living and dead animals and on fungi) based on nitrogen isotope analysis, butcautioned that this must be interpreted with caution. I know of no observations of feeding inthis family and the guts are void of solid material.B24. A key to the genera of Suctobelbidae in North America1. Notogaster with large, rounded tubercles arranged in 2-5 rows and bearing very shortnotogastral setae (sometimes flattened and hardly observable)(Fig. B24.1A) ..................................................................................................................................... Suctobelbila Jacot 1937- Notogaster without large, rounded tubercles; notogastral setae medium to long (Fig. B24.1B)................................................................................................................................................ 2278

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B24.12. Anterior margin of notogaster with 1-2 pairs of tubercles or cristae (Fig. B24.2A) ........................................................................................................................... Suctobelbella Jacot 1937- Anterior margin of notogaster without tubercles or cristae (Fig. B24.2B) ............................... 3Figure B24.23 Tectopedal fields (pair of flattened elliptical areas on prodorsum) present (Fig. B24.3A) ....... 4- Tectopedal fields absent (Fig. B24.3B) ..................................................................................... 6279

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B24.34. Notogaster with 12 pairs of setae; genital plates with 7 pairs of setae (Fig. B24.4A) ............................................................................................... Parisuctobelba Higgins & Woolley 1976- Notogaster with 9 or 10 pairs of setae; genital plates with 4-6 pairs of setae (Fig. B24.4B) .... 5Figure B24.4280

Almanac of Alberta Oribatida 2.3 13 January 20135. Rostrum with distinct lateral incision, with 2-3 pairs of teeth laterally; bothridium withposterior tubercle; small (190-290)(Fig. B24.5A) ................................ Suctobelba Paoli 1908- Rostrum without lateral incision, with 1 or 3-4 pairs of teeth laterally; bothridium withoutposterior tubercle; larger (>400)(Fig. B24.5B) .......................... Allosuctobelba Moritz 1970Figure B24.56. Prodorsum almost twice as long as wide. Rostrum with 1 pair of large lateral teeth, long andprotruding (Fig. B24.6A) ........................................................ Rhinosuctobelba Woolley 1969- Prodorsum only a little longer than wide. Rostrum without lateral teeth (Fig. B24.6B) ..............................................................................................................Rhynchobelba Willmann 1953Figure B24.6B25. Key to Suctobelbidae in Alberta1. Ventral body length >300 ............................................................................................................ 2- Ventral body length

Almanac of Alberta Oribatida 2.3 13 January 20132. Anterior notogastral margin straight with pair of lateral tubercles opposed to tubercles onbothridia ........................................................................................................... Suctobelbella (3)- Anterior notogastral margin procurved or straight, but without a pair of tubercles opposed totubercles on bothridia .................................................................................... Allosuctobelba (5)3. Tectopedal fields with granules or tubercles; >320 long ............................................................. 4- Tectopedal fields smooth; 300 long; sensillus swollen distally, acuminate and with numerousbarbules on ventral aspect; rostrum with one large dagger-like tooth distally followed by 3small teeth .......................................................................................... Suctobelbella sp. 3 DEW4. Sensillus with subspatulate club with barbed margin; prodorsum evenly microtuberculate andwith larger, coarse tubercles between and laterad tectopedal fields; rostrum +/- evenly serrate,without much larger distal tooth; 345-65 long .................................. Suctobelbella sp. 2 DEW- Sensillus with fusiform-acuminate club with ciliate margin; prodorsum evenlymicrotuberculate, without fields of large, irregular tubercles; rostrum with single large distolateraltooth and serrate margin with ~6-10 pairs small teeth; 320-370 long ................................................................................................................ Suctobelbella punctata (Hammer, 1955)5. Notogaster more or less rounded medially; prodorsum mostly microtuberculate with or withouta few tubercles medially; sensillus slender head only slightly expanded and with a few shortbarbs; 500-610 long ................................................ Allosuctobelba gigantea (Hammer, 1955)- Notogaster sharply truncate medially; prodorsum with large tubercles laterally and betweensubreticulate tectopedal fields; sensillus with elongate fusiform to spatulate head with smallbarbs; 450-520 long ......................................................................... Allosuctobelba sp. 2 DEWAllosuctobelba Moritz, 1970 (ITIS 734136)Diagnostic characters: anterior margin of notogaster without tubercles or cristae; tectopedalfields present; 10 pairs notogastral setae; rostrum with teeth, but without incision aroundpalpal seta; bothridium without posterior tubercle; >400 long.Also Known As: Suctobelba Paoli, 1908; Rhynchobelba Willmann, 1953Type species: Suctobelba grandis Paoli, 1908World species: Varies with generic concepts. Allosuctobelba gigantea (Hammer, 1955);Allosuctobelba grandis (Paoli, 1908); and Allosuctobelba obtusa (Jacot, 1938) are reportedfrom North America in Marshall et al. (1987).Comments: Generic concepts in Suctobelbidae are in disarray. Parisuctobelba septenia Higginsand Woolley, 1976; Rhinosuctobelba dicerosa Woolley and Higgins, 1969 (6 pairs ofgenital setae) and an undescribed species of Rhynchobelba are known from the USA: bothlack tectopedal fields and have only one or no lateral rostral teeth, respectively.Canadian species listed on DOC (bold = AB): Allosuctobelba sp.**Allosuctobelba gigantea (Hammer, 1955) (ITIS 739974)Also Known As: Suctobelba gigantea Hammer, 1955;282

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI code/Common name: ALLOGIGDiagnostic characters: length (type series 500-610); prodorsum microtuberculate, tectopedalfields reticulate; in fine, simple, curve mesad; rostrum with 2 strong teeth on each side and3 shallow teeth; lamellar knob well developed and bearing fine, simple lamellar setae; bo(~100) with spatulate head with small barbs; notogastral setae simple (70-80).Overview: Specimens from 1007, 1353, 1378, and1402 are a bit smaller (495-545) and have notubercles medially on the prodorsum compared to those from 932, 933, and 1041.Barcodes: 1402 (658)ID Check: Determination by DEW based on Hammer (1955), Krivolutsky (1971), Gilyarov &Krivolutsky (1975), and Norton & Kethley (1989). NB – 1403 specimen misattributed tosp. 2 previously.Similar taxa:ABMI Site Records: 2007: none. 2008: 932, 933, 1007, 1041, 1353, 1378, 1402, 1403. 2009:1491, 1510, 1529. 2010: 324, 876, 1237, OG-1325-1. 2011: 963, 964, 968, 996, 1001, 1031,1072.DOC (1/2008): [+other] Distribution: Allosuctobelba sp. reported from QC, NF; A. gigantea(Hammer, 1955) from AKImages: SEM (932, 1041)Ecology:Literature: Hammer (1955); Marshall et al. (1987).*Allosuctobelba sp. 2 DEW (RAM 99000076)Also Known As:ABMI code/Common name: ALLOSP2Diagnostic characters: length 450-520; prodorsum with large tubercles laterally and betweensmooth tectopedal fields; ex fine (~25); le (45-55) simple, on separate tubercles at head ofinter tectopedal area of small tubercles; in (~35-40) simple, extend beyond insertions of le;rostrum with 5 strong teeth on each side, anterior tooth largest, posteriormost 2 pairs short;posterior margin of prodorsum with irregular median tubercles and irregularly toothed ornotched tubercles posterior to bothridia; bo (70-85) with elongate fusiform to spatulate headwith small barbs; notogastral setae simple (80-100).Overview: nr novusBarcodes:ID Check: Determination by DEW based on Hammer (1955), Krivolutsky (1971), Gilyarov &Krivolutsky (1975), Norton & Kethley (1989).Similar taxa: A. grandis (Paoli, 1908) has 2-3 lateral rostral teeth, short interlamellar setae thatare barbed, a rostrum that is granulate rather than tuberculate, and the sensillus is fusiform283

Almanac of Alberta Oribatida 2.3 13 January 2013with a long distal spine. A. obtusa (Jacot, 1938) has 4-5 rostral teeth, interlamellar setae thatare fine and smooth, and the prodorsum is densely tuberculate. A. novus (Krivolutsky,1971) appears to be very similar to A. obtusa.ABMI Site Records: 2007: 216, 358, 601, 631, 663, UPL5. 2008: 444, 1403. 2009: 508, 529,530, 560, 561, 570. 2010: 324, 1036. 2011. 332, 391, 392, 604, 608, 969, 1071, 1072,A608-2, A7.DOC (1/2008): [+other] Distribution: Allosuctobelba sp. reported from QC, NF; A. gigantea(Hammer, 1955) from AKImages:Ecology:Literature: Hammer (1955); Krivolutsky (1971); Gilyarov & Krivolutsky (1975); Marshall et al.(1987); Norton & Kethley (1989)Suctobelbella Jacot, 1937 (ITIS 734155)Diagnostic characters: anterior margin of notogaster with 1-2 pairs of tubercles or cristaeAlso Known As: many of these species have been previously placed in Suctobelba Paoli, 1908;Suctobelbata Gordeeva, 1991Type species: Suctobelbella serratirostrum Jacot, 1937World species: ~185Comments:Canadian species listed on DOC (bold = AB): Suctobelbella acutidens (Forsslund, 1941); S.frothinghami Jacot, 1937; S. hammerae (Krivolutsky, 1965); S. hurshi Jacot, 1937; S.laxtoni Jacot, 1937; S. longicuspis Jacot, 1937; S. nr. acutidens (Forsslund, 1941) (see PartII); S. palustris (Forsslund, 1953); S. sarekensis (Forsslund, 1941); S. setosoclavata(Hammer, 1952); Suctobelbella sp. (see Part II)**Suctobelbella punctata (Hammer, 1955) (RAM 99000069)Also Known As: Suctobelba punctata Hammer, 1955; Suctobelbata punctata (Hammer, 1955)ABMI code/Common name: SUCTPUCDiagnostic characters: length 320-370; rostrum with row of 6 shallow teeth on either side, notdeep slits, anterior tooth is largest; prodorsum densely covered in small, rounded tubercles,bo (70) with ciliate head and small basal barbs, in (~25-30) fine, inserted at base of median,back-projecting tubercles that meet straight edge of notogaster and median anterior processthat meets lamellar tubercle; le (~35) fine, closely inserted on large, circular tubercle;tectopedal fields well developed; ro geniculate, barbed; sejugal region with pair of tuberclesbracketing straight median ridge; notogaster smooth, with 8 pairs of simple setae (30-40); 6pairs genital setae, anterior pairs very long (~30); ventral plate densely micropunctate;monodactyl.284

Almanac of Alberta Oribatida 2.3 13 January 2013Overview: Reasonable agreement with Hammer’s figures.Barcodes:ID Check: Determination by DEW based on Hammer (1955).Similar taxa: see Allosuctobelba.ABMI Site Records: 2007: 512, 584, 664. 2008: 345, 901. 2009: 570. 2010: 1170, ALPAC-8,ALPAC-12. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [AK]Images:Ecology:Literature: Hammer (1955); Marshall et al. (1987); Lindo & Visser (2004).Suctobelbella sp. 2 DEW (RAM 99000052)Also Known As:ABMI code/Common name: SUCTSP2Diagnostic characters: length 365; rostrum with row of 6 shallow teeth on either side, not deepslits, anterior tooth is largest; prodorsum densely covered in small, rounded tubercles, bo(55-60) with barbed club (spoon), ex (~30) fine, in (~25-30) fine, inserted at base ofmedian, back-projecting tubercles that meet edge of notogaster; le (~50) barbed, closelyinserted on large, irregular tubercle, with a dozen or more small tubercles anteriorlybetween tectopedal fields; ro geniculate, barbed; sejugal region with pair of tuberclesbracketing straight median ridge; notogaster smooth, with 8 pairs of simple setae (35-40); 6pairs genital setae, anterior pairs very long (~40); ventral plate smooth?; monodactyl.Overview: similar to S. punctata but larger, and with different lamellar tubercle and anteriormedian field of small tubercles, le barbed, bo distally capitateBarcodes:ID Check: Determination by DEW based on Hammer (1955), Krivolutsky (1971), Gilyarov &Krivolutsky (1975), Norton & Kethley (1989).Similar taxa: S. frothinghami Jacot, 1937 has a similar sensillus, but is much smaller.ABMI Site Records: 2007: 631. 2008: none. 2009: 530. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution:Images:Ecology:Literature: Marshall et al. (1987); Lindo & Visser (2004).Suctobelbella sp. 3 DEWAlso Known As:285

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI code/Common name: SUCTSP3Diagnostic characters: 300 long; tectopedal fields smooth; sensillus swollen distally, acuminateand with numerous barbules on ventral aspect; rostrum with one large dagger-like toothdistally followed by 3 small teeth.Overview:Barcodes:ID Check: Determination by DEW based on Hammer (1955), Krivolutsky (1971), Gilyarov &Krivolutsky (1975), Norton & Kethley (1989).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: ALPAC-5. 2011: none.DOC (1/2008): [+other] Distribution:Images:Ecology:Literature: Marshall et al. (1987); Lindo & Visser (2004).Thyrisomidae Grandjean, 1954 (ITIS 733475)Diagnosis: Border of epimere IV with minitectum. Genital and anal plates very large, almosttouching, separated by distance of less than half length genital plate. Length: 290-500µm.B26. Key to Genera of Thyrisomidae in North America1. Epimere III and IV not distinctly delineated; border of epimere III not visible. Costulaestrongly converging, shorter than half length of prodorsum, almost meeting apically or withspines between apices (Fig. B26.1A) ................................... Banksinoma Oudemans 1930- Epimere III and IV distinctly delineated. Costulae weakly converging, apically far removedfrom each other (Fig. B26.1B) ............................................................................................ 2286

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B26.12. Dorsosejugal scissure arched. Trochanter IV with dorsodistal spur (Fig. B26.2A) ........................................................................................................................................ Oribella Berlese 1908- Dorsosejugal scissure straight. Trochanter IV without dorsodistal spur (Fig. B26.2B) .......... 3Figure B26.23. Rostrum dentate. Costulae shorter than half length of prodorsum (Fig. B26.3A) ...................................................................................................................... Pantelozetes Grandjean 1953- Rostrum not dentate, rounded. Costulae longer than half length of prodorsum (Fig. B26.3B) ................................................................................................... Gemmazetes Fujikawa 1979287

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B26.3B27. Key to Canadian Species of Banksinoma1. Intercostular area subtriangular, smooth between aspices (Fig. B27.1A) ................................ 2- Intercostular area trapezoidal, ending in field of denticles (Fig. B27.1B) ................................ 4Figure B27.12. Interlamellar seta short, ~1/2 length of lamellar seta; sensillus with distal hair; rostrum withdistal mucro (Fig. B27.2A) .................................................................................................. 3- Interlamellar seta long, subequal to lamellar seta; fields of tubercles between and lateral tocostulae; sensillus spindle-shaped, tapers at end; rostrum rounded, without mucro;bothridium covered by notogaster, which has small humeral process; length 442-466; NF,Palearctic (Fig. B27.2B) ............................................. Banksinoma setosa (Ryabinin, 1974)288

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B27.23. Solenidia of tibia I closely inserted; rostral mucro rounded; epimere IV ‘doubled’; NS, NF,Palearctic (Fig. B27.3A) ........................................ Banksinoma lanceolata (Michael, 1885)- Solenidia of tibia I not closely inserted; rostral mucro acuminate; lines of epimere IV faint YT,NU, NT, ON, NF (Fig. B27.3B) ....... Banksinoma lanceolata canadensis Fujikawa, 1979289Figure B27.34. Interlamellar seta longer than costulae, ~sensillus, >ro; YT, MB, ON, QC, NS; CA, NM (Fig.B27.4A) ................................................................ Banksinoma spinifera (Hammer, 1952)- Interlamellar seta short, not longer than costulae, ~ ½ length of sensillus or ro; MI (Fig.B27.4B).......................................................................... Banksinoma ovata (Wallwork, 196

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B27.4Banksinoma Oudemans, 1930 (ITIS 733981)Diagnostic characters: Oppioidea without apodemata III; with short, converging lamellae; largegenital and anal shields.Also Known As: Thyrisoma Grandjean, 1953Type species: Notaspis lanceolata Michael “sensu” Oudemans, 1930 (= Banksinoma lanceolataoudemansi Fujikawa, 1979)World species: 19Comments:Canadian species listed on DOC (bold = AB): Banksinoma lanceolata (Michael, 1885); B.lanceolata canadensis Fujikawa, 1979; B. setosa (Ryabinin, 1974); Banksinoma sp.; B.spinifera (Hammer, 1952).*Banksinoma lanceolata canadensis Fujikawa, 1979 (ITIS 744300)Also Known As:ABMI code/Common name: BANKLACDiagnostic characters: length 330-400; costulae strongly converging, almost meeting, withoutfield of tubercles; solenidia of tibia I distant; rostral mucro acuminate.Overview: This is a small, yellowish mite with large genital and anal openings that almost meetand a long spike on its sensillus.Barcodes:ID Check: Determination by DEW based on Fujikawa (1979). 358 SE checked by VBP April2008.Similar taxa: B. spinifera290

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: 2007: 358, 389, 601, 631, BOG6, UPL5. 2008: 412, 1402. 2009: 506.2010: none. 2011: 969.DOC (1/2008): [+other] Distribution: YT, NU, NT, ON, NF.Images: SEM (216R, 277R)Ecology: Gravid females carry one or two large eggs. Gut contents include hyaline to brownhyphae and fine to coarse organic material.Literature: Fujikawa (1979); Marshall et al. (1987)291

Almanac of Alberta Oribatida 2.3 13 January 2013*Banksinoma spinifera (Hammer, 1952) (ITIS 738956)Also Known As:ABMI code/Common name: BANKSPIDiagnostic characters: length 390-410; costulae short, ending in field of denticles; interlamellarsetae long, extending well past costulae; rostral mucro acuminate.Overview: This is a small, yellowish mite with large genital and anal openings that almost meet,a fusiform sensillus, and a crown of denticles between the tips of its costulae.Barcodes:ID Check: Determination by DEW based on Hammer (1952).Similar taxa:ABMI Site Records: 2007: 650, 792, UPL8. 2008: BOG1, BOG2. 2009: none. 2010: none.2011: 983, 1050, 1092, 1125, 1127, 1480, 1593.DOC (1/2008): [+other] Distribution: YT, MB, ON, QC, NSImages: SEM (1192R)Ecology: Gravid females carry one or two large eggs. Gut contents include hyaline to brownhyphae and fine to coarse organic material.Literature: Hammer (1952); Marshall et al. (1987).Gemmazetes Fujikawa, 1979 (UBIO 94549520)Diagnostic characters: Oppioidea with apodemata III, long costulae, straight dorsosejugalfurrow; no projection on trochanter IV, no rostral teethAlso Known As: Oribellopsis Kunst, 1971Type species: Oribella crosbyi Berlese, 1908World species:Comments:Canadian species listed on DOC (bold = AB): Gemmazetes sp. YT*Gemmazetes sp. 1 DEW (RAM 99000023)Also Known As:ABMI code/Common name: GEMMSP1Diagnostic characters: ventral length 400-420; costulae marginal, parallel, extending beyondlamellar setae which are medial, closer together than interlamellar setae; dorsal setae long,smooth; bo barbed, spindle-shaped; tridactylous.292

Almanac of Alberta Oribatida 2.3 13 January 2013Overview: This small yellowish mite has large genital and anal openings that almost touch, butunlike the related mites in the genus Banksinoma that have converging costulae,Gemmazetes species have widely space, parallel costulae.Barcodes:ID Check: Determination by DEW based on Balogh & Balogh (2002); Norton & Behan-Pelletier(unpublished).Similar taxa:ABMI Site Records: 2007: 1133. 2008: none. 2009: none. 2010: 1202. 2011: 1034 NE Res.DOC (1/2008): [+other] Distribution: Gemmazetes sp. reported from YTImages:Ecology: Gut contents include coarse and sheet-like organic material and fragments of hyphae.Literature: Marshall et al. (1987).Back to Table of ContentsTectocepheoidea Grandjean, 1954 (ITIS 733371)(Back to Key to Brachypylina)Tectocepheidae Grandjean, 1954 (ITIS 733499)Tectocepheus Berlese, 1896 (ITIS 734234)Diagnostic characters: small mites without dorsosejugal furrow or pteromorphs; lamellae andtranslamella present; 6 pairs genital setae; monodactyl.Also Known As:Type species: Tegeocranus velatus Michael, 1880Etymology – Cepheus – Mythical ruler of Ethiopia, father of Andromeda, husband ofCassiopeia; tecto – (L, G) = a roof, coveringWorld species: Several dozen species and subspecies have been proposed.Comments: The velatus-complex is comprised of small, parthenogenetic (thelytokous) mites thathave been variously treated as members of one highly variable species (Tectocepheusvelatus s.l.) to 29 or more different species. Three species are listed from North America inMarshall et al. (1987) including the two species below and Tectocepheus minor Berlese,1903. Schneider (2005) placed mites in this genus in the primary decomposer feeding guild(i.e. they feed mostly on litter). Species of Tectocepheus appear to be most common indisturbed habitats and in modern soils.Canadian species listed on DOC (bold = AB): Tectocepheus sarekensis Trägårdh, 1910;Tectocepheus sp.; T. velatus (Michael, 1880)293

Almanac of Alberta Oribatida 2.3 13 January 2013B28. Key to adult Tectocepheus1. Ventral body length 295-360; 3 pairs of notogastral depressions (Fig. B28.1A) ........................................................................................................... Tectocepheus sarekensis Trägårdh, 1910- Ventral body length 270-320; 1 pair of notogastral depressions (Fig. B28.1B) .................................................................................................................. Tectocepheus velatus (Michael, 1880)294Figure B28.1*Tectocepheus sarekensis Trägårdh, 1910 (RAM 99000147)Also Known As: Tectocepheus velatus sarekensis Trägårdh, 1910; Tectocepheus velatusangulatus & ibericus & inflexus ABMI code/Common name: TECTSAR; Six-dimpled Northern MiteEtymology – Sarek – River and National Park in Northern Sweden (also a Star Trek Character)Diagnostic characters: length 295-360; 3 pairs of notogastral depressions; lamellar cusps (35-50) narrow to truncate distally; bo (55-60) geniculate, with dense, dark barbs and swollentip; in (6-8) minute; le (~40) curved medially, barbed basally, smoothly acuminate distally;cerotegumental granules mostly 3-5 dia.; apo

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: 2007: 218, 575, 586, 650, 792, 855, 856, 1149, 1150, 1252, 1253, 1602,1620. 2008: 314, 374, 721, 899, 1041, 1116, 1117, 1224, 1380, 1402, 1434, 1436, 1457,1477, 1619, 1637, SL03, SL18. 2009: 528, 947, 948, 1303, 1491, 1511, 1556, 1569, 1574,1585, 1590, 1612, 1627, 72L-1, 72L-4, 72M-3. 2010: 179, 208, 209, 890, 891, 892, 924,925, 957, 1176, 1177, 1209, 1326, 1352, , 1428, 1430, 1443, 1451, 1452, 1471, 1473, 1486,1538, 1653, ALPAC-10, ALPAC-13, OG-942-1, OG-1007-1, OG-1104-1, OG-1210-1,OG-1210-1, OG-1210-2, OG-1326-2, OG-1326-2, OG-1352-1, OG-1354-1. 2011: 93, 958,983, 997, 1016, 1057, 1136, 1217, 1275, 1304, 1480, 1482, 1561, 1593, 1623, A602-1,A637-1, A702, OG-1282-1, OG-1455-1.DOC (1/2008): [+other] Distribution: YT; [AK; Meanook, Australia, Holarctic]Images: SEM (Meanook)Ecology: This small mite is widely distributed, but rarely reported in Canada. Only female mitesare known and they reproduce by parthenogenesis. Species of Tectocepheus are thought tobe primarily detritus feeders. Pizl & Stary (2001) found that “Mulching and lying fallowresulted in changes of community structure of oribatid mites; dominance and populationdensity of eudominant species Tectocepheus sarekensis decreased”. Stamou &Argyropoulou (1995) found that “Tectocepheus sarekensis can be used as bioindicators for... Zn pollution of soils”. Domes et al. (2007) found that T. sarekensis females had arelatively high number of eggs (3) for small parthenogenetic mites.Literature: Marshall et al. (1987); Weigmann (2002); Laumann et al. (2007).295

Almanac of Alberta Oribatida 2.3 13 January 2013Tectocepheus velatus (Michael, 1880) (ITIS 741050)Also Known As: Tegeocranus velatus Michael, 1880; Tectocepheus velatus velatus (Michael,1880)ABMI code/Common name: TECTVELDiagnostic characters: ventral length 270-320; 1 pair of notogastral depressions; lamellarcusps (25-30) rounded to oblique; bo (55-60) geniculate, with dense, dark barbs andswollen tip; in (5-6) minute; le (~30) curved medially, barbed basally, smoothly acuminatedistally; cerotegumental granules mostly 2-3 dia.; apo ~90 to anal openingOverview: The two species most easily separated in alcohol by 1 vs 3 pairs of notogastraldepressions, so most voucher specimens are in vials.Barcodes:ID Check: Determination by DEW based on Laumann et al. (2007).Similar taxa:ABMI Site Records: 2007: 216, 277, 330, 358, 388, 389, 390, 484, 512, 515, 544, 601, 616, 631,663, 1070, 1101, 1133, 1134, BOG5, BOG6, UPL5. 2008: 473, 720, 868, 899, 901, 976,1008, FM04, UPL1. 2009: 537. 2010: 890, 892, 1035, 1171, 1202, 1202, 1202, 1207, 1539,ALPAC-11, ALPAC-12, ALPAC-16, OG-972-1, OG-1171-1, OG-1354-1. 2011: 122.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, BC, SK, MB, ON, QC, NB, NS, PE, NF;[Cosmopolitan; EMEND; 414 Residuals]Images:Ecology: Parthenogenetic: gravid females carry 2 large eggs. Subfossil specimens (3250, 6150BP) have been reported from peat in NE Russia (Krivolutsky & Sidorchuk 2003).Specimens have been found in the feathers of birds in Russia, a possible means of longdistance dispersal (see Krivolutsky & Lebedeva 2004). Tectocepheus velatus is among theearliest colonists of new soil exposed by retreating glaciers (Hågvar et al. 2009).Literature: Marshall et al. (1987); Lindo & Visser (2004); Laumann et al. (2007).Back to Table of ContentsHydrozetoidea Grandjean, 1954 (ITIS 733372)Comments: As might be guessed from the name, members of this family are aquatic and are notcommon in the ABMI survey samples.(Back to Key to Brachypylina)B29. Key to families and genera of Hydrozetoidea in Canada1. Pteromorphs absent (Fig. B29.1A) ...................................................... Hydrozetes Berlese, 1902- Pteromorphs present (Fig. B29.1B)........................................................... Limnozetes Hull, 1916296

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B29.1Hydrozetidae Grandjean, 1954 (ITIS 553091)Hydrozetes Berlese, 1902 (ITIS 553094) Duckweed MitesDiagnostic characters: lenticulus and peritrematal fields present; pteromorphs absent;prodorsum usually with well developed costulaeAlso Known As: Hydrozetes (Hydrozetes) Berlese, 1902 (ITIS 734807)Etymology: water + winged; common name = Duckweed MitesType species: Notaspis lacustris Michael, 1882World species: ~30Comments: This genus is considered truly aquatic (reproduces in water and all stages live in freshwater or at its margins) by Schatz & Behan-Pelletier (2008). Immature Hydrozetesgenerally burrow within aquatic vegetation such as duckweed (Lemna spp.) and adults feedon the surface of vegetation. Although primarily aquatic, large numbers can be collectedfrom moss on lake margins, muskeg, and other peatlands. An undescribed Palaeocene (~58million years before the present) fossil species of Hydrozetes is known from the PaskapooFormation in the Red Deer River valley of Alberta; others are known from Lower Jurassicdeposits (~190 mybp) in Sweden and Oligocene-Miocene deposits in Mexico (~23 mybp)(Baker & Wighton 1984).Canadian species listed on DOC (bold = AB): Hydrozetes lacustris (Michael, 1882); Hydrozetessp.; H. thienemanni Strenzke, 1943B30. Key to adult extant Hydrozetes in Canada(modified from an unpublished key by RAN)1. Bothridial seta (bo) highly reduced or absent; 7 (8-9) pairs of genital setae; u and p setae (2most distal pairs) of tarsi II-IV blunt, tuberculate; tarsus IV monodactyl ................................. 2- Bothridial seta (bo) produced as a short club; 6 pairs of genital setae; u and p setae of tarsi II-IV setiform; tarsus IV bidactyl with setiform lateral claw ........................................................ 4297

Almanac of Alberta Oribatida 2.3 13 January 20132. Posterior notogastral setae not arranged in rows of 4-5 setae; 3 pairs of h-setae ........................ 3- Posterior notogaster with supernumery h-setae aligned in rows of 4-5 setae; 7 or more pairs ofgenital setae; strongly foveolate; ventral length 450-526 .............................................................................................................................................. Hydrozetes parisiensis Grandjean, 19483. Notogastral setae relatively short, lm inserted anterior to gland opening; prodorsal setae in andle similar in length to bo .................................................. Hydrozetes lacustris (Michael, 1882)- Notogastral setae relatively long, lm inserted posterior to gland opening near seta lp; prodorsalsetae in and le several times length of bo .................. Hydrozetes octosetosus Willmann, 19324. Notogastral setae relatively short, median setae falling far short of next seta in series;subunquinal (s) seta on venter of tarsus I smooth (eupathidial) ................................................ 5- Notogastral setae relatively long, c2 passing insertions of da and la, da passing insertion of dm,la reaching lm; subunquinal seta of tarsus I barbed; 375-470 long, all-female .............................................................................................................................Hydrozetes lemnae Coggi, 18995. Femur IV with 2 setae; rostrum without incisions; prodorsal ridge absent or well developed,but does not reach bothridium ................................................................................................... 6- Femur IV with 3 setae; rostrum with a pair of small incisions; prodorsal ridge well developedand reaches bothridium ............................................. Hydrozetes thienemanni Grandjean, 19486. Prodorsal ridge well developed (Fig. B30.2); lamellar setae inserted at tips of costulae ............ 7- Prodorsal ridge not visible; lamellar setae inserted anterior to costulae or weakly associatedwith their tips; notogaster foveolate, setae barbed; ventral length 550-580 (Fig. B30.1) .......................................................................................................................... Hydrozetes sp. 1 DEWFigure B30.1, Hydrozetes sp. 1 DEW: prodorsum, femur IV, notogaster ornamentation and setae.298

Almanac of Alberta Oribatida 2.3 13 January 20137. Notogastral setae, simple, slender; notogaster pitted, but without foveae; femur IV withoutdistal knob (although may have keel and spur); ventral length

Almanac of Alberta Oribatida 2.3 13 January 20138. Femur IV with strong ventral keel and distal spur; cerotegument simple, without reticulatepattern; ventral length 570 ..................................................................... Hydrozetes sp. 3 DEW- Femur IV without strong ventral keel or distal spur; trochanter IV with posterior tooth;cerotegument on prodorsum and lateral notogaster may have weak reticulate pattern; ventrallength 580-600 (Fig. B30.4) .................................................................. Hydrozetes sp. 2 DEWFigure B30.4, Hydrozetes sp. 2 DEW: prodorsum, trochanter IV (with tooth), and femur IV.***Hydrozetes sp. E RAN (RAM 99000028)Also Known As:ABMI code/Common name: HYDRSPE; Roy’s Duckweed MiteDiagnostic characters: 590-680 ventral length; tarsus IV heterobidactyl, empodial claw longscimitarshape, lateral claw setiform; distal setae on tarsus I acicular, smooth to serrate;femur IV with 2 setae and short, ventro-distal carina; femur III with 3 setae; lateralprodorsal ridges (tup) curve before bothridium; lamellar seta at distal end of costula; bo~50-55, club half of length; 13 pairs fine, medium notogastral setae; 6 pairs genital setae.Overview: Roy Norton is describing this new species.Barcodes: MP AD(389, 390, 588), N(561).ID Check: Hydrozetes sp. E (Moose Pasture Research Site 8 km W Chipman, AB specimens)identified by RAN; Norton (in prep.).Similar taxa: see key above.300

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: 2007: 515, 545, 601, 631, 663, 665, 1103, BOG6. 2008: SL21. 2009: 507,530, 570, 698, 881, 883. 2010: 324, 352, 909, 1036. 2011: 391, 392, 604, 608, 672, 969,1003, 1071.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444)]; Hydrozetes sp. reported from AB, YT, QC, NB, NS , NF; [AK]Images: SEM (Edmonton)Ecology: Females can carry at least 6 eggs; gut contents include fungal hyphae and spores, plantmaterial, and amorphous material. Bisexual.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Seniczak et al. (2009);Norton (unpublished).** Hydrozetes octosetosus Willmann, 1932Also Known As:ABMI code/Common name:Diagnostic characters: bo regressed; distal tarsal setae papilliform, notogaster setae very long;tarsus IV monodactyl.OverviewBarcodes:ID Check:Similar taxa: Hydrozetes lacustris (Michael, 1882)ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [Namur Lake]Images:Ecology:Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Seniczak et al. (2009);Norton (unpublished).**Hydrozetes parisiensis Grandjean, 1948Also Known As: Hydrozetes lacustris parisiensis Grandjean, 1948ABMI code/Common name: HYDRPARDiagnostic characters: bo regressed; distal tarsal setae papilliform, posterior notogaster withrow of extra setae; tarsus IV monodactyl.Overview: Treated as a subspecies of H. lacustris by some authors.Barcodes: MP (0, 399)301

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by RAN for Moose Pasture Research Site 8 km W Chipman, ABspecimens.Similar taxa: Hydrozetes lacustris (Michael, 1882)ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444); Holarctic]Images:Ecology: A widespread all-female species.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Seniczak et al. (2009);Norton (unpublished).***Hydrozetes sp. 1 DEW (RAM 99000089)Also Known As:ABMI code/Common name: HYDRSP1Diagnostic characters: bo club-shaped; distal tarsal setae setiform, prodorsal ridge absent,lamellar seta inserted anterior to terminus of costula; femur IV with 2 setae, lacking distalventral carina; femur III with 3 setae; notogaster foveolate; 13 pairs notogastral setae,including da, dm, dp; ventral length 550-580.Overview: This is near sp. A in RAN key, but doesn’t quite fit.Barcodes:ID Check: Determination by DEW based on unpublished key by RAN.Similar taxa:ABMI Site Records: 2007: 545. 2008: 444. 2009: none. 2010: none. 2011: 997.DOC (1/2008): [+other] Distribution:Images:Ecology: Gut contents include fungal hyphae and sheet-like material. Bisexual.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Seniczak et al. (2009);Norton (unpublished).***Hydrozetes sp. 2 DEW (RAM 99000088)Also Known As:ABMI code/Common name: HYDRSP2Diagnostic characters: Female ventral length 580; bo club-shaped; distal tarsal setae setiform,prodorsal ridge distinct, lamellar seta inserted at tip of costula; notogaster may havereticulate cerotegument ornamentation laterally; femur IV with 2 setae, lacking ventralcarina or strong distal spur; femur III with 3 setae.302

Almanac of Alberta Oribatida 2.3 13 January 2013Overview:Barcodes:ID Check: Determination by DEW based on unpublished key by RAN.Similar taxa: Hydrozetes sp. 3 DEWABMI Site Records: 2007: none. 2008: 474. 2009: none. 2010: 179. 2011: 63, 984, OG-1054-1,OG-1122-1.DOC (1/2008): [+other] Distribution:Images:Ecology: The one adult female collected in 2008 has 7 eggs and a small bolus of fungal hyphae.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Seniczak et al. (2009);Norton (unpublished).***Hydrozetes sp. 3 DEWAlso Known As:ABMI code/Common name: HYDRSP3Diagnostic characters: Ventral length female 570. Prodorsum with prodorsal ridge TUPreaching about 1/3 rd up lamellae; bo (~34) with rounded distal club; le (~25) fine, attenuatedistally, inserted under tip of costula, in (~13) fine inserted on base of costula; ex (~8) fine;rostrum with blunt tip, without notches. Notogaster pitted and with pebbly peritremelaterally, notogastral setae (25-35) fine, simple, 1-2 c-series, 3+3 d- and l-series, and ~9 inh- and p-series. Tarsus IV with hair-like lateral claw; tibia IV with dorso-distal spine; femurIV with 2 setae and strong ventral carina ending in spur; femur III with 3 setae; distal setaeof tarsus I setiform; seta u on tarsi II-IV thick, ending in several large teeth (but on tarsus IIIwith ciliate tip).Overview:Barcodes:ID Check: Determination by DEW based on unpublished key by RAN.Similar taxa: Hydrozetes sp. 2 DEWABMI Site Records: 2007: none. 2008: none. 2009: 506. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution:Images:Ecology:Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Seniczak et al. (2009);Norton (unpublished).303

Almanac of Alberta Oribatida 2.3 13 January 2013Limnozetidae Thor, 1937 (ITIS 7333517)Limnozetes Hull, 1916 (ITIS 734294)Diagnostic characters: Hydrozetidae with pteromorphs.Also Known As: noneType species: Oribata sphagni Michael, 1880World species: 14Comments: This genus is considered truly aquatic (reproduces in water and all stages live in freshwater or at its margins) by Schatz & Behan-Pelletier (2008).Canadian species listed on DOC (bold = AB): Limnozetes amnicus Behan-Pelletier, 1989; L.atmetos Behan-Pelletier, 1989; L. borealis Behan-Pelletier, 1989; L. canadensis Hammer,1952; L. ciliatus (Schrank, 1803); L. guyi Behan-Pelletier, 1989; L. latilamellatus Behan-Pelletier, 1989; L. lustrum Behan-Pelletier, 1989; L. palmerae Behan-Pelletier, 1989;Limnozetes sp.*Limnozetes canadensis Hammer, 1952 (RAM 99000032)Also Known As: Limnozetes ciliatus (Schrank, 1803) in Subías (2004)ABMI code/Common name: LIMNCANDiagnostic characters: ventral length 320-380; genu IV with 2 setae; tarsus IV with 11 setae;notogaster and pteromorphs with rugose-reticulate ornamentation; bo (8-9) minute, onlyslightly swollen distally; in (~35-40) thread-like, attenuate; le (~40) thick, down-curled,barbed; ro (60-65) barbed basally, attenuate distally; lamellae (~90, cusp 18- 20) withouttranslamella (thickened cuticle at base of cusps appears as in-turned hooks = incompletetranslamella of Hammer), with cusps just passing insertion of ro, prolamellar ridgesconverge towards tip of rostrum; tutorium with longitudinal lineae and short cusp(~20) thatjust falls short of insertion of ro; genal tooth short, broad, passes ro; rostrum with twoshallow notches; genu IV with 2 setae; pteromorphs tongue-like, about as long as wide.Overview: Compared to type at CNC. Limnozetes is very diverse in eastern North America andthis collection has some similarities with L. lustrum Behan-Pelletier (1989). Limnozetescanadensis Hammer, 1952 is reported from YT, NU, NT, MB, ON (370 long, 240 wide; bowith globose head, notogaster pitted, ro inserted level with incomplete ‘translamella’, cusps1/3 rd length lamellae), but Hammer’s description is not complete enough for identification.Barcodes:ID Check: Determination by DEW based on Hammer (1952), Behan-Pelletier (1989), and bycomparing 277 NE to Holotype; confirmed VBP April 2008.Similar taxa: L. lustrum Behan-Pelletier 1989; L borealis Behan-Pelletier 1989ABMI Site Records: 2007: 277. 2008: 444, 474. 2009: 569. 2010: none. 2011: 608.DOC (1/2008): [+other] Distribution: see commentsImages:304

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: This is a fully aquatic mite able to reproduce under water. Only females are known andthe mite is probably parthenogenetic (thelytokous).Literature: Hammer (1952); Marshall et al. (1987); Behan-Pelletier (1989).Back to Table of ContentsAmeronothroidea Willmann, 1931(Back to Key to Brachypylina)Ameronothridae Willmann, 1931Ameronothrus Berlese, 1896Diagnostic characters: Genital plates with 5 pairs of setae; lyrifissure iad positioned anterior toad3.Also Known As: Hygroribates Jacot, 1934Type species: Eremaeus lineatus Thörell, 1871World species: ~13Comments: Mites in this genus are littoral inhabitants found along seashores, streams, and lakes,especially in arctic and subarctic environments.Canadian species listed on DOC (bold = AB): Ameronothrus lineatus (Thörell, 1871); A.maculatus (Michael, 1882); A. nigrofemoratus (L. Koch, 1879); Ameronothrus sp.Ameronothrus lineatus (Thörell, 1871)305

Almanac of Alberta Oribatida 2.3 13 January 2013B31. Key to the species of Ameronothus in Canada1. Tarsi tridactyl ............................................................................................................................... 2- Tarsi monodactyl; NU, NT, BC, MB ...................Ameronothrus nigrofemoratus (L Koch, 1879)2. I); MB .................................................................... Ameronothrus maculatus (Michael, 1882)- Labiogenal articulation incomplete; tibial seta d absent; YT NU NT ................................................................................................................................ Ameronothrus lineatus (Thörell, 1871)Ameronothrus sp.Also Known As:ABMI code/Common name:Diagnostic characters:Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, NFImages:Ecology: These mites are usually found along seashores, but Hammer (1952) found deadspecimens of an unidentified species of Ameronothrus in spruce litter near a brook.Ameronothrus maculatus (Michael, 1882) was collected in rocks and willow along theshore of Hudson Bay and A. nigrofemoratus (L. Koch, 1879) in tidally submerged meadowsalong the Churchill River.Literature: Hammer (1952); Marshall et al. (1987).Back to Table of ContentsCymbaeremaeoidea Sellnick, 1928 (ITIS 733374)(Back to Key to Brachypylina)Cymbaeremaeidae Sellnick, 1928 (ITIS 733505)Ametroproctus Higgins & Woolley, 1968 (ITIS 734260)Diagnostic characters: body covered with thick cerotegument; lamellae wide, converging, cuspsbearing setae le; pedotecta I, II present; notogaster with 9-10 pairs of setae; tutoriumpresent, with or without cusp; humeral projection present or absent; 4 or 6 pairs of genitalsetae.306

Almanac of Alberta Oribatida 2.3 13 January 2013Also Known As: Coropoculia Aoki & Fujikawa, 1972; Ametroproctus (Ametroproctus) (ITIS734810)Type species: Ametroproctus oresbios Higgins & Woolley, 1968World species: 7Comments: Inhabitants primarily of dry alpine and subalpine areas. Two subgenera are currentlyrecognized, Ametroproctus (ITIS 734810) and Coropoculia.Canadian species listed on DOC (bold = AB): Ametroproctus beringianus Behan-Pelletier, 1987;A. canningsi Behan-Pelletier, 1987; A. oresbios Higgins & Woolley, 1968; A. reticulatusAoki & Fujikawa, 1972; A. tuberculosus Behan-Pelletier, 1987B32. Key to the species of Ametroproctus in Alberta(modified from Behan-Pelletier 1987)1. Dorsal ridge of pedotectum I short, not reaching seta ex; 4 pairs genital setae; femur III with 2setae (Fig. B32.1A) ............................................................ Ametroproctus (Ametroproctus) 2- Dorsal ridge of pedotectum I well developed and reaching seta ex; 6 pairs genital setae; femurIII with 3 setae (Fig. B32.1B) ................................................ Ametroproctus (Coropoculia) 3Figure B32.12. Notogaster with irregular ridges; short humeral projection present (Fig. B32.2A) ..................................................................................... Ametroproctus oresbios Higgins & Woolley, 1968- Notogaster tuberculate; humeral projection absent (Fig. B32.2B) ............................................................................................................... Ametroproctus tuberculosus Behan-Pelletier, 1987307

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B32.23. Notogaster with subreticulate sculpturing; dorso-sejugal furrow incomplete medially (Fig.B32.3A) ............................................. Ametroproctus reticulatus (Aoki & Fujikawa, 1972)- Notogaster with without sculpturing; dorso-sejugal furrow complete (Fig. B32.3B) ...................................................................................... Ametroproctus canningsi Behan-Pelletier, 1987308Figure B32.3

Almanac of Alberta Oribatida 2.3 13 January 2013Ametroproctus canningsi Behan-Pelletier, 1987Also Known As:ABMI code/Common name: AMETCANDiagnostic characters: dorsal ridge of pedotectum I well developed and reaching seta ex; 6 pairsgenital setae; femur III with 3 setae; notogaster without sculpturing; humeral projectionwell developed; dorso-sejugal furrow complete.Overview: subgenus CoropoculiaBarcodes:ID Check:Similar taxa: Ametroproctus reticulatus (Aoki & Fujikawa, 1972) has reticulate sculpturing.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: BC, AB [Waterton Lakes National Park].Images:Ecology: The type series of this species was collected from moss, cushion plants, and litter at1863-2063m in the Cascade and Rocky Mountains.Literature: Behan-Pelletier (1987).*Ametroproctus oresbios Higgins & Woolley, 1968 (ITIS 741258)Also Known As:ABMI code/Common name: AMETRETDiagnostic characters: Dorsal ridge of pedotectum I short, not reaching seta ex; notogastercovered with subreticulate ridges; 4 pairs genital setae; 2 pairs anal setae; tutorium withcusp; femur III with 2 setae; in and notogastral setae ~21 long.Overview: subgenus Ametroproctus; in Charassobatidae in Marshall et al. (1987). Reported fromAlberta in Behan-Pelletier (1987), but not listed as such on DOC.Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1987); checked by VBP 13 Aug08.Similar taxa:ABMI Site Records: 2007: none. 2008: 1618. 2009: 1584, 82H-1. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: BC, [AB: Writing-on-Stone Provincial Park; UT, CO, NV,AZ, CA, WA, OR]Images:Ecology: This mite has been collected from a variety of litter types in Western North America.Literature: Woolley & Higgins (1968); Behan-Pelletier (1987); Marshall et al. (1987).309

Almanac of Alberta Oribatida 2.3 13 January 2013Ametroproctus reticulatus (Aoki & Fujikawa, 1972)Also Known As: Coropoculia reticulatus Aoki & Fujikawa, 1972ABMI code/Common name: AMETRETDiagnostic characters: Dorsal ridge of pedotectum I well developed and reaching seta ex; 6pairs genital setae; femur III with 3 setae; notogaster with subreticulate sculpturing; welldeveloped humeral projection; dorso-sejugal furrow incomplete medially.Overview: subgenus Coropoculia. The Woolley & Higgins (1968) record from Cle Elum, WA,as A. oresbios is actually this species (Behan-Pelletier, 1987).Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 995, 1030, 1031,1231, 1261.DOC (1/2008): [+other] Distribution: BC, AB [Waterton Lakes National Park; Kananaskis; BanffNational Park; Jasper National Park]; [WA; Hokkaido, Japan (spruce forest)]Images:Ecology: This mite is known from moss and a variety of litter types at high elevations in WesternNorth America and Northern Japan.Literature: Aoki & Fujikawa (1972); Behan-Pelletier (1987); Marshall et al. (1987).Ametroproctus tuberculosus Behan-Pelletier, 1987Also Known As:ABMI code/Common name: AMETTUBDiagnostic characters: Dorsal ridge of pedotectum I short, not reaching seta ex; 4 pairs genitalsetae; femur III with 2 setae; notogaster tuberculateOverview: subgenus AmetroproctusBarcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB [Fortress Mountain (2400 m), Kananaskis; AthertonLakes National Park [2347 m]Images:310

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: The type series was collected from moss, lichens, and litter at high elevations in SWAlberta.Literature: Behan-Pelletier (1987).Scapheremaeus Berlese, l910 (ITIS 734258)Diagnostic characters: dorsoventrally flattened; lenticulus; often with marginal notogastralcarina.Also Known As:Type species: Cymbaeremaeus (Scapheremaeus) patella Berlese, 1910World species: ~88Comments: These mites are primarily arboreal on stems and trunks; and therefore, rare in ABMIcollections.Canadian species listed on DOC (bold = AB): Scapheremaeus palustris (Sellnick, 1924); S.parvula (Banks, 1909); Scapheremaeus sp.Scapheremaeus palustris (Sellnick, 1924) (ITIS 741223)Also Known As: Cymbaeremaeus (Scapheremaeus) palustris Sellnick, 1924ABMI code/Common name: SCAPPASDiagnostic characters: body length 440-480, dorsoventrally flattened, with brown rugosereticulateornamentation; monodactyl; bo short (50) with large (30) black club; le (15-20) atcorner of linear lamella-translamella; lenticulus oval (30-35 long), median notogastral setae(~25) acicular, marginal setae (15-20) somewhat thickened.Overview:Barcodes:ID Check: Determination by DEW based on Weigmann (2006); Gilyarov & Krivolutsky (1975).Similar taxa: Scapheremaeus parvula (parvulus?) (Banks, 1909) is smaller (

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Moser & Roton 1971); Gilyarov & Krivolutsky (1975); Marshall et al. (1987);Krivolutsky & Sidorchuk (2003); Weigmann (2006); Colloff (2009).Back to Table of ContentsLicneremaeoidea Grandjean, 1931(Back to Key to Brachypylina)Licnodamaeidae Grandjean, 1954Licnodamaeus Grandjean, 1931Diagnostic characters: small oribatid mites with a dense pustulate to reticulate cerotegument,notogaster flattened and with 5 pairs of setae, but no scalp; 2 pairs anal setae; 5 pairs ofgenital setae, sensillus expanded, spiculate-flabellate.Comments: A small (0.280 long) unidentified species in this genus has been reported from NSand CA, and we also have seen collections from the Yukon and grassland soil in Alberta(see Part II). Licnocepheus reticulatus Woolley, 1969 was described from Louisiana.Passalozetidae Grandjean, 1954Bipassalozetes Mihelčič, 1957Diagnostic characters: small, highly ornamented mites with lenticulus, but no pteromorphs;heterobidactyl.Also Known As: Passalozetes Grandjean, 1932Type species: Passalozetes (Bipassalozetes) permixtus World species: ~26Comments:Canadian species listed on DOC (bold = AB): Bipassalozetes californicus (Wallwork, 1972);Passalozetes sp.B33. Key to the species of Bipassalozetes in Alberta1. Cerotegument with ridge-like pattern; femur I with a single long and concave porose area (Fig.B33.1A) .................................................................................................................................. 2- Cerotegument with caltrop-like pattern; femur I with 3-5 sack-like porose areas(brachytracheae) (Fig. B33.1B, Fig. B33.2) ................................................................................................................................................. Bipassalozetes cf. intermedius (Mihelĉič, 1954)312

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B33.12. Cerotegumental pattern composed mostly of parallel plications; bo barbed in distal 2/3rds; 3pairs of large porose areas on notogaster (A4 minute or absent) ................................................................................................................... Bipassalozetes californicus (Wallwork, 1972)- Cerotegumental pattern composed of course, interconnecting ridges; bo simple; 4 pairs ofporose areas on notogaster ............................................................. Bipassalozetes sp. 2 DEWFigure B33.2313

Almanac of Alberta Oribatida 2.3 13 January 2013Bipassalozetes californicus (Wallwork, 1972)Also Known As: Passalozetes californicus Wallwork, 1972ABMI code/Common name: BIPACALDiagnostic characters: 312-317; heterobidactyl; plicate cerotegument, transverse posterior togenital plate 2/3rds from edge of ventral plate, longitudinal posteriorly; im long, dorsal andmedial of A1; 1 pair aggenital setae; bo setiform with distal 2/3rds barbed; femur I with onelong, concave porose area.Overview: Smaller than California specimens, but otherwise good agreement.Barcodes:ID Check: CNC specimens confirmed by DEW based on Wallwork (1972).Similar taxa: B. linearis has 2 pairs of aggenital setae; bo +/- fusiformABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: CNC: BC, AB [One-Four Res. Sta., Lost River]Images:Ecology: Collected from cushion vegetation in shortgrass prairie.Literature: Wallwork (1972); Marshall et al. (1987).**Bipassalozetes cf intermedius (Mihelĉič, 1954)Also Known As: Passalozetes intermedius MihelPassalozetes variatepictus 1956ABMI code/Common name: BIPAINTDiagnostic characters: ventral length 350-360; heterobidactyl, claws with basal sheaths; caltroplikecerotegumental pattern; porose areas small, A3 difficult to see; femora I-IV with 3-5sack-like porose areas (brachytracheae); im anterior and mediad to tiny A1; bo long,setiform, sparsely barbed.Overview: The genus name Bipassalozetes refers to the presence of two claws on the tarsi asopposed to the three claws that are present in members of the other genus in the familyPassalozetidae, Passalozetes. This is a small mite with adults measuring scarcely more than1/3 rd of a millimetre in length. The complex, ornate cuticle is formed from thecerotegument, a layer of wax and proteins, and provides protection from dehydration and, inthis case, probably also acts as a hydrofuge layer to prevent wetting.314Passalozetid mites inhabit dry habitats or dry microhabitats within more mesic areas. Thisspecies was originally described from a Formica ant nest at a pine log in Europe and isknown to inhabit dry meadows and heathlands. In Alberta, it has been collected from opengrassy south-facing slopes in aspen woodland near Elk Island National Park and from openforests in the Cypress Hills. In the Yukon, this mite has been collected from open areasalong the Klondike Highway. Gut contents indicate that B. intermedius feeds on dark fungalhyphae and spores.

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: Determination by DEW & VBP (April 2008) based on Gilyarov & Krivolutsky(1975), Weigmann (2006), (MihelSimilar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: 530, 1192 (residuals). 2010: none. 2011:none.DOC (1/2008): [+other] Distribution: [AB (Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444); Kinsella: 13 June 2007, 13 April 2008); CNC: AB (CypressHills); YT (Klondike Highway)]Images: SEM (MP)Ecology: This is a mite of dry habitats or dry microhabitats within more mesic areas (e.g. opensouth-facing slopes in aspen woodland) and was described from a Formica nest at a pinelog. Gut contents contain dark fungal hyphae and spores.Literature: MihelMarshall et al. (1987).**Bipassalozetes sp. 2 DEWAlso Known As:ABMI code/Common name: BIPARUGDiagnostic characters: 350 long; bidactyl; coarse interconnecting ridges in cerotegumentalpattern; 4 pairs of notogastral porose areas visible; im anterior and mediad A1; femur I withone long, concave porose area; bo setiform and smooth.Overview:Barcodes:ID Check: Determination by DEW & VBP (April 2008) based on Gilyarov & Krivolutsky(1975), Weigmann (2006), and (Mihel specimens.Similar taxa: This mite is near Passalozetes rugosus Sitnikova, 1975.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [CNC: Writing-on-Stone Provincial Park (Mamillariacactus); Waterton Lakes (buffalo dung)]Images:Ecology: dry habitatsLiterature: Sitnikova (1975); Marshall et al. (1987).315

Almanac of Alberta Oribatida 2.3 13 January 2013Scutoverticidae Grandjean, 1954Exochocepheus Woolley & Higgins, 1968Diagnostic characters:.Also Known As:Type species: Exochocepheus eremitus Woolley & Higgins, 1968World species: 7Comments:Canadian species listed on DOC (bold = AB): Exochocepheus sp. (BC)**Exochocepheus eremitus Woolley & Higgins 1968Also Known As:ABMI code/Common name: EXOCEREDiagnostic characters:.Overview:Barcodes:ID Check: Determination by DEW Woolley & Higgins (1968); Pfingstl et al. (2010).Similar taxa: The only known species of the genus in North America, this species somewhatresembles a large Tectocepheus.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 1218, 1482, 1561.2012: OG1558NW.DOC (1/2008): [+other] Distribution: [UT; CO; Exochocepheus sp. reported from BC]Images: SEM 1218, OG1558Ecology: A mite of dry, open habitats with grasses and sedges. Often with soil diatoms adheringto cerotegument including Hantzschia amphioxys and Pinnularia borealis.Literature: Woolley & Higgins (1968); Pfingstl et al. (2010).316Exochocepheus eremitus Woolley & Higgins, 1968

Almanac of Alberta Oribatida 2.3 13 January 2013Back to Table of ContentsPhenopelopoidea Petrunkevitch, 1955 (ITIS 733376)(Back to Key to Brachypylina)B34. Key to genera of Phenopelopoidea in Canada1. Lamellae separate, more or less parallel and not meeting along medial margins, typically witha distinct translamella in distal third of prodorsum and not deeply incised around insertion oflamellar seta; bothridia and bases of interlamellar setae covered by anterior notogastraltectum; notogaster with 1 (A1) to 4 pairs of minute porose areas (Fig. B34.1A) ............................................................................................................................................. Phenopelopidae (2)- Lamellae approximate along entire length and deeply incised around insertion of lamellar seta;anterior notogastral tectum less well developed, bothridia and bases of interlamellar setaevisible dorsally; notogastral porose areas absent (Fig. B34.1B) .......................................................................................................................... Unduloribates Balogh, 1943 (Unduloribatidae)Figure B34.12. Chelicerae pelopsiform (Fig. B34.2A) ........................................................................................ 3- Chelicerae normal (Fig. B34.2B) .............................................................. Propelops Jacot, 1937317Figure B34.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Interlamellar setae setiform, usually short, mostly covered by notogastral tectum (Fig. B34.3A)............................................................................................................ Peloptulus Berlese, 1908- Interlamellar setae well developed, phylliform, extending beyond notogastral tectum (Fig.B34.3B)................................................................................................... Eupelops Ewing, 1917Figure B34.3318Phenopelopidae Petrunkevitch, l955 (ITIS 733513)Eupelops Ewing, 1917 (ITIS 734282)Diagnostic characters: lenticulus distinct, cerotegument thick, blocky; chelicerae pelopsiform;in phylliform; pteromorphs movable.Also Known As: Pelops CL Koch, 1835-6; Allopelops Hammer, 1952; PhenopelopsPetrunkevitch, 1955Etymology – Pelops (dark eye), mythical ancient Greek king who conquered the Peloponnese;eu- good, true. The name probably refers to the prominent lenticulus.Type species: Pelops ureaceus CL Koch, 1839 [=Notaspis hirsutus Koch, 1844] (Marshall et al.1987; Weigmann 2006), Pelops ureaceus CL Koch, 1840 (Gilyarov & Krivolutsky 1975);Pelops hirsutus (Koch, 1844) [= Notaspis acromios Hermann, 1804] (Subías 2004)World species: 62

Almanac of Alberta Oribatida 2.3 13 January 2013Comments: Another messy mite genus with a history of synonymies, unclear type designations,and generally difficult to distinguish species (see Marshall et al. 1987). The species in thegenus can be divided into two groups based on the location of notogastral seta h3, eitherclosely adjacent to porose area A1 (e.g. Eupelops claviger (Berlese, 1916), curtipilus(Berlese, 1916) [=bilobus (Sellnick, 1928)], latipilosus (Ewing, 1909) [IL], occultus (CLKoch, 1835) [=nepotulus (Berlese, 1917], tardus (CL Koch, 1835) , and tortulosus (CLKoch, 1840)) and those with h3 in a submarginal position far removed from A1 (e.g.acromios (Hermann, 1804); E. hirtus (Berlese, 1916) [QC]; caucasicus Sitnikova, 1975);eximus Sitnikova, 1967; hygrophilus (Knülle, 1954); plicatus (CL Koch, 1836) [AK, VA];septentrionalis (Trägårdh, 1910) [AK, Canada]; silvestris (Jacot, 1937) [NC]; strenzkei(Knülle, 1954); subuliger (Berlese, 1916) [=longifissus Willmann, 1951]; and uraceus (CLKoch, 1840)). Species in blue font are known from North America, as are Eupelopsbrevipilus (Jacot, 1937) [NC], simplex franconia (Jacot, 1939) [NH], terminalis (Banks,1909) [ON, NC?], and tibialis (Banks, 1910) [VA] (Marshall et al. 1987).Canadian species listed on DOC (bold = AB): Eupelops hirtus (Berlese, 1916); E. septentrionalis(Trägårdh, 1910); Eupelops sp.; E. terminalis (Banks, 1909)B35. Key to Eupelops in Alberta1. Porose area A1 closely bracketed by setae h3 and lp (or their alveoli if seta broken off);notogastral setae relatively long or short (Fig. B35.1A) ........................................................... 2- Porose area A1 with only one adjacent seta (lp), seta h3 in submarginal position; notogastralsetae relatively long (75-90); cerotegument with irregular oval to circular cells (Fig. B35.1B).............................................................................. Eupelops septentrionalis (Trägårdh, 1910)319Figure B35.1

Almanac of Alberta Oribatida 2.3 13 January 20132. Notogastral setae short and relatively fine (h3, lp ~25); cerotegument of fully sclerotized adultwith broad, densely micropunctate ridges surrounding coarse, fairly uniform, foveae (granularin teneral adults); anterior notogastral tectum depressed medially, appearing shallowlybilobed in dorsal view; 400-560 long (Fig. B35.2A) ............................... Eupelops sp. 3 DEW- Notogastral setae relatively long, thick and barbed; setae thickened, but not expanded distally,lp (113) about 1/3 rd longer than h3 (88) posterior setae h1 (120) on medial margin of A4, p1(95); cerotegument with coarse, uneven ridges and cells; anterior notogastral tectum straightto crenualte; 650 long (Fig. B35.2B, Fig. B35.3) ..................................... Eupelops sp. 2 DEWFigure B35.2Eupelops cf septentrionalis (Trägårdh, 1910) (ITIS 741461)Also Known As: Allopelops septentrionalis Trägårdh, 1910ABMI code/Common name: EUPESEPDiagnostic characters: ventral length 450-620, dark brown to black; notogastral setae (75-90)thick, peculate, slightly tapered distally; h3 displaced laterally, well removed from A1 andlp; in phylliform (170-180) +/- reaching tip of rostrum; bo (100-110) with peculate,fusiform club; heterotridactyl, lateral claws with ~90 o bend near base; cerotegument withirregular oval cells; anterior notogastral tectum more or less truncate medially.Overview: This species keys to the larger (631-700) Eupelops subuliger (Berlese, 1917) inGilyarov & Krivolutsky (1975), but the illustration shows a smaller, foveolate notogastralpattern and much larger interlamellar setae.Barcodes:320

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: cf. Determination by DEW based on Trägårdh (1910), Hammer (1952), Weigmann(2006).Similar taxa: Eupelops plicatus (CL Koch, 1835) [AK; Holarctic]; Eupelops hirtus (Berlese,1916) [QC; Palearctic]ABMI Site Records: 2007: 358, 618, 792, 1135. 2008: none. 2009: none. 2010: 1175; 1203;OG1352. 2010: 892, 1175, 1203, OG-1352-1. 2011: 242, 272, 302, 1106, 1137.DOC (1/2008): [+other] Distribution: AB, NU, NT, MB, QC, NF; [AK; Holarctic]Images:Ecology: A mite of mesophilous habitats, including peatlands (Behan-Pelletier-Bissett, 1994). Ina feeding study using a variety of fungi, a related species, Eupelops tortulosus, fed on abouthalf the species, but did not show a strong feeding preference (Schneider 2005).Literature: Hammer (1952); Gilyarov & Krivolutsky (1975); Norton & Behan-Pelletier (1986);Marshall et al. (1987); Weigmann (2006).*Eupelops sp. 2 DEW (RAM 99000019)321Figure B35.3Also Known As:ABMI code/Common name: EUPESP2Diagnostic characters: ventral length 650, notogastral cerotegument with coarse, uneven ridgesand cells; prodorsum and notogaster microtuberculate (low, rounded tubercles); porose areaA1 (oval, 7-8 across) closely bracketed by setae h3 and lp, setae thickened, barbed, anterior

Almanac of Alberta Oribatida 2.3 13 January 2013setae more or less pointed, c (55), la (100), lm (95) on medial margin of Aa (4 across), lp(113) about 1/3 rd longer than h3 (88); posterior setae blunt posterior setae h1 (120) onmedial margin of A3 (5 across), p1 (95); distance h1-h1 (93), p1-p1 (88).Overview: Eupelops sp. reported from MB, QC, NB, NS, NFBarcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975), Weigmann (2006).Similar taxa: The Holarctic Eupelops latipilosus (Ewing, 1909) is similar but has a larger porosearea A1, an h3 only half the length of lp, and notogastral setae that broaden towards the tip.The Palearctic Eupelops tortulosus (CL Koch, 1836) is also similar, but has a relativelylarge A1, notogastral setae thickened towards the tip, and a pattern of large cells in thecerotegument (body 620-795 long).ABMI Site Records: 2007: 649. 2008: none. 2009: none. 2010: none. 2011: 1138.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444)]Images: SEM (MP)Ecology:Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Norton & Behan-Pelletier(1986); Weigmann (2006).*Eupelops sp. 3 DEW (RAM 99000085)Also Known As:ABMI code/Common name: EUPESP3Diagnostic characters: ventral length 400-560, brown; notogastral setae short and relativelyfine, tapering; h3, lp bracket A1 (both ~25); anterior median notogastral tectum depressedmedially and in dorsal view appears to have a lobe over base of each interlamellar seta; invery large, with narrow stem and inflated middle, toothed distally; notogaster withmicrofoveolate cuticle, cerotegument with coarse micropunctate ridges surrounding evenlyspaced, oval foveae; tibia IV with one spinose seta and one normal seta on outer margin.Overview: This mite keys to Eupelops curtipilus (Berlese, 1917) in Weigmann (2006) and inGilyarov & Krivolutsky (1975) (or to Eupelops bilobus (Sellnick, 1928) which Weigmanntreats as a junior synonym of curtipilus; Subías (2004) considers curtipilus a juniorsynonym of sulcatus (Oudemans, 1914)). According to Weigmann (2006), E. curtipilus hasall notogastral setae very short (10-15); a slender sensillus with a strongly spined club; theanterior median notogastral tectum bilobed, sinuate, or truncate; rather small porose areaswith A1 a bit larger; and the outer margin of tibia IV with one spine and one normal seta.However, E. curtipilus is only known from Europe, it is a bit smaller (395-500) than theAlberta specimens, has smaller setae, and no mention is made of the distinctivecerotegumental pattern. Given its name, Eupelops brevipilus (Jacot, 1937), might also besimilar, but its description is too brief to make an identification.Barcodes:322

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975), Weigmann (2006).Similar taxa: Eupelops tortulosus (CL Koch, 1836)ABMI Site Records: 2007: none. 2008: 1224. 2009: none. 2010: none. 2011: 608, 984, 1438,OG-1054-1, OG-1122-1, OG-1283-1, OG-1338-1.DOC (1/2008): [+other] Distribution: Eupelops sp. reported from MB, QC, NB, NS, NFImages:Ecology:Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Norton & Behan-Pelletier(1986); Weigmann (2006).Peloptulus Berlese, 1908 (ITIS 734284)Diagnostic characters: lenticulus distinct, cerotegument thick, blocky; chelicerae pelopsiform;in setiform; pteromorphs movableAlso Known As:Etymology – Pelops (dark eye), mythical ancient Greek king who conquered the Peloponnese; -ulus (small)Type species: Pelops phaenotus Koch, 1844World species: 15; Peloptulus americanus (Ewing, 1907), Peloptulus laticuspidatus (Ewing,1909), and Peloptulus tanytrichosus Higgins & Woolley, 1972 are known from the USA.Comments:Canadian species listed on DOC (bold = AB): Peloptulus sp.B36. Key to North American Peloptulus1. Interlamellar seta short, not passing translamella; lamellar seta short, less than length of cusp;sensillus an elongate club extending to or past translamella (Fig. B36.1A) ............................. 2- Interlamellar seta passing translamella; lamellar seta longer than cusp; sensillus a strong,truncate club that does not reach the translamella; ventral length 466; IL (Fig. B36.1B) .............................................................................................. Peloptulus laticuspidatus (Ewing, 1909)323Figure B36.1

Almanac of Alberta Oribatida 2.3 13 January 20132. Interlamellar seta very short, mostly covered by notogastral tectum (Fig. B36.2A) .................. 3- Interlamellar setae well developed, extending beyond notogastral tectum, about reachingtranslamellar bridge; length 400; IL (Fig. B36.2B) ........ Peloptulus americanus (Ewing, 1907)Figure B36.23. Notogastral setae relatively short, c2 extending much less than 1/3 rd distance to la; lamellartips without dens or with lateral dens only; cerotegument smooth; ventral length >420 (Fig.B36.3A) ..................................................................................................................................... 4- Notogastral setae relatively long, c2 extending >1/3rd distance to la; lamellar tips notchedaround lamellar seta and with lateral and small medial dens; cerotegument composed ofraised irregular ridges; ventral length 375-445 (Fig. B36.3B) ............... Peloptulus sp. 1 DEWFigure B36.34. Lamellar tips with lateral dens, sensillus relatively short, just passing translamella; lamellarcusps subequal to lamellar base; Palearctic (Fig. B36.4A) ............................................................................................................................................... Peloptulus phaenotus (CL Koch, 1844)- Lamellar tips without dens, sensillus relatively long, extending well past translamella; lamellarcusps much shorter than lamellar base; ventral length 450; CO (Fig. B36.4B) ............................................................................................. Peloptulus tanytrichosus Higgins & Woolley, 1972324

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B36.4*Peloptulus sp. 1 DEW (RAM 99000042)Also Known As:ABMI code/Common name: PELOSP1; Common name: Grassland Little Dark-eyeDiagnostic characters: ventral length 380-450, dark brown, cerotegument with coarse,meandering ridges and depressions; notogaster microtuberculate, setae (30-45) somewhatthickened, densely spiculate; bo (85-90) only slightly expanded distally; lm (30-35)posterior to Aa; lp medial, A1 anteriad h3, both displaced laterally; h1 closely inserted,thicker than other setae; in (15) very small, mostly covered by anterior notogastral tectum;tutorium deeply incised to accommodate rostral seta.Overview: This species is common in southern-montane Alberta.Barcodes: 1191 (658 x 2); 1637 (403, 644, 658)ID Check: Determination by DEW based on Weigmann (2006, 2008). 1254 SW checked byVBP April 2008.Similar taxa: This species is somewhat intermediate between Peloptulus tanytrichosus Higgins& Woolley, 1972 [CO] and the Palearctic P. phaenotus (CL Koch, 1844).ABMI Site Records: 2007: 856, 1150, 1254, 1525. 2008: 899, 1116, 1190, 1191, 1222, 1223,1224, 1380, 1404, 1435, 1436, 1618, 1637. 2009: 15, 539, 1567, 72L-1, 72L2-2, 72L-3,72L-4, 772L-5, 72M-1, 72M-2, 72M-3, 72M-5, 72M-7, 82H-1, 82H-4, 82H-5. 2010: 923,925, 1177, 1451, 1471, 1472, 1500, 1538, 1653. 2011: 958, 984, 990, 1017, 1018, 1023,1050, 1051, 1092, 1093, 1094, 1125, 1157, 1184, 1218, 1247, 1275, 1304, 1332, 1333,1334, 1437, 1438, 1439, 1459, 1461, 1480, OG-1054-1, OG-1082-1, OG-1090-1, OG-1122-1, OG-1160-1, OG-1190-1, OG-1218-1, OG-1248-1, OG-1282-1, OG-1283-1, OG-1331-1, OG-1334-1, OG-1338-1.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444)]; Peloptulus sp. reported from ONImages: SEM (1254, 72M-3, 82H5)Ecology: This mite appears to be an undescribed species. It is bisexual and gravid females carryup to 8 eggs. Gut contents include brown fungal hyphae and spores.Literature: Marshall et al. (1987); Norton & Behan-Pelletier (1986); Weigmann (2006, 2008).325

Almanac of Alberta Oribatida 2.3 13 January 2013Propelops Jacot, 1937 (ITIS 734285)Diagnostic characters: lenticulus distinct, cerotegument thick, blocky; chelicerae normal;lamellae with cusps (may be short) and translamella.Also Known As: Hammeria Sellnick, 1944Etymology – Pelops (dark eye), mythical ancient Greek king who conquered the Peloponnese;pro – first, before, frontType species: Propelops pinicus Jacot, 1937World species: 8Comments: Two species, the northern-boreal P. alaskensis and the southern-montane P.canadensis are common in Alberta. Other species may also be present.Canadian species listed on DOC (bold = AB): Propelops canadensis (Hammer, 1952); P.groenlandicus (Sellnick, 1944); P. pinicus Jacot, 1937; Propelops sp.B37. Key to adults of Propelops of the World1. Interlamellar seta (in) very short, not reaching half distance to translamella, which is veryshort, lamellar cusps nearly touching (Fig. B37.1A) ................................................................. 2- Interlamellar seta (in) reaching or passing translamella, which is well developed, lamellar cuspsdistant from one another (Fig. B37.1B) ..................................................................................... 4Figure B37.12. Apophysis on genu I bearing a short, spinose seta; lamellar cusps relatively short, lengthsubequal to or shorter than width; interlamellar region bell-shaped (Fig. B37.2A) .................. 3- Apophysis on genu I bearing a short, simple seta; lamellar cusps longer than wide;interlamellar region angular, subtrapezoidal; body 453 x 280; Sakhalin (Fig. B37.2B) .................................................................................................... Propelops pacificus Krivolutsky, 1971326

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B37.23. Lamellar cusps about as long as wide; genu I with 2 barbed setae and 1 spinose seta onapophysis (+solenidion); body 465-480 long x 330-340; AB (Fig. B37.3A) .............................................................................................................................................. Propelops sp. 3 DEW- Lamellar cusps short; genu I apparently with 2 simple setae and 1 spinose seta on apophysis;body 462 x 308; AK, NWT, MB, Palearctic (Fig. B37.3B) .......................................................................................................................................... Propelops groenlandicus (Sellnick, 1944)Figure B37.3327

Almanac of Alberta Oribatida 2.3 13 January 20134. Cusps shorter than interlamellar region; porose areas all present (and small): Aa near seta lm,A2 near h2, A3 near h3, A1 bracketed by setae h3 and lp; females >430 long (Fig. B37.4A) ...................................................................................................................................................... 5- Cusps about as long or longer than interlamellar region (base in to translamella); porose areasAa, A2, A3 absent, A1 small, bracketed by setae h3 and lp; smaller mites, body 370-430 long(Fig. B37.4B) ................................................ Propelops minnesotensis (Ewing, 1913) MN, NY(Figs. B37.4C, B37.7) .................................... Propelops alaskensis (Hammer, 1955) AK, ABFigure B37.45. Interlamellar seta in projects beyond lamellar cusps (Fig. B37.5A) ........................................... 6- Interlamellar seta ends before tip of cusps; OR (Fig. B37.5B) ................................................................................................................................................ Propelops monticolus (Ewing, 1918)Figure B37.56. Setae of h-series cylindrical to narrowly clavate ......................................................................... 7- Setae of h-series very broad, flattened, leaf-like; FL, VA, NC, BC (Man.?) ...................................................................................................................................... Propelops pinicus Jacot, 1937328

Almanac of Alberta Oribatida 2.3 13 January 20137. Integument pitted with small foveae; bo an elongate club; interlamellar region trapezoidal;setae h1 bushy, approaching length of distance between insertions; AK, AB, NWT, NU, YT,ON, NF, CA, VA, Palearctic (Fig. B37.6A) ............... Propelops canadensis (Hammer, 1952)- Integument granular; bo truncate club; interlamellar region conical; setae h1 short and widelyspaced, Palearctic (Fig. B37.6B) .................................... Propelops rossica (Shaldybina, 1971)Figure B37.6329Figure B37.7

Almanac of Alberta Oribatida 2.3 13 January 2013**Propelops alaskensis (Hammer, 1955) (ITIS 741503)Also Known As: Hammeria alaskensis Hammer, 1955ABMI code/Common name: PROPALA; Alaskan Dark-eyeDiagnostic characters: body 370-430 long; notogastral integument micropunctate, porose areasAa, A2, A3 absent, A1 small, bracketed by setae h3 and lp; interlamellar seta (in) reachingor passing translamella, which is well developed; lamellar cusps distant from one another,cusps about as long or longer than interlamellar region (base in to translamella).Overview: The Alberta collections are the first Canadian records for this species, originallydescribed from Alaska. This is a small (0.37-0.43 mm long) brown mite with thick, blockycerotegument; the lenticulus is not distinct and only porose area A1 is expressed. The miteis common throughout the boreal forest from the northeastern corner of the Province (on theCanadian Shield) and south beyond Edmonton. DNA barcode analysis indicates a fairlyhomogenous population. Further south and in the Rocky Mountains, except at a few sites inthe Foothills, Propelops alaskensis is replaced by P. canadensis.Barcodes: 344 (658 x 2), 345 (392, 640), 413 (658 x 3), 473 (414), 720 (657, 658 x 9), 975 (658x 2), 1041 (658 x 2), BOG3 (658 x 6), FM06 (658 x 2), SL12 (658 x 2), UPL2 (658 x 2)ID Check: Determination by DEW based on Hammer (1952, 1955), Walter (in prep.). 358 SWchecked by VBP April 2008.Similar taxa: Propelops minnesotensis (Ewing, 1913) MN, NY. This species is currentlyindistinguishable from P. minnisotensis and may be a junior synonym of that species.Specimen from 1402 was originally misidentified as P. canadensis.ABMI Site Records: 2007: 216, 248, 330, 358, 359, 360, 389, 484, 512, 514, 515, 543, 584, 585,586, 599, 601, 616, 617, 618, 631, 632, 649, 664, 721, 791, 792, 793, 825, 857, 1068, 1070,1102, BOG6, BOG7, UPL4, UPL5, UPL6, UPL7; 2008: 316, 343, 344, 345, 373, 375, 412,413, 414 (slide missing?), 443, 444, 473, 688, 690, 719, 720, 751, 752, 867, 868, 899, 932,933, 974, 975, 976, 1041, 1116, 1402, BOG3, BOG4, FMO4, FM06, PRO3, PRO4, SL12,SL13, SL21, UPL1, UPL2, UPL3. 2009: 1, 15, 32, 33, 34, 498, 499, 528, 530, 537, 538,539, 559, 561, 569, 697, 728, 759, 760, 881, 882, 883, 914, 916, 1510. 2010: 151, 325, 353,354, 384, 875, 877, 890, 892, 1035, 1036, 1169, 1176, 1207, 1239, 1239, 1443, ALPAC-1,ALPAC-2, ALPAC-4, ALPAC-5, ALPAC-8, ALPAC-9, ALPAC-10, ALPAC-11, ALPAC-12, ALPAC-13, ALPAC-14, ALPAC-15, OG-976-1, OG-1005-1, OG-1069-1, OG-1171-2.2011: 64, 65, 91, 93, 121, 122, 362, 391, 392, 481, 482, 672, 962, 963, 964, 969, 995, 1002,1024, 1056, 1126, 1136, 1137, 1138, A477, A602-1, A608-2, A608-3, A635-1, A637-2,A692-1, A7, A757-1, A757-2, A761-1, A761-3, OG-1212-1. 2011: 64, 65, 91, 93, 121, 122,362, 391, 392, 481, 482, 482, 672, 962, 963, 964, 969, 995, 1002, 1024, 1056, 1126, 1136,1137, 1138, A477, A602-1, A608-2, A635-1, A637-2, A692-1, A7, A757-1, A757-2, A761-1, A761-3, OG-1212-1.DOC (1/2008): [+other] Distribution: none [AK; Moose Pasture Research Site 8 km W Chipman,AB (53.656667, -112.759444)]Images: SEM (359)Ecology: Bisexual: gravid females carry up to 4 large eggs. Gut contents include brown andhyaline fungal hyphae and spores, and the cerotegument often has fungal material stuck to330

Almanac of Alberta Oribatida 2.3 13 January 2013it. This is the dominant species of Propelops in the Boreal Forest and extends southward tobelow the latitude of Edmonton.Literature: Krivolutsky (1971); Gilyarov & Krivolutsky (1975); Hammer (1955); Norton &Behan-Pelletier (1986); Marshall et al. (1987); RAN (unpublished).Propelops canadensis (Hammer, 1952) (ITIS 741504)Also Known As: Hammeria canadensis Hammer, 1952ABMI code/Common name: PROPCAN – Canadian Dark-eyeDiagnostic characters: interlamellar seta (in) passing translamella, which is well developed,lamellar cusps distant from one another; integument pitted with small foveae; bo anelongate club; interlamellar region trapezoidal; setae h1 bushy, approaching length ofdistance between insertions.Overview: Propelops canadensis is a brown mite with a distinct lenticulus, blocky cerotegument,and small, but distinct notogastral porose areas. This species is a somewhat larger (femalesare usually >0.43 mm in length) than P. alaskensis and has a montane and southerndistribution in Alberta. Outside Alberta, P. canadensis is known from the Russian Far East,California, and YT, NU, NT, ON, NF in Canada. DNA barcoding indicates a great deal ofgenetic diversity among populations of P. canadensis in Alberta which may indicate thatAlberta was colonized from several sources after the glaciers retreated or, perhaps, a siblingspecies complex.Barcodes: 1116 (658 x 11); 1119 (658); 1618 (658 x 2); 1619 (658 x 5)ID Check: Determination by DEW based on Hammer (1952, 1955); Walter (in prep.). A malespecimen from 1529 SW has short, rather leaf-like setae.Similar taxa: Propelops pinicus Jacot, 1937 from the South-eastern USA, BC, and possiblyManitoba has leaf-like h-series setae. Propelops alaskensis is smaller, lacks a distinctlenticulus, has a truncate and toothed rostrum (vs rounded in P. canadensis), and has lost allbut the A1 notogastral porose areas. Propelops rossica (Shaldybina, 1971) has a conicalinterlamellar region and short, widely spaced h1 setae.ABMI Site Records: 2007: 1118, 1133, 1252, 1526, 1601, 1602, 1620. 2008: 1116, 1191, 1192,1404, 1434, 1618, 1619, 1635, 1637. 2009: 1305, 1512, 1529, 1530, 1531, 1550, 1567,1584, 1627, 72M-1, 72M-3, 72M-5, 82H-2, 82H-3, 82H-4, 82H-5. 2010: 892, 1428, 1451,1472, 1500, 1652, 1653. 2011: 958, 990, 1031, 1057, 1058, 1093, 1125, 1126, 1157, 1158,1159, 1218, 1247, 1276, 1332, 1438, 1621, OG-1160-1, OG-1218-1, OG-1248-1, OG-1282-1, OG-1331-1, OG-1640. 2011: 958, 990, 1031, 1057, 1058, 1093, 1125, 1126, 1157,1158, 1159, 1218, 1247, 1276, 1332, 1438, 1621, OG-1160-1, OG-1218-1, OG-1248-1,OG-1283-1, OG-1331-1, OG-1640, OG-1248-1.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, ON, NF; [CA; Holarctic]Images: SEM (1601, 82H5)Ecology: This mite was described from the Yukon, but occurs across Canada and extends furthersouth into the USA. It is common in Alberta south of Edmonton and in the Rocky331

Almanac of Alberta Oribatida 2.3 13 January 2013Mountains. The mite is bisexual and gravid females can carry at least three large eggs. Gutcontents include brown fungal hyphae, arthroconidia, and coarse organic material.Literature: Hammer (1952); Gilyarov & Krivolutsky (1975); Norton & Behan-Pelletier (1986);Marshall et al. (1987); RAN (unpublished)Propelops sp. 3 DEW (xxxxxx)Also Known As:ABMI code/Common name: PROPCAN – Canadian Dark-eyeDiagnostic characters: interlamellar seta (in) short, lamellae well developed, lamellar cuspsclose to each other; bo a club; interlamellar region bell-shaped;Overview:Barcodes:ID Check: Determination by DEW based on Hammer (1952, 1955); Walter (in prep.).Similar taxa: Propelops groenlandicus (Sellnick, 1944) appears to have much shorter lamellarcusps and a narrower body. Propelops pacificus Krivolutsky, 1971, has longer lamellarcusps and simple setae on genu I.ABMI Site Records: 2007: none. 2008:none. 2009: none. 2010: none. 2011: 1029, 1231, 1232,1260, 1261, 1262 .DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, ON, NF; [CA; Holarctic]Images: SEM (1601, 82H5)Ecology:Literature: Hammer (1952); Gilyarov & Krivolutsky (1975); Norton & Behan-Pelletier (1986);Marshall et al. (1987); RAN (unpublished)Back to Table of ContentsUnduloribatidae Kunst, 1971 (ITIS 733514)Unduloribates Balogh, 1943 (ITIS 734287)Diagnostic characters: lenticulus distinct, cerotegument thick, blocky; chelicerae normal;lamellae very broad, meeting medially.Also Known As:Type species: Sphaerozetes (Tectoribates) undulatus Berlese, 1914World species: 4Comments: See also Koreoribates foliatus Choi, 1994.Canadian species listed on DOC (bold = AB): Unduloribates sp.332

Almanac of Alberta Oribatida 2.3 13 January 2013***Unduloribates dianae Behan-Pelletier & Walter, 2009 (RAM 99000055)Also Known As: Unduloribates sp. 1 DEWABMI code/Common name: UNDODIA; Common Name: Diana’s Undulate-RoamerDiagnostic characters: ventral length 600-700; lamellae with deep notch; tutorium with long,tapering cusp; notogastral setae (32-38) thick, straight, speculate; bo (60-65) with oboval,spiculate club; in short, obcuneate, densely spiculate; 6 pairs genital setae; epimere notneotrichous (2:2:3?)Overview: Uncommon, but sometimes abundant species in central-east Alberta.Barcodes: 444 (658)ID Check: Determination based on Behan-Pelletier & Walter (2009). BOG7 NE confirmed asnew species by VBP April 2008; 331 SW (3 mites), 374 SW 23, 444 NW 61 checked byVBP October 2008.Similar taxa: Unduloribates undulatus (Berlese, 1914) (Europe: 9 pairs genital setae; lamellaewith shallow notch; bo strongly expanded distally; in short, acuminate); U. hebes Aoki(Himalayas: 9 pairs genital setae; lamellar cusps without notches; bo strongly expandeddistally; in short acuminate; epimere 2:2:2:2); U. medusa Piffl, 1972 (Nepal: 9 genital setae;bo strongly expanded distally; epimere 3:2:7:7 – long, curled III setae); U. brevisetosisNübel-Reidelbach &Woas, 1992 (Himalayas, in and notogastral setae very short, 9 pairsgenital setae).ABMI Site Records: 2007: 330, 331, BOG7. 2008: 374, 443, 444, 719, 751, BOG3, FM07.2009: 1, 530, 570. 2010: 323, 325, 383, 384. 2011: 242, 272, 302, 422, 452, 483, 968,A608-2, A7, A761-4.DOC (1/2008): [+other] Distribution: Unduloribates sp. NS [in CNC QC (Mont Albert), NS(Cape Breton)].Images: SEM (331, 444)Ecology: Bisexual; gravid females can carry at least 4 eggs with a striate to reticulateornamentation. Gut contents are difficult to examine in these heavily sclerotized mites witha thick cerotegument, but in dissected specimens granular material and possible mossspores have been observed. Fungal spores often adhere to the cerotegument.Literature: Marshall et al. (1987); Behan-Pelletier & Walter (2009).Back to Table of Contents333

Almanac of Alberta Oribatida 2.3 13 January 2013Achipterioidea Thor, 1929 (ITIS 733379)(Back to Key to Brachypylina)Achipteriidae Thor, 1929 (ITIS 733519)B38. Key to genera of Achipteriidae in Canada1. Pteromorph with long, knife-like projection anteriorly (Fig. B38.1A) ....................................... 2- Pteromorph without long projection anteriorly (Fig. B38.1B)..................................................... 4334Figure B38.1

Almanac of Alberta Oribatida 2.3 13 January 20132. Notogaster with 4 pairs of porose areas (Fig. B38.2A) ................ Parachipteria Hammer, 1952- Notogaster with 4 pairs of saccules (Fig. B38.2B) ...................................................................... 3Figure B38.23. Saccules on notogaster evident; mentum without tectum (Fig. B38.3A) ................................................................. Achipteria Berlese, 1885- Saccules on notogaster reduced to pores; mentum with partial tectum covering base of genae(Fig. B38.3B) ................................................................................ Pseudachipteria Travé, 1969335Figure B38.3

Almanac of Alberta Oribatida 2.3 13 January 20134. Notogaster with porose areas; interlamellar area usually subtriangular in shape with broadlamellae and approximate cusps that taper to an acuminate lateral margin (but seeAnachipteria geminus Lindo et al. 2008) (Fig. B38.4A) ........................................................... 5- Notogaster with saccules (often obscure); interlamellar area subtrapezoidal in shape; lamellaevery broad, widely separated at tip, and truncate distally (Fig. B38.4B) ............................................................................................................................................ Dentachipteria Nevin, 1974Figure B38.45. Cuticle micropunctate/microtuberculate; small (450 long), red-brown mites (Fig. B38.5B) ..................................................................................................................................... Anachipteria Grandjean, 1935336Figure B38.5

Almanac of Alberta Oribatida 2.3 13 January 2013Achipteria Berlese, 1885 (ITIS 734306)Diagnostic characters: achipteriids with notogastral saccules and spurs on pteromorphsAlso Known As: Achipteria (Achipteria) (ITIS 734818)Type species: Acarus coleoptratus Linnaeus, 1758 (Oribates nicoletii Berlese, 1883)World species: ~30Comments: These mites tend to be large, very dark, and subspherical and make poor slides.Canadian species listed on DOC (bold = AB): Achipteria catskillensis Nevin, 1977; A. clarenceiNevin, 1977; A. coleoptrata (Linnaeus, 1758); Achipteria sp.B39. Key to Achipteria in Canada1. Lenticulus present; sensillus barbed (Fig. B39.1A) .................................................................... 2- Lenticulus absent, 407-462 long, sensillus and interlamellar setae smooth, bo directed mediad,saccules well developed; c2 and la 2x lm; NS (Fig. B39.1B) .............................................................................................................................. Achipteria catskillensis Nevin, 1977Figure B39.12. Dull reddish brown to black with pebbly texture; interlamellar seta relatively short (110-130);notogastral setae distinct; saccules indistinct (Fig. B39.2A) ............................................ 3- Smooth, shiny brown to black; interlamellar seta longer (190-200); all notogastral setae fine,minute; saccules well developed (Fig. B39.2B) ........................................................................................................................................... Achipteria coleoptrata (Linnaeus, 1758)337

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B39.23. Lamellar and interlamellar setae barbed; length 540-650 (Fig. B39.3A) . Achipteria sp. 1 DEW- Lamellar and interlamellar setae smooth; 635-693 long; NS (Fig. B39.3B) ....................................................................................................................... Achipteria clarencei Nevin, 1977Figure B39.3Achipteria coleoptrata (Linnaeus, 1758) (ITIS 741627)Also Known As: Acarus coleoptratus Linnaeus, 1758ABMI code/Common name: ACHICOL/741627Diagnostic characters: length 600-750, brown to shiny black; lamella (250) oblique, acuminate,le (~115-120) reaching tooth, but inserted well back from tip; bo (120-125) with long,narrow head; in (190-200) barbed, not reaching tip of lamella; spur of pteromorph (100);338

Almanac of Alberta Oribatida 2.3 13 January 2013tutorium with long (110-115), broad, knife-like cusp; ro (115) tapering, densely barbed; allnotogastral setae short to minute (12-25) and fine; saccules well developed; pedotectum Iwithout tooth.Overview: A large (0.600-0.750 mm long) and shiny, dark brown mite with a distinct lenticulus,knife-like projections of the pteromorphs, and very fine notogastral setae. To date thisHolarctic mite has been found only in the northern half of the Province, but it also has beenreported from Alaska, Manitoba, and a subspecies (Achipteria coleoptrata ewingi Berlese,l910) from Florida.Barcodes:ID Check: Determination by DEW based on Hammer (1952); Weigmann (2006). 218 SEchecked by VBP April 2008.Similar taxa: Achipteria sellnicki Hammen, 1952 [Europe], A. oudemansi Hammen, 1952[Europe]. Achipteria coleoptrata is the only North American species with all notogastralsetae short (usually at least the humeral setae ta, ti are longer), shiny cuticle, a knife-likelamellar cusp, and acute lamellar tips.ABMI Site Records: 2007: 218, 617, 823, UPL5. 2008: 316, 374, 689, BOG2, SL10. 2009: 14,506, 881, 882, 914, 916. 2010: 208, 1170, 1142, OG-1210-2. 2011. 63, 608, 1024, OG-1331-1.DOC (1/2008): [+other] Distribution: AB, MB; [AK, Holarctic, Moose Pasture]Images:Ecology: A bisexual mite commonly found in rich fens with dwarf birch, willow, sedge, grassunderstory and other peatlands (Behan-Pelletier-Bissett, 1994). Alberta specimens have gutcontents consisting mostly of coarse granular material suggesting that they have beenfeeding on decomposing vegetation, but some fungal hyphae and spores are visible as wellas apparent moss spores. Schuster (1956) classified this mite as a microphytophage, andSchneider et al.’s (2004) stable isotope data suggested litter-feeding, but Schneider (2005)found a strong preference for dark pigmented fungi like Alternaria and Urocladium.Schneider (2005) placed this mite in the primary decomposer feeding guild (i.e. feedsmostly on litter). This mite was reported as occurring in the hair of small mammals inSlovakia, a possible means of local dispersal, by Miko & Stanko (1991).Literature: Hammer (1952); Marshall et al. (1987); Weigmann (2006).***Achipteria sp. 1 DEW (RAM 99000001)Also Known As:ABMI code/Common name: ACHISP1Diagnostic characters: ventral length 540-650, dull (from cerotegument) reddish brown;cerotegument with a pebbly, granular texture; lamellae very broad, without distinct lateraltooth, anterior margin curved, +/-butter-knife shape, le (75-80) short, barbed, closelyinserted on underside of lamella about ~1/3 rd the distance from the tip; bo (110-115) withnarrow, subspatulate club covered in minute barbs; in (110-130) relatively short, insertednear base of lamella and reaching only 2/3rds along lamella; ta, te (40-45), other notogastral339

Almanac of Alberta Oribatida 2.3 13 January 2013setae ~25; pedotectum I lineate, rounded, without teeth; tutorium with short (25), blade-likecusp; margin of pteromorph with distal tooth, spur (125) broad, knife-like; ventral shieldspunctate; saccules indistinct, Sa? best developed (also very small ~porose area in alarregion); rostrum with mucro.Overview: This is a very common and often abundant mite in central and northern Alberta, butapparently represents an undescribed species. DNA barcoding results to date indicate arelatively homogenous population. Adults are relatively large mites (0.54-0.65 mm long)reddish brown mites covered in a dull, granular cerotegument and with a lenticulus andknife-like projections of the pteromorphs.Barcodes: 867 (658 x 3); 900SE (658, 658); 975SE (392, 602, 658); MP (398)ID Check: Determination by DEW based on Hammer (1952), Weigmann (2006), Gilyarov &Krivolutsky (1975). 857 SW checked by VBP April 2008; 868 NW 37, 1353 SE 19 checkedby VBP October 2008.Similar taxa: Most similar to A. clarencei. Also see Pseudachipteria magnus (Sellnick, 1928); A.verrucosa Ryabinin, 1974; A. clarencei Nevin, 1977; Parachipteria punctata (Nicolet,1855)ABMI Site Records: 2007: 330, 358, 359, 388, 389, 512, 543, 545, 574, 600, 601, 601, 601, 616,617, 631, 632, 664, 791, 792, 793, 825, 857, BOG6, BOG7, UPL4, UPL5, UPL6, UPL7,UPL9. 2008: 688, 689, 690, 719, 720, 721, 866, 867, 868, 899, 900, 974, 975, 976, 1041,1116, 1353, 1354, 1378, BOG1, BOG2, BOG3, BOG4, FM04, FM06, PRO4, SL12, SL13,SL21, UPL1, UPL2, UPL3. 2009: 32, 497, 499, 507, 508, 530, 537, 538, 539, 561, 568,569, 570, 759, 760, 881, 883, 916, 1491. 2010: 151, 875, 890, 892, 1035, 1142, 1175, 1177,1207, 1208, 1209, 1237, 1239, ALPAC-10, ALPAC-11, ALPAC-12, ALPAC-13, ALPAC-14, ALPAC-16, ALPAC-2, ALPAC-4, ALPAC-5, ALPAC-8, ALPAC-9, OG-1208-1, OG-1325-1, OG-976-1. 2011: 272, 452, 482, 672, 968, 1018, 1024, 1105, 1106, 1136, 1137,1138, 1238, A477, A602-1, A608-3, A635-1, A637-1, A637-2, A692-1, A692-2, A7, A761-2, A761-3, OG-1212-1.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB,Narrow Lake, AB 54°35’N, 113°37’W] Achipteria sp. reported from BC, MB, ON, QC, NBImages: SEM (MP, 867)Ecology: Bisexual: one dissected female carried 6 eggs. The heavy cuticle obscures internalmaterial, but gut contents include brown fungal hyphae, dark granular material, and sheetlikeplant(?) material.Literature: Marshall et al. (1987); Weigmann (2006).Anachipteria Grandjean, 1932 (ITIS 734307)Diagnostic characters: cuticle shiny; lenticulus diffuse; pteromorphs without knife-likeprojections; notogaster usually with porose areas (rarely with saccules).Also Known As:Type species: Anachipteria deficiens Grandjean, 1932340

Almanac of Alberta Oribatida 2.3 13 January 2013World species: 16Comments: These mites are very dark, subspherical and make poor slides. Most describedspecies have broad, adjacent lamellae and notogastral porose areas and resembleParachipteria species without knife-like projections from the pteromorphs. However,recently described species from tree canopies in British Columbia (Anachipteria geminusLindo et al., 2008) and New York (Anachipteria sacculifera Root et al., 2008) are deviant.Canadian species listed on DOC (bold = AB): Anachipteria australoides Jacot, 1938; A. howardi(Berlese, 1908); Anachipteria sp. [NB: Also Anachipteria acuta (Ewing, 1918),Anachipteria magnilamellata (Ewing, 1909) and Anachipteria geminus sp. nov. Lindo etal., 2008 and reported by Lindo 2004-2007.]B40. Key to Anachipteria of Alberta1. Most notogastral setae (including lm, lp, h2-3) short (h2< 30 long); only c2, la may berelatively long; sensillus elongate, clavolanceolate; notogastral porose areas normallydeveloped; ventral surface of pteromorphs without concentric vein-like pattern (Fig. B40.1A)................................................................................................................................................... 2- Most notogastral setae (including c2, la, lm, lp, h2-3) relatively long (>45), subequal; sensillusshort and sub-capitate; porose areas very small (

Almanac of Alberta Oribatida 2.3 13 January 20132. Anterior notogastral setae relatively long (c2 ~35-42, la ~20-30); notogastral porose areas Aausually subcircular and relatively small (Aa 10-22); ventral length 420-540 (Fig. B40.2A) ........................................................................................ Anachipteria cf howardi (Berlese, 1908)- Antero-lateral notogastral setae short (c2, la ~10-17); notogastral porose area Aa relativelylarge, especially in female (25-35), usually oval or irregular; ventral length 500-570 (Fig.B40.2B)............................................................................................... Anachipteria sp. 1 DEWAnachipteria acuta (Ewing, 1918)Figure B40.2Also Known As: Oribatella acuta (Ewing, 1918)ABMI code/Common name: ANACACUDiagnostic characters: ventral length 556-670, dark chestnut-brown; bo short with distinct club;notogastral setae all long; porose areas minute, Aa and A1 ~2-3 times the diameter of asetal alveolus; A2-3 simple pores or absent; ventral surface of pteromorph with strong,veins in concentric pattern.Overview: First record for Alberta is in Lindo et al. (2008).Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [AB, BC, OR in Lindo et al. (2008)]342

Almanac of Alberta Oribatida 2.3 13 January 2013Images: SEM (MP)Ecology:Literature: Woolley (1958); Marshall et al. (1987); Norton & Kethley (1989); Lindo et al.(2008).*Anachipteria cf howardi (Berlese, 1908) (ITIS 741659)Also Known As: Sphaerozetes howardi Berlese, 1908; Anachipteria latitecta(-us) (Berlese,1908); Anachipteria corpuscula (Ewing, 1908); Anachipteria achipteroides milleri JacotABMI code/Common name: ANACHOWDiagnostic characters: Ventral length 455-540 (420-480 RAN), dark red-brown to black.Lamellae (175) appearing more or less truncate from above and covering most ofprodorsum, tutorium and rostrum not visible from above; lamellar cusp relatively short withcurved margin, short lateral tooth, and le on short apophysis or more obliquely taperedpedotectum I with small, sharp tooth on anterior margin, tutorium with slender, knife-likecusp adpressed to prodorsum under lamellae; rostrum with median carina, rounded toacuminate distally, without notches; bo (~85-100) directed antero-mediad, expanded andbarbed distally, often with a short distal spine; in (~125-133) barbed-acuminate, almostreaches to tip of lamellae; le (50) thick, tapering, roughly spiculate, often inserted on a shortapophysis; ro (55-60) curved medially, tapering, with dense, fine barbs; genal tooth long,blade-like, reaching well past insertion of ro. Anterior edge of pteromorphs extendingsomewhat beyond median notogastral lobe, ventral margin rounded, without spine or tooth;anterior notogastral setae relatively long (c2 ~35-40, la ~20-25), fine, lm removed (20) fromAa; Aa (10-20) subcircular to oval, A1-3 (~10); rostrum acuminate; 6 pairs genital setae,long enough to reach next seta in series (2 on anterior margin longest); with shallow genalmentum laterally; mentotectum well developed.Overview: At least two very similar morphospecies of Anachipteria are present in Alberta anddistinguishable only on the size of the notogastral porose areas, the length of the notogastralsetae (see key above), and possibly by the tips of the lamellae (although this character isdifficult to evaluate in dorsal view and also seems to be variable). Norton & Kethley (1989)point out that Berlese considered latitecta a junior synonym of howardi and also point outthat the species treated as latitecta by Hammer (1952), Gilyarov & Krivolutsky (1975), andSeniczak (1977) is not the Berlese species. In Gilyarov & Krivolutsky (1975), Shaldybina’sconcept of Anachipteria latitecta (Berlese, 1908) is a distinctive species with a long, slendersensillus that reaches the insertion of the rostral seta. Hammer’s (1952), fig. 101 (p. 108)appears to show relatively small porose areas, but is too lacking in detail for identification. Iam treating the form with the smaller porose areas as Anachipteria cf. howardi because itkeys to this species in an unpublished key by RAN, more or less keys to this species inLindo et al. (2008), it is not inconsistent with the illustration and description in Norton &Kethley (1989), VBP agreed that specimens from 618 SW were consistent with her idea ofhowardi, and the cox1 sequences from sites 151, 925, 1224, 1451, and Edmonton clustertightly with A. howardi identified from Manitoba. However, there is a reasonable likelihoodthat this mite is another, probably undescribed species.Barcodes: 1224 (658 + [658?]); 1380 (0, 0, 0); MP AD (557), N (590)343

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Norton & Kethley (1989); Lindo et al. (2008); RAN(unpublished); Gilyarov & Krivolutsky (1975). 618 SW checked by VBP April 2008.Similar taxa: Anachipteria sp. 1 DEW is very similar and difficult to separate other than by thelarger porose areas and shorter setal lengths.ABMI Site Records: 2007: 359, 618, 649, 1601. 2008: 1116, 1190, 1191, 1192, 1222, 1224,1380, 1379, 1434, 1436, 1635, FM03. 2009: 2, 13, 15, 539, 1305, 1491, 1510, 72M-5.2010: 151, 925, 1451, OG-1354-1. 2011: 63, 64, 121, 391, 391, 958, 990, 1017, 1023, 1050,1057, 1058, 1093, 1105, 1125, 1126, 1157, 1158, 1159, 1218, 1332, 1334, 1437, 1438,1439, OG-1054-1, OG-1122-1, OG-1248-1, OG-1283-1, OG-1331-1, OG-1334-1, OG-1338-1.DOC (1/2008): [+other] Distribution: NU, NT, MB; [Holarctic]Images: SEM(359, 618)Ecology: Gravid females carry up to 4 large eggs. Gut contents include fungal hyphae, browngranular material, and what appear to be moss spores.Literature: Woolley (1958); Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Norton &Kethley (1989); Lindo et al. (2008).344

Almanac of Alberta Oribatida 2.3 13 January 2013*Anachipteria sp. 1 DEW (RAM 99000005)Also Known As:ABMI code/Common name: ANACSP1Diagnostic characters: ventral length 525-570, dark red-brown to black; bo (~120-125) directedantero-medial, slightly expanded distally and barbed, subequal to shorter than barbedacuminatein (~120-140) just passing insertions of le; lamellae (175) oblique, with smalldistal tooth (rarely 2 nd tooth on margin); le (68-80) thick, tapering, roughly spiculate; ro(85-95) curved medially, tapering, with dense, fine barbs; genal tooth long, blade-like,reaching well past insertion of ro; rostrum acuminate, without notches. Anterior edge ofpteromorphs extending beyond median notogastral lobe; notogastral setae minute (c2, la~10-15, h1-2 ~5), very fine or reduced to alveoli, lm well removed (27-37) from Aa; Aa(25-35) large, subcircular to oval, A1-3 (~18-22); rostrum acuminate; 6 pairs genital setae,long enough to reach next seta in series (2 on anterior margin longest); with shallow genalmentum laterally; mentotectum well developed.Overview: This mite will key to Anachipteria magnilamellata (Ewing, 1909) in Lindo et al.(2008), but that species has the lamellar cusp concave distally according to RAN(unpublished). It is also similar to Anachipteria acuta (Ewing, 1918), but lacks importantcharacters such as the strong veining underside of the pteromorphs, the subcapitatesensillus, and the long, subequal dorsal setae. Anachipteria signata (Banks, 1895)(knownfrom the NY-MO, south in the USA) is also similar, but has a sharp, acute anteroventralangle to the pteromorph (RAN, unpublished). Anachipteria achipteroides (Ewing) is alarger species (male 575 long) known from MN and NY with sword-like tutorial cusps andc2 ~20 long.Barcodes: 1379 (658)ID Check: Determination by DEW based on Norton & Kethley (1989); Lindo et al. (2008); RAN(unpublished); Gilyarov & Krivolutsky (1975). 277 NE checked by VBP April 2008.Similar taxa: Anachipteria cf. howardi (Berlese, 1908) is very similar and difficult to separateother than by the smaller porose areas and longer setal lengths. Anachipteria acuta (Ewing,1918) has long notogastral setae and a short capitate sensillus; Anachipteria magnilamellata(Ewing, 1909), recently been reported from eastern Canada [ON, NB] by Lindo et al.(2008), has a strongly concave lamellar cusp.ABMI Site Records: 2007: 217, 218, 277, 545, 823, BOG6, UPL5. 2008: 316, 689, 1379,BOG2, SL10, UPL3. 2009: 14, 506, 507, 569, 881, 914, 916. 2010: 208. 2011: 958, 984,1018.DOC (1/2008): [+other] Distribution: Anachipteria sp. reported from YT, BC, QC, NB, NS, NF;[Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)]Images: SEM (MP)Ecology: Gravid females carry up to 4 large eggsLiterature: Woolley (1958); Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Lindo et al.(2008).345

Almanac of Alberta Oribatida 2.3 13 January 2013Parachipteria Hammen, 1952 (ITIS 734313)Diagnostic characters: achipteriids with notogastral porose areas and spurs on pteromorphsAlso Known As: Pseudachipteria Travé, 1960; Campachipteria Aoki, 1995Type species: Oribata punctata Nicolet, 1855World species: 7Comments:Canadian species listed on DOC (bold = AB): Parachipteria bella (Sellnick, 1928); P. nivalis(Hammer, 1952); P. travei Nevin, 1977B41. Key to adult Parachipteria in Alberta1. Ventral length < 0.5 mm (Fig. B41.1A) ...................................................................................... 2- Ventral length > 0.5mm; light brown, Aa subcircular; c2, la well developed (~48-60, te longer);lamellae with oblique parallel ridges basally, irregularly reticulate distally (Fig. B41.1B) ............................................................................................... Parachipteria nivalis (Hammer, 1952)346Figure B41.12. Dark brown, Aa angular to elongate oval; c2, la fine (~23-32); lamellae evenly micropunctate;tutorium truncate (Fig. B41.2A) ....................................... Parachipteria bella (Sellnick, 1928)- Light brown, Aa subcircular; c2, la well developed (~48-60, la longer); lamellae with obliqueparallel ridges basally, irregularly reticulate distally; tutorium knife-like (Fig. B41.2B) ...................................................................................................................... Parachipteria sp. 1 DEW

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B41.2*Parachipteria bella (Sellnick, 1928) (RAM 99000067)Also Known As: Notaspis bellus Sellnick, 1928; Achipteria bellus (Sellnick, 1928);Campachipteria bella (Sellnick, 1928)ABMI code/Common name: PARABELDiagnostic characters: 400-450 long, brown; lamella (160) smooth, cusp oblique, acuminate,without teeth, le on short tubercle; in (~95-100) not reaching cusp; bo (100-105) with long(~40-45) barbed club; tutorium truncate, ro (90) tapering, barbed; pedotectum I granulateand lineate, rounded distally; Aa angular to oval (27-32 x 13-18); c2, la fine (~23-32), lm(~10) smooth; lp, h2, h3 (~10-13) fine, bracket A1 (oval ~10; A2-3 similar); angle ofpteromorph rounded; cusp (55-70); margin with tooth; lenticulus indistinct, producedpostero-medially; genal tooth strong, with sub-teardrop shaped area under ro; lamellaeevenly micropunctate.Overview: The truncate tutorium is distinctive.Barcodes:ID Check: Determination by DEW based on Hammer (1952), Weigmann (2006), Gilyarov &Krivolutsky (1975). 632 SE examined by VBP April 2008.Similar taxa:ABMI Site Records: 2007: 632. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: QC; [Holarctic]347

Almanac of Alberta Oribatida 2.3 13 January 2013Images:Ecology:Literature: Hammer (1952); Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann(2006).***Parachipteria sp. 1 DEW (RAM 99000096)Also Known As:ABMI code/Common name: PARASP1Diagnostic characters: 380-420 long, brown; lamellar (145) cusp oblique, acuminate, withoutteeth, with longitudinal lineae basally, transverse lineae medially and distally; in (130)thick, barbed, extending length of lamellae; bo (75-80) with barbed, spoon-like club;tutorium acuminate, extending beyond insertion of ro; pedotectum I lineate, roundeddistally; Aa oval (20x15); c2, la well developed (~48-60, la longer), lm (20-22) smooth; lp,h2-3 (20-22) smooth, bracket A1 (oval 14x11; A2-3 somewhat smaller); angle ofpteromorph rounded, triangular; cusp (60-70); margin rounded, without tooth; lenticulusindistinct, produced postero-medially; rostrum acuminate, genal tooth not apparent;lamellae with oblique parallel ridges basally, irregularly reticulate distally.Overview: not nivalisBarcodes:ID Check: Determined as n. sp. nr. nivalis by VBP April 2008 for 1133 NW (compared toHolotype of nivalis). See also: Hammer (1952), Weigmann (2006), Gilyarov & Krivolutsky(1975).Similar taxa: Parachipteria nivalis lacks lineae on pteromorph and is 510-530 long.ABMI Site Records: 2007: 359, 1133. 2008: 1618. 2009: none. 2010: none. 2011: OG-1160-1,1126.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, BC, NS; [Holarctic]Images: SEM (1618)Ecology:Literature: Hammer (1952); Marshall et al. (1987); Gilyarov & Krivolutsky (1975); Weigmann(2006).Parachipteria nivalis (Hammer, 1952)Also Known As:ABMI code/Common name: PARANIVDiagnostic characters: Ventral length 510-530; pteromorphs smooth, without lineae.Overview: This species was described from the NT by Hammer (1952), reported from YT byVBP in her PhD thesis, and by Marshall (1979) from BC.348

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: Holotype examined at CNC April 2008 by DEW.Similar taxa: Parachipteria sp. 1 DEW is smaller and has lineae on its pteromorphs.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, BC, NS; [Holarctic]Images:Ecology:Literature: Hammer (1952); Marshall et al. (1987).Back to Table of ContentsTegoribatidae Grandjean, 1954 (ITIS 733520)(Back to Key to Brachypylina)B42. Key to the genera of Tegoribatidae1. Lamellae lateral, not fused; pteromorph without hinge; posterior notogastral tectum divided,with overlapping lobes (Fig. B42.1A) .......................................... Hypozetes Balogh 1959- Lamellae fused, covering prodorsum; pteromorph hinged; tectum undivided (Fig. B42.1B) ..... 2Figure B42.12. Notogaster with porose areas (Fig. B42.2A) ....................................... Lepidozetes Berlese 1910- Notogaster with saccules (Fig. B42.2B)....................................................................................... 3349

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B42.23. Interlamellar seta and notogastral setae minute; saccules simple; dorsophragmatic apodemefused (Fig. B42.3A) .................................................................... Tegoribates Ewing 1917- Interlamellar seta much longer than sensillus, notogastral setae distinct; saccules donut-shapedrings; dorsophragmatic apodeme bifurcate (Fig. B42.3B) ...... Scutozetes Hammer 1952350

Almanac of Alberta Oribatida 2.3 13 January 2013Lepidozetes Berlese, 1910 (ITIS 734316)Diagnostic characters: notogastral porose areas present; fused lamellae cover prodorsum;pteromorphs curve anteriad past line of dorsosejugal furrow; notogastral setae distinctAlso Known As: Onazetes Bugrov, 1991Type species: Lepidozetes singularis Berlese, 1910World species: 5 spp. Lepidozetes dashidorzsi Balogh & Mahunka, 1965, L. latipilosus Hammer,1952, L. singularis Berlese, 1910 [= chernovi Ryabinin, 1974], L. trifolius (Fujikawa,1972), L. umbellatus (Bugrov, 1991)Comments:Canadian species listed on DOC (bold = AB): Lepidozetes latipilosus Hammer, 1952; L.singularis Berlese, 1910; Lepidozetes sp.B43. Key to adult Lepidozetes in Alberta1. Sensillus a long or short club, but without elongate, flattened head (Fig. B43.1A) .................... 2- Sensillus with a large, elongate, flattened head; anteromedian notogastral tectum procurved;interlamellar setae relatively long, porose area Aa small; body length 400, yellow brown incolour (Fig. B43.1B) ................................................... Lepidozetes latipilosus Hammer, 1952351

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B43.12. Body length 340-430, yellow brown; sensillus with swollen, spiculate head (truncate distally);anteromedian notogastral tectum straight; interlamellar seta (17-18) very fine, lightlybarbed, mostly covered by tectum, much shorter than lamellar seta (Fig. B43.2A) ...................................................................................................... Lepidozetes singularis Berlese, 1910- Body length over 430-535, red brown; sensillus with fusiform, spiculate head; anteromediannotogastral tectum procurved; in (35-45) barbed, somewhat longer than more slender le(Fig. B43.2B) ..................................................................................... Lepidozetes sp. 1 DEWFigure B43.2352

Almanac of Alberta Oribatida 2.3 13 January 2013***Lepidozetes sp.1 DEW (RAM 99000090)Also Known As:ABMI code/Common name: LEPISP1Diagnostic characters: ventral length 430-535; bo (60-65) with elongate head; dorsosejugalfurrow intermediate; in (35-45) barbed, somewhat longer than more slender le; Aa (15 dia.)subcircular; notogastral setae (~15) short, barbed; fused lamellae emarginate medially.Overview: Sensillus is not flattened; compared to L. latipilosus Hammer, 1952 at CNC. Thesensillus and lamellar shield are very similar to Scutozetes lanceolatus.Barcodes:ID Check: Determination by VBP April 2008 for 1135 NE (n. sp.). See also: Hammer (1952),Weigmann (2006), Gilyarov & Krivolutsky (1975)Similar taxa: L. latipilosus is known from YT, NU, NT; [AK, Holarctic]; also sp nr latipilosus[AK]ABMI Site Records: 2007: 1069, 1135. 2008: 414 none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution:Images: SEM (414)Ecology:Literature: Hammer (1952); Gilyarov & Krivolutsky (1975); Marshall et al. (1987).*Lepidozetes singularis Berlese, 1910 (ITIS 741710)Also Known As:ABMI code/Common name: LEPISINDiagnostic characters: ventral length 340-430; bo (60) with swollen, speculate head;dorsosejugal furrow straight; in (17-18) very fine; le (~35-40) curved ventrad, barbed onouter margin, similar to medially curving ro; Aa (13-15 dia.) oval to circular; notogastralsetae (~18) short, barbed.Overview:Barcodes:ID Check: Determination by DEW based on Hammer (1952, 1955). 1135 NE checked by VBPApril 2008.Similar taxa:ABMI Site Records: 2007: 617. 2008: 316, 444, BOG3. 2009: none. 2010: 209. 2011: 1334,OG-1283-1.DOC (1/2008): [+other] Distribution: YT, NU, NT, ON, NB, NF; [AK, Holarctic]Images:353

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: A mite of mesophilous habitats and peatlands (Behan-Pelletier-Bissett, 1994). Sobel etal. (2008) found L. singularis to be fairly common in the canopy of larch and sometimespresent in the canopy of beech, oak, and spruce in a mixed temperate forest in Switzerland.Literature: Hammer (1955); Marshall et al. (1987).Scutozetes Hammer, 1952 (ITIS 734320)Diagnostic characters: porose areas absent, saccules very large, donut-like; dorsosejugal furrowconvex; fused lamellae have medial notch.Also Known As:Type species: Scutozetes lanceolatus Hammer, 1952World species: 2Comments:Canadian species listed on DOC (bold = AB): Scutozetes lanceolatus Hammer, 1952; Scutozetessp.*Scutozetes lanceolatus Hammer, 1952 (ITIS 741719)Also Known As:ABMI code/Common name: SCUTLAN; Lanceolate WingshieldDiagnostic characters: 420-480 long; integument of lamellar shelf, pteromorphs and anteriornotogastral tectum densely microtuberculate. Prodorsum with lamellar shelf bearinglongitudinal ridges; shallow distal notch; barbed, medially curved lamellar setae insertednear distal margin; long, barbed interlamellar setae (in); barbed rostral setae; and fusiform,densely spiculate sensillus (bo). Notogaster with anterior tectum covering insertions of inand bothridia; hinge of pteromorphs complete; openings to saccules large (10-13), donutlikerings; setae short (20-25), barbed; lenticulus diffuse, subcordate; mediandorsophragmata separate. Heterotridactylous; 6 pairs of genital setae (2 near anteriormargin).Overview: Very similar to Lepidozetes sp. 1 DEW, but with large saccules instead of poroseareas.Barcodes:ID Check: Determination by DEW based on Hammer (1952), Gilyarov & Krivolutsky (1975).Similar taxa:ABMI Site Records: 2007: 216, 330, 331, 360, 484, 515, 585, 1070, BOG7. 2008: 374, 414(mis-id as Lepidozetes sp. 1), 472, 751. 2009: 1, 14, 530. 2010: 151, 323, 352, 353, 354,384, 1207. 2011: 65, 242, 272, 302, 332, 362, 422, 452, 968, 1231, A702.OS, A761-4, .DOC (1/2008): [+other] Distribution: YT, NU, NT, QC, NS, NF; [AK, Holarctic]Images: SEM (331SW); LD354

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: Bisexual, females carry up to 4 eggs. Gut contents include some fungal hyphae andindeterminate brown granular material.Literature: Hammer (1952); Gilyarov & Krivolutsky (1975); Marshall et al. (1987).Tegoribates Ewing, 1917 (ITIS 734321)Diagnostic characters: porose areas absent, saccules small; dorsosejugal furrow straight; fusedlamellae lack medial notch; notogastral setae minute.Also Known As: Lepidoribates Sellnick, 1920Type species: Tegoribates subniger Ewing, 1917World species: 4Comments:Canadian species listed on DOC (bold = AB): Tegoribates americanus Hammer, 1958Tegoribates cf americanus Hammer, 1958 (ITIS 741721)Also Known As:ABMI code/Common name: TEGOAMEDiagnostic characters: ventral length 370-430 (520-630), brown; fused lamellae without distinctfurrow; saccule Sa long, narrow, curved; in very fine (~17-20)Overview: Collections from 218 have ventral length 520-630, are very dark brown to black, andthe fused lamellae are with median longitudinal groove and subsurface thickening;Barcodes:ID Check: Determination by DEW based on Hammer (1958), Woolley (1965).Similar taxa:ABMI Site Records: 2007: 218, 544, 616. 2008: 316, 689, 1224. 2009: 13, 539. 2010: OG-1171-1. 2011: 91, 1018, 1093.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, MB; [AK]Images: SEM (388)Ecology: Gravid females carry at least 4 large eggs. Gut contents include brown hyphae, spores,and granular organic material. A mite of mesophilous habitats including peatlands (Behan-Pelletier-Bissett, 1994).Literature: Hammer (1952); Hammer (1958); Woolley (1965); Marshall et al. (1987).Back to Table of Contents355

Almanac of Alberta Oribatida 2.3 13 January 2013Oribatelloidea Jacot, 1925 (ITIS 733380)(Back to Key to Brachypylina)Oribatellidae Jacot, 1925 (ITIS 733521)B44. Key to Genera of Oribatellidae in Canada1. Tutorium with rectangular cusp, usually ending in 3-10 teeth (Fig. B44.1A) ............................ 2- Tutorium tapering, with knife-like cusp (Fig. B44.1B) ............................................................... 3Figure B44.12. Lamellar seta inserted medially in deep U- to V-shaped region with lateral and medial denswell separated from lamellar seta; medial dens typically spine-like, shorter to slightly longerthan lateral dens; lamellae separate posteriorly and usually with pocket-like translamellarregion, with or without a median tooth; tutorium ending in 3 or more teeth (Fig. B44.2A) ..................................................................................................................... Oribatella Banks, 1895- Lamellar seta inserted close to small lateral dens; medial dens broad, thumb-like and 4x lengthof lateral dens; pocket-like region at medial base of cusps poorly developed and without amedian tooth; tutorium with 1 dorsal tooth (Fig. B44.2B) ................. Adoribatella sp. A DEW356Figure B44.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Lamellar cusps with lateral dens only, lamellar seta on medial margin of cusp; subsurfaceflower-like arrangement of cells absent (Fig. B44.3A) ................. ‘Tectoribates’ Berlese, 1910 s.l.- Lamellar cusps with two dens, lamellar seta inserted in V-shaped recess; subsurface flower-likearrangement of cells present (Fig. B44.3B) ............................... Tectoribates Berlese, 1910 s.s.Figure B44.3Adoribatella Woolley, 1967 (ITIS xxxx)Diagnostic characters: Poronotic with relatively large, flat porose areas; 10 pairs notogastralsetae; lamellar cusps long, with median le and well developed dens; genital setae 3+3;tridactyl.Also Known As:Type species: Adoribatella punctata Woolley, 1967World species: 1Comments: Probably not Oribatellidae, but immatures are not known.Canadian species listed on DOC (bold = AB): noneAdoribatella punctata Woolley, 1967 (xxxxxxx)Also Known As:ABMI code/Common name: ADORPUNDiagnostic characters: Male ventral length 390. Cerotegument indistinct on notogaster, exceptlineate on pteromorphs; micropunctate around bothridium and base of legs; pedotectum Iand tutorium lineate; lamellae covered with small, oval tubercles and strongly lineatelaterally. Sensillus relatively short (~50 from point of flexion), barbed, club directedanteromedially; in (~97) relatively slender; le coarsely barbed on outer surface, curvemediad, tapered-acuminate; ro similar. Lamellae (~110 long from bothridium to tip ofmedial dens) curved dwon, along prodorsum, with rather short (~55) median cusp length,short (5) lateral dens and much longer (20), broad, thumb-like medial dens. Tutorium doesnot pass tip of rostrum, with rectangular cusp ending in 4 teeth. Custodium (~30) apparentlypresent. Genital setae 3+3. Anterior notogasteral margin without lobe laterad bothridium or357

Almanac of Alberta Oribatida 2.3 13 January 2013series of parallel ridges; Aa large (19) oval; A1 subspherical (15); A2 (10); A3 (~13); 10pairs fine, smooth notogastral setae: c (~20), lm (~30) posterior and medial Aa; lp (brokenoff) inserted mediad and slightly anterior to A1, in line with h3 (~25); h2 (~22); h1-h1 ~55;p1-p1 ~35. Heterotridactylous.Overview:.Barcodes:ID Check: Has some similarity to Adoribatella punctata Woolley, 1967.Similar taxa: SEM 1261 ResidualsABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 1003 NEResiduals; 1260 NE, 1261 ResidualsDOC (1/2008): [+other] Distribution: Adoribatella punctata Woolley, 1967 was described fromColorado.Images:Ecology: Bisexual. A very rare species known currently from only two foothills spruce forestsand one alpine site in Alberta.Literature: Woolley (1967); Marshall et al. (1987).Oribatella Banks, 1895 (ITIS 734331)Diagnostic characters: Notogaster with porose areas or saccules, strong posterior mentum, 10(rarely 11-13) pairs of mostly marginal setae. Lamellae large, projecting as cusps to covermost of prodorsum, separate for most of length, and ending in a U-shaped notch flanked bytwo long processes (dens), rarely median dens reduced; translamella short or absent, with orwithout a median tooth. Genital plate with 6 pairs of genital setae (3+3, 2+4, 1+5). Tarsimonodactyl, bidactyl, or tridactyl.Also Known As: Oribatella (Oribatella) (ITIS 734820); Little RoamersType species: Oribatella quadridentata Banks, 1895World species: 93Comments: Related genera such as Joelia Oudemans, 1906 and Ophidiotrichus Grandjean, 1953,have the lamellae fused for more than half their length and may or may not have the deeplybifurcate lamellar tips. Adoribatella Woolley, 1967 and Tectoribates Berlese, 1910 havedistinct lamellae. Schneider (2005) placed mites in Oribatella in the primary decomposerfeeding guild (i.e. feeds mostly on litter).Canadian species listed on DOC (bold = AB): Oribatella arctica Thor, 1930; O. quadricornuta(Michael, 1880); O. reticuloides Hammer, 1955; Oribatella sp. [NB: Ophidiotricus sp.reported from BC by Lindo 2004-2007]358

Almanac of Alberta Oribatida 2.3 13 January 2013Species of Oribatella in AlbertaLength Rostrum Dorsal setae Porose areas Bingo Habitatjacoti 576-634 2-3 teeth 72-86 shallow,25µmpawnee 360-470 rounded 30-62 weakbarbscanadensis 365-417 split,toothedmanningensis 350-400 split,6 teethabmi 375-405 laterallyincisedbanksi 400-445 foveolate,3 teeth27-40 weakbarbsdeep 6µmdeep 13µm24-44 barbed shallow,10µmh1, size aspen foresttranslamellartoothrostrum,malerostrum,epimere Idrygrasslanddrymontaneforest24-60 barbed deep 8µm size, rostrum dry, open60-78 barbed deep 8µm setae,rostrumreticulatoides 330-340 undulate 19-29 smooth 5-8µm 1-2 innerdens teethewingi 480-564 mediantooth29-58 weakbarbsheatherae 500-574 flattened 33-62 weakbarbsyukonensis 400-505 undulate,2 densdeep 13µmdeep 11µmsubparallellamellaelamella,larva39-55 barbed deep 13µm subparallellamellaeD & C forestboreal forestdry forestmontane drygrasslands,forestsB45. Key to the species of Oribatella in Alberta1. Setae h1 tapering and projecting ventrad or laterad; genital shields with 2-3 setae on theanterior margin (2+4, 3+3), genal tooth usually with a distal antero-ventral tooth; mostlysmaller mites (ventral length usually

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B45.12. Interlamellar tooth (tubercle) absent; rostrum usually with one or more teeth or incised. Othercharacters vary, but lateral dens of lamella usually broader at base (Fig. B45.2A) ................... 3- Interlamellar tooth (tubercle) present; rostrum smooth, without teeth. Both dens of lamellanarrow, strap-like, parallel-sided, ventral length 360-470; grasslands (Fig. B45.2B) ........................................................ Oribatella pawnee Behan-Pelletier & Walter, 2012 (=sp. 3 DEW)360Figure B45.23. Lamellae +/- subparallel medially, tips separate to slightly overlapping; basal interlamellarspace narrow, elongate; larger mites (body 400-574 long) with long (c1 48-62), weaklybarbed dorsal setae and medium diameter porose areas (Aa 11-13) (Fig. B45.3A) .................. 8- Median margins of lamellae curve medially, tips somewhat to strongly overlapping; basalinterlamellar space teardrop-shaped, rounded or flattened basally; short to medium bodylengths (330-445) with short or long smooth or barbed dorsal setae; porose area Aa 5-8 or 10-13 in diameter (Fig. B45.3B) ..................................................................................................... 4

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B45.34. Rostrum undulate to trifurcate distally; c1 60-78 long, barbed or short (29) and smooth; Aa 5-8diameter (Fig. B45.4A). ............................................................................................................. 6- Rostrum incised medially with 1-3 pairs lateral teeth; c1 40-44 long, barbed; Aa 10-13diameter (Fig. B45.4B) .............................................................................................................. 5361Figure B45.4

Almanac of Alberta Oribatida 2.3 13 January 20135. Rostrum incised medially with 3 teeth on each margin; epimere I foveolate laterally; bodylength 350-400; males and females similar except for size; montane forest litter in WatertonLakes and Cypress Hills (Fig. B45.5A) ............................................................................................................................................ Oribatella manningensis Behan-Pelletier & Walter, 2012- Rostrum incised medially with 1-2 teeth on each margin; epimere I with irregular ridgeslaterally; body length 365-417; males with posterior tubercle-pit-A2-3 complex; femalesusually with 3 setae on anterior margin of genital shield; found in dry, open, often disturbedsites (Fig. B45.5B) ............................. Oribatella canadensis Behan-Pelletier & Eamer, 2010Figure B45.56. Notogastral setae long, barbed (c1 60-78); inner margin of lateral dens of lamella usuallywithout teeth (Fig. B45.6A) ....................................................................................................... 7- Notogastral setae fine, smooth or lightly barbed (c1 26-30); inner margin of lateral dens oflamella usually with 1-2 teeth (Fig. B45.6B) ............ Oribatella reticulatoides Hammer, 1955362Figure B45.6

Almanac of Alberta Oribatida 2.3 13 January 20137. Anterior margin of rostrum tricuspidate, without deep lateral incisions; ventral length 390-440;aspen and spruce litter (Fig. B45.7A) ................................................................................................................................... Oribatella banksi Behan-Pelletier & Walter, 2012 (=sp. 5 DEW)- Anterior margin of rostrum undulate to bicuspid medially and deeply incised laterally to formtwo large lateral teeth; interlamellar space rounded posteriorly, lamellar dens relatively short;body length 375-405; dry, open, often disturbed sites (Fig. B45.7B) ..................................................................................... Oribatella abmi Behan-Pelletier & Walter, 2012 (=sp. 6 DEW)Figure B45.78. Rostrum flattened to concave (Fig. B45.8A) ............................................................................... 9- Rostrum with single median tooth; ventral length >450 (Fig. B45.8B) .................................................................................. Oribatella ewingi Behan-Pelletier & Walter, 2012 (=sp. E V-BP)363Figure B45.89. Lamellar seta inserted in subrectangular space between dens; pedotectum I without ridge-likeornamentation; larval setae setiform, similar to nymphal; larger mites (ventral length 500-574) from dry montane (Kananaskis, Cypress Hills, Waterton Lakes) habitats (Fig. B45.9A) ............................................................. Oribatella heatherae Behan-Pelletier & Walter, 2012- Lamellar seta inserted in subtriangular space between dens; pedotectum I with short, ridge-likeornamentation; larval setae c1, da, dm, dp broadly expanded, leaf-like; smaller mites (ventrallength 410-505) widely distributed in a variety of forest and grassland habitats (Fig. B45.9B).................................. Oribatella yukonensis Behan-Pelletier & Walter, 2012 (=sp. 1 DEW)

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B45.***Oribatella abmi Behan-Pelletier & Walter, 2012Also Known As: Oribatella sp. 6 DEWABMI code/Common name: ORIBABM / ABMI Little RoamerDiagnostic characters: Female ventral length 350-370; male 330-375. Cerotegumentmicrotuberculate, cuticle micropunctate. Prodorsum without distinct interlamellar tooth;rostrum deeply incised and with 1-2 teeth on each side; bo (90-100) barbed, blunt distally,bothridium without lateral tooth, median tooth blunt; in (123-145) thick, evenly coveredwith strong barbs; le (90-95) very thick, similarly barbed; ro (~80) curves mediad,acuminate, and plumose-dorsally. Lamellae micropunctate and with striate ornamentation,median cusp short (~15-25) simple or with subdistal tooth, lateral cusp longer (~35-45),with irregular lateral teeth; median cusp short (25 to base le), ~2x dens width mediad le.Tutorium micropunctate and with 3-4 coarse distal teeth. Pedotectum I with microfoveolateornamentation and ridges. Notogaster micropunctate; porose areas small (Aa 7-13),subcircular; setae medium (35-50), barbed; c3 (45); lenticulus distinct, diffuse laterally;anterior margin of pteromorph with irregular small teeth. Ventral plate micropunctate;genital shields with 6 pairs of setae (2-3 on anterior margin), 48 long x 28 wide. Epimeralineate throughout; setae of epimera IV long (25-38), strong barbed. Tibia I with 2 smalldistal teeth.Overview: undescribed speciesBarcodes:ID Check: New species in Behan-Pelletier & Walter (2012).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: 72L-3, 72L-4. 2010: none. 2011: 1126,OG1160-1, OG1190-1, OG-1282-1, 1438, A637. 2012: 1412NE (residuals), 1413NW,1441NW, 1463SE, OG1554NW, OG1558SE-SW, OG1506NE, OG1646NW-SE.364

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: [AB]Images: SEMEcology: Bisexual. Mostly collected in the upper soil organic layers on dry, untreed sites withgrasses, sedges, and bryophyte cover. Gut contents include pigmented fungal hyphae andspores.Literature: Behan-Pelletier & Eamer (2010); Behan-Pelletier (2011); Behan-Pelletier & Walter(2012).***Oribatella banksi Behan-Pelletier & Walter, 2012Also Known As: Oribatella sp. 5 DEW (RAM 990000xx)ABMI code/Common name: ORIBBAN / Bank’s Little RoamerDiagnostic characters: Ventral length 380-440. Cerotegument microtuberculate, cuticlemicropunctate. Prodorsum with micropunctate cuticle and microtuberculate cerotegument,rostrum with 3 evenly spaced teeth, interlamellar tooth absent; bo (85-105) barbed,acuminate, bothridium with lateral and 1-2 medial teeth; in (149-160) thick, evenly coveredwith strong barbs; le (90-95) very thick, similarly barbed; ro (~100) curves mediad,acuminate, and plumose-dorsally; lamellae micropunctate and with overlain reticulateornamentation and strong longitudinal striae, cusps subequal, smooth medially, toothedlateral. Notogaster micropunctate; porose areas small (Aa 7-8), subcircular; setae long (60-76), weakly barbed; lenticulus distinct, diffuse laterally; anterior margin of pteromorph withirregular small teeth. Ventral plate micropunctate; genital shield 2:2:2, i.e. with 2 setae onanterior margin, followed by 2 setae and 2 setae posteriorly; maximum length of setae ofepimera IV ~3/4ths length and 150% the width of genital shield. Tibia I with 2 small distalteeth.Overview: This medium sized species of Oribatella with three rostral teeth and a rugosereticulatepattern on the lamellae is currently known only from one site in northern Albertaand from the Moose Pasture Research Site 8 km W Chipman, AB reference site near ElkIsland National Park.Barcodes:ID Check: New species in Behan-Pelletier & Walter (2012).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: 33. 2010: none. 2011: A635-1, OG-1248-1.2012: 399SE.DOC (1/2008): [+other] Distribution: [AB, BC, WA, OR, CA]Images:Ecology: Bisexual. Inhabits deciduous and coniferous forest litter and dry litter habitats fromBritish Columbia and Alberta, south to central California. Gut contents include brownfungal hyphae and what appear to be moss spores.Literature: Behan-Pelletier & Walter (2012).365

Almanac of Alberta Oribatida 2.3 13 January 2013Oribatella canadensis Behan-Pelletier & Eamer, 2010Also Known As: Oribatella sp. 6 DEW (pars)ABMI code/Common name: ORIBCAN / Canadian Little RoamerDiagnostic characters: Female ventral length 379-417; male 365-403. Cerotegumentmicrotuberculate, cuticle micropunctate. Rostrum with medial crest; translamella withouttooth; Male sexually dimorphic with low tubercle between fused porose areas A2-3.Overview: This recently described species was previously considered a variant of sp. 6 DEW.Barcodes:ID Check: New species in Behan-Pelletier & Eamer (2010); also see Behan-Pelletier & Walter(2012).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: 82H-5. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [AB, BC, YT, AK, NM].Images:Ecology: Bisexual. Known mostly from dry litter habitats. Gut contents include pigmented fungalhyphae and spores.Literature: Behan-Pelletier & Eamer (2010); Behan-Pelletier (2011); Behan-Pelletier & Walter(2012).*** Oribatella ewingi Behan-Pelletier & Walter, 2012 (ITIS xxxx)Also Known As: Oribatella sp. E VB-P & DEWABMI code/Common name: ORIBEWIDiagnostic characters:Overview: Barcodes:ID Check: Based on Behan-Pelletier & Eamer (2010); Behan-Pelletier (2011) ; Behan-Pelletier& Walter (2012).Similar taxa: Oribatella sp.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 996, 1231. 2012:none.DOC (1/2008): [+other] Distribution: [AB, BC,WA, OR, NV, CA]Images:Ecology: Known from deciduous and conferous forest and dry litter habitats.Literature: Behan-Pelletier & Eamer (2010); Behan-Pelletier (2011); Behan-Pelletier & Walter(2012).366

Almanac of Alberta Oribatida 2.3 13 January 2013***Oribatella heatherae Behan-Pelletier & Walter, 2012 (ITIS xxxx)Also Known As:ABMI code/Common name: ORIBHEADiagnostic characters: Ventral length 500-574 µm. Integument of notogaster, ventral and analplates and coxisternal region micropunctate. Rostrum with distinct medial crest dorsally;rostral margin flattened with minute dens laterally. Translamella without tooth. Medial denson lamellar cusp, thickened, very narrow, edges parallel, 71-dens 57-dens U-shaped, with seta le positioned laterally on base of U. Bothridial setae 112-123 µmlong µm long, with barbed, fusiform head, tapered distally. Epimeral setae barbed, with 3cseta 1a. Custodium 43- Ten pairs of weakly barbed notogastral setae33-–h135-–p1 29-Overview: Barcodes:ID Check: New species in Behan-Pelletier & Walter (2012).Similar taxa: Oribatella yukonensis is similar, but smaller, especially in AB.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [AB]Images:Ecology: Known from dry litter habitats in montane areas of southern Alberta (Kananaskis,Cypress Hills).Literature: Behan-Pelletier & Eamer (2010); Behan-Pelletier (2011); Behan-Pelletier & Walter(2012).*** Oribatella jacoti Behan-Pelletier, 2011 (ITIS 741815)Also Known As: Oribatella quadricornuta (Michael, 1880)? (misidentification)ABMI code/Common name: ORIBJAC / Jacot’s Little RoamerDiagnostic characters: ventral length 530-610, dark brown to black; tridactyl; lamellaemicropunctate, outer process +/- longer than inner process, both smooth, but outer marginwith a few tiny denticles and longitudinal ridges; bo blunt, ~half length lamellae; in verylong (210), passing tips of lamellae and twice length of thick, spiculate le (105); tutoriumbroad, with ~8 distal teeth; anterior margin of pteromorph denticulate; notogastermicrotuberculate; Aa large (18-25 on longest axis); genital setae arranged in loose arc; h1setae barbed, closely inserted, and project posteriorly.Overview: This species has previously been confused with the Holarctic (Europe, southeasternUSA) O. quadricornuta (Michael, 1880); but that species has a translamellar tooth and is usuallylarger (length 600-711).367

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: New species in Behan-Pelletier (2011); also see Behan-Pelletier & Walter (2012).Similar taxa:ABMI Site Records: 2007: 543, 618, 632, 664, 793, 825. 2008: 343, 1190. 2009: 538. 2010:892. 2011: OG-1082-1, OG-1275-1.DOC (1/2008): [+other] Distribution: [AB, ON, NS, MO, WI, IL, AR]Images: SEM (MP)Ecology: Bisexual: gravid females carry up to 6 large eggs. No gut contents could be identified inthe Alberta specimens. Found in deciduous litter habitats, especially aspen forests inAlberta.Literature: Behan-Pelletier & Eamer (2010); Behan-Pelletier (2011); Behan-Pelletier & Walter(2012).***Oribatella manningensis Behan-Pelletier & Walter, 2012 (ITIS xxxx)Also Known As:ABMI code/Common name: ORIBMAN / Manning Little RoamerDiagnostic characters: Ventral length 500-574 µm. Integument of notogaster, ventral and analplates and coxisternal region micropunctate. Rostrum with distinct medial crest dorsally;rostral margin flattened with minute dens laterally. Translamella without tooth. Medial denson lamellar cusp, thickened, very narrow, edges parallel, 71-onger than lateraldens 57-dens U-shaped, with seta le positioned laterally on base of U. Bothridial setae 112-123 µmlong, with barbed, fusiform head, tapered distally. Epimeral setae barbed, with 3c longestCustodium 43- Ten pairs of weakly barbed notogastral setae 33-long, positioned so that lm posteriad Aa, and lp anterior A1. Distance setae h1–h1 35-41–p1 29-Overview: Barcodes:ID Check: Based on Behan-Pelletier & Eamer (2010); Behan-Pelletier (2011); Behan-Pelletier &Walter (2012).Similar taxa: Oribatella banksiABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [AB, BC, WA]Images:Ecology: Inhabitant of a variety of litter types in the Montane Cordillera (Waterton Lakes,Cypress Hills in Alberta).Literature: Behan-Pelletier & Eamer (2010); Behan-Pelletier (2011); Behan-Pelletier & Walter(2012).368

Almanac of Alberta Oribatida 2.3 13 January 2013***Oribatella pawnee Behan-Pelletier & Walter, 2012Also Known As: Oribatella sp. 3 DEW (Ram 99000095)ABMI code/Common name: ORIBSP3 / Prairie Little RoamerDiagnostic characters: Female ventral length 370-400; male 360-380. Cerotegumentmicrotuberculate, cuticle micropunctate. Prodorsum with strong interlamellar tooth; rostrumdeflected, margin smooth to truncate, without strong teeth or indentations; bo (67-95)barbed, blunt distally, bothridium without distinct lateral tooth, median tooth blunt; in (160-165) thick, evenly covered with strong barbs; le (110) very thick, similarly barbed; ro(~100) curves mediad, acuminate, and plumose-dorsally; lamellae micropunctate and withcoarse longitudinal striae laterally, cusps subequal, smooth medially, toothed laterally;tutorium micropunctate, with subreticulate ridges and 5-7 coarse distal teeth; outer surfaceof pedotectum I micropunctate and with dense basal lineae and coarse subreticulate ridgesdistally. Notogaster with microtuberculate cerotegument closely adhering to micropunctatecuticle, but easily removed; porose areas small (Aa 7-11), subcircular; setae medium (33-40), barbed; lenticulus distinct, diffuse laterally; anterior margin of pteromorph withirregular small teeth. Ventral plate microtuberculate/micropunctate; genital shield setation2:2:2. Tibia I with 2 small distal teeth at base of distal apophysis.Overview:Barcodes:ID Check: New species in Behan-Pelletier & Walter (2012).Similar taxa:ABMI Site Records: 2007: none. 2008: 1192, 1224. 2009: 1556. 2010: 1538. 2011: 1247, OG-1122-1.DOC (1/2008): [+other] Distribution: [AB, CO].Images:Ecology: Bisexual. Gravid females carry up to 4 eggs; gut contents contain dark and hyalinefungal spores and hyphae. A grassland mite from the shortgrass prairie of Colorado to themixed grasslands of southern Alberta.Literature: Behan-Pelletier & Walter (2012).*Oribatella reticulatoides Hammer, 1955 (ITIS 741820)Also Known As: Oribatella reticuloides Hammer, 1955 – erroneous spellingABMI code/Common name: ORIBRETDiagnostic characters: Female ventral length 320-330, male 320, brown; tridactyl. Prodorsumwith strongly overlapping lamellae; rostrum bicuspidate, without deep notch; in (120-125)acuminate, much longer than very thick, spiculate le (75-78); bo (~80-90) swollen distally,with short spicules; ro (~80 curved, tapering, and plumose dorsally; lamellae withlongitudinal ridges, outer process toothed on median and lateral margins, inner processes369

Almanac of Alberta Oribatida 2.3 13 January 2013smooth or toothed, with large, overlapping basal bulges; tutorium broad, denticulatedistally; pedotectum I with ridged ornamentation (without foveae). Notogaster evenlymicrotuberculate anterior margin of pteromorph denticulate; with transverse folds atanterior junction with notogaster; notogastral setae fine, smooth, hair-like; c3 (26-30);porose areas small Aa (4-7). Venter microtuberculate, epimeron IV striate anterior to genitalshields; setae of epimere IV long (33-35), densely barbed; genital shields (~37-43 long,~21-25 wide) with 6 pairs of barbed setae (2 on anterior margin).Overview: O. arctica Thor has micropunctate cuticle and is 420-490 and is known from YT, NU,NT, MB. Identification is tentative pending revision of genus by VBP.Barcodes:ID Check: Determination by VBP April 2008 for 359 NE, NW; Hammer (1955); Behan-Pelletier& Eamer (2010); Behan-Pelletier (2011); Behan-Pelletier & Walter (2012).Similar taxa: Oribatella sp. 5ABMI Site Records: 2007: 359, 857. 2008: 868, PRO4. 2009: (33 residuals), 539. 2010: none.2011: A637, 1437, 1438 (residuals). 2012: ASK5SW, 1043SE (residuals).DOC (1/2008): [+other] Distribution: YT, QC; [AK, AB, ON, QC, NB]Images: SEM (MP)Ecology: A mite of the upper organic layers of aspen woodland, pine forest, and mesic, grassyareas. Gravid females carry up to 3 large eggs. Gut boli contain pigmented andunpigmented fungal hyphae and spores and granular material.Literature: Hammer (1955); Marshall et al. (1987); Behan-Pelletier & Walter (2012).***Oribatella yukonensis Behan-Pelletier & Walter, 2012 (ITIS xxxx)Also Known As: Oribatella sp. 1 DEW (RAM 99000038)ABMI code/Common name: ORIBSP1Diagnostic characters: ventral length 400-505, brown. Prodorsum with microtuberculatemicropunctateornamentation; interlamellar tooth absent; in 1/3 rd longer than le; bo (~100)slightly longer than le, reaching ~2/3rds up lamellae, thickened distally, barbed tip.Tutorium broad, ~14 teeth distally. Rostrum more or less truncate with a few small teeth.Pedotectum I with strong pattern of subreticulate ridges. Lamellae subparallel, narrowlyseparated at base, strongly lineate laterally; cusps subequal, median cusp simple, lateralcusp and margin toothed. Notogaster microtuberculate/micropunctate, most setae marginal,barbed; porose areas small (10-13), subcircular; anterior margin of pteromorph weaklytoothed, lineage in humeral region, usually with a ventral tooth. Ventral plate micropunctateand with rugose ridges, especially on and around genital shields; epimere IV setae >widthgenital valves; rostrum toothed; Tibia I with two small dorso-distal teeth; tridactyl. Male(site 359) notogaster with 4 pairs of small porose areas.Overview:Barcodes:370

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: New species in Behan-Pelletier & Walter (2012). AB specimens tend to be smaller(4001-450), then those from the Yukon (432-505).Similar taxa: Oribatella heatherae is a larger montane species.ABMI Site Records: 2007: 359, 825, 1069, 1133. 2008: 344, 690, 867, 1192 (on slide with sp.3), 1402. 2009: 2. 2010: none. 2011: 1232. 2012: 56SE, 113SW, A-819.2NE.DOC (1/2008): [+other] Distribution: [AB, YT]Images:Ecology: Bisexual: gravid females carry at least 3 eggs. Gut contents include brown fungalhyphae. A mite of dry habitats and upland aspen and spruce forests.Literature: Behan-Pelletier & Eamer (2010); Behan-Pelletier (2011); Behan-Pelletier & Walter(2012).Tectoribates Berlese, 1910Diagnostic characters: tutorium with tapering, knife-like cusp; octotaxic system of porose areasor sacculi; lamellar cusps covering prodorsum with lateral dens, with or without mediandens.Also Known As: Anoribatella Kunst 1962; NB – also put in AchipteriidaeType species: Sphaerozetes (Tectoribates) proximus Berlese, 1910World species: 4 species Europe, Asia, (South America)Comments: A variety of species belonging in other genera have been placed in Tectoribates atone time or another and the genus is often placed in the Achipterioidea.Canadian species listed on DOC (bold = AB): Tectoribates sp. ON, QCB46. Key to the species of Tectoribates in Alberta1. Lamellae with medial dens obsolete, lamellar seta inserted on medial margin of lamella(resembles a minute Anachipteria); lenticular region without subsurface flower-like cell array(Fig. B46.1A) .................................................................................. Tectoribates s.l. sp. 1 DEW- Lamellae ending in two dens; lenticular region with daisy-like arrangement of 7 subsufacecells (Fig. B46.1B).................................................................................................................................................................................................................................... Tectoribates sp. B DEW371

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B46.1***Tectoribates sp. 1 DEWAlso Known As:ABMI code/Common name: TECTSP1Diagnostic characters: Female 290-300 long, ventral plate, notogaster, prodorsum, lamellae allevenly punctate; tutorium longitudinally striate, tapering to point passing the inserion of therostral seta; genu II with distal spur; rostrum deeply incised, with 3 pairs of teeth.Overview: An apparently undescribed species that could also be attributed to the genusPseudotectoribates Subías.Barcodes:ID Check: Determination VBP October 2008 for specimen from Point Proctor 1 June 2008.Similar taxa:ABMI Site Records: 2007: none. 2008: [1192 Residuals; 1635 Residuals]. 2009: none. 2010:none. 2011: none. 2012: 1412SE, NE (res).DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444)]Images:Ecology:Literature: Hammer (1952); Marshall et al. (1987).***Tectoribates sp. B DEWAlso Known As:ABMI code/Common name: TECTSPBDiagnostic characters: Female 330 long; male 300. Cerotegument of relatively large (1 µm),spherical globules; lamellae finely longitudinally lineate (cuticle densely micropunctate);tutorium, rostrum, coxisternal region lineate, pedotectum I lineate-tuberculate. Lamellae 90-372

Almanac of Alberta Oribatida 2.3 13 January 2013100 long (from bothridium to tip of median dens), cusps 58-64 at midline; medial dens (18-21) rather broad (5 at base) and shorter than short, broad lateral dens (15-18); interlamellarspace narrow (1-2 µm); translamella and tooth absent. Tutorium with tapering, knife-likecusp (~30-35) ending well before tip of rostrum. Rostrum indented medially with one pairof shallow teeth; ro (50) curved mediad, tapered, with long barbs on outer face; le (45-49)similar, inserted in deep pocket of lamellar cusp; in (~77-81) barbed, strongly tapering; inin21-22; sensillus short (40), barbed club directed medially. Anterior margin of notogasterstrongly produced, with small lobes laterad bothridia, but without ridge-like ornamentation;pteromorph subtriangular with a few teeth distally. Aa irregular oval (7-10); A1 (7); A2 (6),A3 (9); 10 pairs of slender, dorsally barbed setae, dorsal setae 15-28; c (~28). Custodiumwith triangular, knife-like cusp (~21). Genital setae 2+4 (2 on anterior margin 4 alignednear medial margin).Overview: An apparently undescribed species.Barcodes:ID Check: Determination VBP October 2008 for specimen from Point Proctor 1 June 2008.Similar taxa:ABMI Site Records: 2007: none. 2008: [1635 NW Residuals]. 2009: [2 SW Residuals]. 2010:none. 2011: OG1054-1NW (53.57580948, -112.461479); 1438 Residuals; 2012: 1411 SW[Residuals NE, NW, SE; (51.41223526, -112.587357); 1642 NE, SE; 1362 NE .DOC (1/2008): [+other] Distribution:Images:Ecology:Literature: Hammer (1952); Marshall et al. (1987).Back to Table of ContentsOripodoidea Jacot, 1925 (ITIS 733383)(Back to Key to Brachypylina)B47. Key to genera and families of Oripodoidea in Alberta1. Adult notogaster with porose areas (Fig. B47.1A) ...................................................................... 2- Adult notogaster with saccules (Fig. B47.1B) ............................................................................. 5373

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B47.1Poronotic Oripodoidea2. Dorsosejugal furrow usually complete (or pteromorphs absent); 4-5 (6) pairs genital setae;pteromorphs present or absent (Fig. B47.2A) ........................................................................... 3- Dorsosejugal furrow incomplete medially; pteromorphs well developed and movable; poroseareas with thick, raised rims, A1 peripheral; lamellae with lateral tooth and irregulartranslamella; 6 pairs genital setae; 490-600 (Fig. B47.2B) .......................................................................................................................Podoribates longipes (Berlese, 1887), Mochlozetidae374Figure B47.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Pteromorphs at most a short shelf or absent; 10-14 pairs notogastral setae; 4-6 pair genitalsetae (Fig. B47.3A) .......................................................................................... Oribatulidae s.l.- Pteromorphs well developed, curve ventrad; 10 pairs notogastral setae; 4-5 pairs genital setae(Fig. B47.3B) ............................................................................................................................. 4Figure B47.34. Sublamella extends to lamellar seta, 4 pairs of genital setae (not yet recorded from AB) ........................................................................ Lagenobates Weigmann and Miko, 2002, Haplozetidae- Sublamella vestigial, 5 pairs of genital setae ............. Protoribates Berlese, 1908, HaplozetidaeSacculonotic Oripodoidea5. Pteromorphs strap-like, shelf-like, or absent (Fig. B47.4A) ....................................................... 6- Pteromorphs auricular (Fig. B47.4B) ............................................Neoribates, Parakalummidae375

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B47.46. Pteromorphs immovable, shelf-like or absent; 10 pairs notogastral setae (Fig. B47.5A) ............................................................................................................................ Scheloribatidae (pars)- Pteromorphs strap-like, movable; 13-14 pairs notogastral setae (Fig. B47.5B) ...............................................................................................................Peloribates Berlese, 1908, Haplozetidae376Figure B47.5

Almanac of Alberta Oribatida 2.3 13 January 2013Haplozetidae Grandjean, 1936 (ITIS 733546)Peloribates Berlese, 1908 (ITIS 734540)Diagnostic characters: sacculonotic; pteromorphs movable; 13-14 pairs notogastral setaeAlso Known As: Euryparazetes Radford, 1948; Peloribates (Peloribates) (ITIS 734911)Etymology – pel, -o = clay, mud, brown, dusky; pelor (G) – monster, monstrous; oribat =mountain roamingType species: Oribates peloptoides Berlese, 1888World species: ~80; Marshall et al. 1987 list 14 North American species.Comments:Canadian species listed on DOC (bold = AB): Peloribates americanus Jacot, 1939; P. canadensisHammer, 1952; P. juniperi (Ewing, 1913); P. pilosus Hammer, 1952; Peloribates sp. [NB:Rostrozetes appalachicolus Jacot, 1938 in NS; Rostrozetes ovulum (Sellnick, 1925) in ON,QC, NB, NS]B48. Key to Peloribates in Alberta1. Body length usually

Almanac of Alberta Oribatida 2.3 13 January 20132. Ventral length 0.500-0.550; yellow brown, prodorsum, notogaster, pteromorphs, and ventralplate densely foveolate and irregularly micropunctate; notogastral setae (60-80) thick, denselybarbed; bo short (60-65), club distinct, rounded distally, barbed; in (85-90), longer thanlamellae; saccules shallow, bag-like, with thick, irregular rim (Fig. B48.2A) ........................................................................................................................................... Peloribates sp. 3 DEW- Body 0.54-0.58 mm long, brown with reticulate pattern of light spots in anterior half ofnotogaster; notogastral hairs very short, inserted in dark spots; bo long, with spindle-shapedhead; in half length of lamellae; rostrum conical, with strong lateral tooth; dorsophragmatastrongly developed; saccules pouch-like (Fig. B48.2B) ...................................................................................................................................................... Peloribates alaskensis Hammer, 1955Figure B48.23. Saccules shallow, sack-like; notogastral setae relatively short (mostly

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B48.34. Notogastral setae fine (20-40) sparsely barbed; notogaster and ventral plate granulate (verydensely micropunctate); bo (90-100) with fusiform barbed head; saccules shallow sackswithout broad rim; ventral length 410-450 (Fig. B48.4A) ............................................................................................................................................... Peloribates canadensis Hammer, 1952- Notogastral setae (25-60[70]) thick, densely barbed; notogaster and ventral plate faintlyfoveolate; bo with oval, barbed, rounded head; saccules shallow with thick oval rim; ventrallength 375-440 (Fig. B48.4B)................................................................ Peloribates sp. 4 DEW379Figure B48.4

Almanac of Alberta Oribatida 2.3 13 January 2013*Peloribates canadensis Hammer, 1952 (ITIS 743476)Also Known As:ABMI code/Common name: PELOCANDiagnostic characters: ventral length 410-450; notogaster and ventral plate granulate (verydensely micropunctate), setae short (20-40) sparsely barbed; bo (90-100) with fusiformbarbed head; in (50-55) densely barbed, shorter than le (75); heterotridactyl; sacculesshallow with thick, oval rim.Overview:Barcodes: 444 (657, 658 x 2)ID Check: Determination by DEW based on Hammer (1952, 1955), Aoki (1967), Gilyarov &Krivolutsky (1975); Bayartogtokh & Smelyansky (2008).Similar taxa: Peloribates europaeus Willmann, 1953 [Palearctic]; Peloribates sp. 4ABMI Site Records: 2007: 216, 331, 390, 585, BOG7. 2008: 374, 444, 688. 2009: 1, 32. 2010:none. 2011: 302, 361, 391.DOC (1/2008): [+other] Distribution: YT, NU, NT, MB, QC, NFImages: SEM (444)Ecology: Bisexual: gravid females carry up to 6 large eggs. Gut contents are typically composedof dark fungal hyphae, but several also have the cuticle of small mites, including oneimmature oribatid.Literature: Hammer (1952, 1955), Aoki (1967), Gilyarov & Krivolutsky (1975); Marshall et al.(1987); Bayartogtokh & Smelyansky (2008).Peloribates pilosus Hammer, 1952 (ITIS 743520)Also Known As:ABMI code/Common name: PELOPILDiagnostic characters: ventral length 410-520; prodorsum, notogaster, pteromorphs, and ventralplate densely micropunctate; in (105-110) densely barbed, similar in length to le, longerthan densely barbed notogastral setae (75-90), and longer than bo (100) with fusiform,acuminate, barbed head; 5 pairs genital setae; heterotridactyl; saccules long, narrow,curved; tutorium with short cusp over rostral setal insertion.Overview:Barcodes:ID Check: Determination by DEW based on Hammer (1952, 1955), Aoki (1967), Gilyarov &Krivolutsky (1975); Bayartogtokh & Smelyansky (2008).Similar taxa: Peloribates acutus curvisacculus Aoki, 1967ABMI Site Records: 2007: 574, 600, 601, 618, 649, 650, 664, 793, 1118, 1150, 1525, UPL5;2008: 413, 721, 752, 974, 1116, 1190, 1192, 1222, 1223, 1355, 1380, 1404, 1635, BOG1,380

Almanac of Alberta Oribatida 2.3 13 January 2013BOG4, UPL1. 2009: 528, 529, 537, 697, 699, 728, 759, 882,, 1491, 1510, 1512, 72L-1,72L-5, 72M-2, 72M-3, 72M-5. 2010: 325, 353, 875, 923, 924, 925, 941, 1036, 1142, 1176,1207, 1451, 1486, OG-1203-1, OG-1210-1, OG-1352-1, OG-1353-1. 2011: 91, 451, 640,958, 984, 990, 1017, 1022, 1056, 1071, 1092, 1105, 1125, 1126, 1138, 1158, 1185, 1218,1248, 1332, 1461, A702.OS, A761-4, OG-1054-1, OG-1082-1, OG-1090-1, OG-1122-1,OG-1160-1, OG-1190-1, OG-1218-1, OG-1218-1, OG-1282-1, OG-1283-1, OG-1331-1.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, MB; [Moose Pasture Research Site 8 kmW Chipman, AB (53.656667, -112.759444)]Images: SEM (1222, MP)Ecology: Reported from mesophilous habitats and peatlands (Behan-Pelletier-Bissett, 1994).Bisexual: gravid females carry up to 5 eggs. Gut contents include mostly fungal hyphae andspores with some coarse organic matter.Literature: Hammer (1952, 1955), Aoki (1967), Gilyarov & Krivolutsky (1975); Marshall et al.(1987); Bayartogtokh & Smelyansky (2008).***Peloribates sp. 3 DEW (RAM 99000043)Also Known As: Peloribates sp. 5 DEW = males of sp. 3 DEWABMI code/Common name: PELOSP3Diagnostic characters: female ventral length 500-550; prodorsum, notogaster, pteromorphs, andventral plate evenly punctuate to foveolate; 14 pairs of notogastral setae (60-80) thick,densely barbed; bo short (60-65), club distinct, rounded distally, barbed; in (85-90) denselybarbed, longer than le (75-80); 5 pairs genital setae; tridactyl with lateral claws relativelythick; saccules shallow, with thick, irregular rim;Male: ventral length 480; notogaster and ventral plate weakly foveolate; notogastral setae denselybarbed, h1 foliose; bo with oval, barbed, rounded head; heterotridactyl; saccules shallow.Overview: Likely to be a new species.Barcodes:ID Check: Determination by DEW based on Hammer (1952, 1955), Aoki (1967), Gilyarov &Krivolutsky (1975); Bayartogtokh & Smelyansky (2008).Similar taxa: Rostrozetes Sellnick, 1925 (=Trachyoribates Berlese, 1908) have 10 pairsnotogastral setae, are monodactyl, and the Canadian fauna includes R. appalachicolus Jacot,1938 (NS) and R. ovulum (Sellnick, 1925) (ON, QC, NB, NS). Peloribates minutus Aoki,1967 is smaller, with short in, and monodactyl; P. acutus Aoki, 1961 have conicalprotrusions from saccules, fusiform to lanceolate sensilli and longer notogastral setae.ABMI Site Records: 2007: 358, 543, 545, 617, 618, BOG6. 2008: 344, 1085, UPL2. 2009: 508,529. 2010: ALPAC-10, ALPAC-11. 2011: 93, 332, 391, 452, 672, 1024, A635-1, A637-1,A7, A761-1.sp. 5 records = ABMI Site Records: 2007: none. 2008: UPL1. 2009: 570, 761. 2010: none.381

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444)] Peloribates sp. reported from MB, ON, QC, NB, NS.Images: SEM (MP)Ecology: Bisexual: gravid females carry up to 6 fully formed and 2 smaller eggs. Gut bolicontain fungal hyphae and spores.Literature: Hammer (1952, 1955), Aoki (1967), Gilyarov & Krivolutsky (1975); Marshall et al.(1987); Bayartogtokh & Smelyansky (2008).***Peloribates sp. 4 DEW (RAM 99000044)Also Known As:ABMI code/Common name: PELOSP4; Common name: Fescue Dusky RoamerEtymology – common in fescue grasslandDiagnostic characters: ventral length 375-450; notogaster and ventral plate weakly tomoderately foveolate; notogastral setae (25-45) mostly short, densely barbed; in (60-65)densely barbed, shorter than le (70-75), about as long as bo (with oval, barbed, roundedhead); heterotridactyl; saccules shallow, with thick oval rim.Overview:Barcodes:ID Check Determination by DEW based on Hammer (1952, 1955), Aoki (1967), Gilyarov &Krivolutsky (1975); Bayartogtokh & Smelyansky (2008). Likely to be a new species. Twospecimens, one each from 474 and 530, are larger and have longer setae and lack distinctfoveae and may represent a cryptic species.Similar taxa: Peloribates europaeus Willmann, 1953 [Palearctic]; P. canadensis HammerABMI Site Records: 2007: 1254, 1526. 2008: 474, 1223, 1435, 1436, 1557, 1558. 2009: 530,72L-2, 72L-3, 72L-4, 72M-1, 72M-3, 72M-5. 2010: 1239, OG-1484-1. 2011: 1218, 1334,1437, 1438, 1459, 1460, 1461, 1577.DOC (1/2008): [+other] Distribution: [Kinsella] Peloribates sp. reported from MB, ON, QC, NB,NS.Images: SEM (1436, 1588)Ecology: This is a mite appears to be a new species and is common in pasture in southernAlberta. The mites are bisexual and gravid females carry up to 6 eggs. Gut contents includefungal hyphae and spores (including muriform spores), and setose cuticle, suggestingopportunistic predation.Literature: Hammer (1952, 1955), Aoki (1967), Gilyarov & Krivolutsky (1975); Marshall et al.(1987); Bayartogtokh & Smelyansky (2008).382

Almanac of Alberta Oribatida 2.3 13 January 2013Protoribates Berlese, 1908 (ITIS 734520)Diagnostic characters: Oripodoidea with hinged pteromorphs, custodium with cusp lamellae,porose areas, and 10 pairs of notogastral setae; sensillusvarious.Also Known As: Alloribates Banks, 1947; Propeschelobates Jacot, 1936; Styloribates Jacot,1934; Xylobates Jacot, 1929Type species: Oribata dentata Berlese, 1883World species: ~44Comments: Protoribates has been subject to considerable taxonomic confusion with variousfamily and generic placements. Until recently including (including earlier versions of thisAlmanac), most species have been credited to Xylobates Jacot, 1929, a junior subjectivesynonym (see Weigmann et al. 1993).Canadian species listed on DOC (bold = AB): Protoribates sp. [NB: Haplozetes sp. reported fromON, NF]; Xylobates capucinus (Berlese, 1908); X. lophotrichus (Berlese, 1904); X.oblongus (Ewing, 1909); Xylobates sp.***Protoribates sp.1 DEW (n. sp. Walter & Latonas in press)(RAM 99000049)Also Known As:ABMI code/Common name: PROTSP1Diagnostic characters: ventral length 460-570, yellow-red-brown; rostrum blunt apically, ro(55-60) barbed; le (~110) barbed at narrow tip of ribbon-like lamella (no cusp, 85-90 long);in (~120) barbed, passing tips of lamellae; bo (~65-70) directed dorsolateral, club (spoon)with rounded tip and small, sparse barbs about half length; notogastral setae (10 pairs?) fineand very small (~10); porose areas oval to subspherical with thickened rim, Aa largest (20-23 long), patch of reticulations near Aa, A1 (~10); heterotridactylous; pteromorphs withhinge, +/- strap-like; dorsophragmata strongly developed; ventral shield with U-shapedfurrow; 5 pairs genital setae.Overview: Xylobates Jacot, 1929 has been subsumed into Protoribates by some authors and thissynonymy appears to be validBarcodes: 1379 (520, 619)ID Check: Determination by DEW based on Weigmann & Monson (2004). 484 SE checked byVBP April 2008.Similar taxa: Xylobates sp.ABMI Site Records: 2007: 484, BOG6, UPL5. 2008: 472, 974, 1379, BOG1, BOG2. 2009: 13,569, 883, 881, 916. 2010: 910, 1170, 1171, OG-1210-2. 2011: 63, 391, 392, 604, 608, 1071,1238, 1439, A761-4, OG-1160-1, 1136.DOC (1/2008): [+other] Distribution: Protoribates sp. reported from QC, NBImages:383

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: Bisexual: gravid females carry up to 6 eggs. Gut contents pigmented and unpigmentedfungal hyphae and spores; particles of organic matter; and sometimes the cuticle of smallarthropods. A mite of open areas including fens, bogs and moist to mesic forests litter.Literature: Marshall et al. (1987); Weigmann & Monson (2004); Walter & Latonas (2013).** Protoribates robustior (Jacot, 1937) (ITIS xxxxxxxx)Also Known As: Xylobates cf prionotus Woolley, 1968ABMI code/Common name: PROROBDiagnostic characters: female ventral length 480-550, yellow-brown; in (105-115) and le (78-95) long, barbed, inserted near tip of lamella; bo (~95-100) reflexed, with acuminate, ciliatehead; ro (50) slender, straight, sparse barbs; median notogastral margin slightly convex,pteromorphs truncate anteriorly, +/- triangular, gradually joining notogaster posteriorly; Aaoval (10-15), A1? (6-9) circular, A3? (10) oval; dorsal setae reduced to alveoli; tibia I-IIwith thick, comb-like ventral seta; monodactyl; dorsophragmata relatively short.Overview: Formerly known as Xylobates prionotus, but that species is a junior objectivesynonym of Protoribates lophotrichus (Berlese, 1904). Similar to P. oblongus (Ewing,1909), but with 17 setae on tarsus I vs 20 setae.Barcodes:ID Check: Determination by VBP as cf prionotus based on Woolley (1968) April 2008 for 1602NW.Similar taxa: Protoribates sp. 1 DEW, Peloribates spp.ABMI Site Records: 2007: 330, 359, 545, 1601, 1602. 2008: 1434, 1477. 2009: 1567. 2010:151, 892. 2011: 64, 452, 1092, 1461, OG-1218-1.DOC (1/2008): [+other] Distribution: Xylobates sp. reported from AB, ON, NB, NS, NF; [MoosePasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)]Images: SEM (1618, ONY)Ecology: Other species of Xylobates are suspected parthenogens (Norton et al. 1995). Gravidfemales carry 2-3 large eggs. Gut contents include coarse particulate matter, possible plantcell fragments, and fungal hyphae and spores.Literature: Woolley (1968); Marshall et al. (1987).Back to Table of ContentsMochlozetidae Grandjean, 1960 (ITIS 733531)Podoribates Berlese, 1908 (ITIS 734417)Diagnostic characters: Oripodoidea with movable pteromorphs, 4 pairs of oval notogastralporose areas, 6 pairs of genital setae, dorsosejugal furrow interrupted medially.Also Known As: Sphaerobates Sellnick, 1928384

Almanac of Alberta Oribatida 2.3 13 January 2013Type species: Oribata longipes Berlese, 1887World species: 15Comments:Canadian species listed on DOC (bold = AB): Podoribates longipes (Berlese, 1887)Podoribates longipes (Berlese, 1887) (ITIS 742416)Also Known As: Oribates longipes Berlese, 1887; Sphaerozetes (?) gratus Sellnick, 1921;Sphaerobates gratus (Sellnick, 1921)ABMI code/Common name: PODOLONDiagnostic characters: length 490-600; movable pteromorphs; porose areas with thick, raisedrims, A1 peripheral; lamellae with lateral tooth and irregular translamella; 6 pairs of genitalsetae; short, clubbed bo; interlamellar setae long, barbed, > long barbed le; tridactylous.Overview:Barcodes:ID Check: Determination by DEW based on Norton (1984).Similar taxa: Peloribates, XylobatesABMI Site Records: 2007: 650, 793, 856, 1149, 1150. 2008: none. 2009: none. 2010: 1542.2011: 990, 1056, 1058, 1184, 1185, 1186, 1216, 1217, 1246, A635-1, OG-1122-1.DOC (1/2008): [+other] Distribution: AB, NU, NT, ON; [Holarctic]Images:Ecology: These mites are reported to feed on fungi and pollen in grasslands (Norton, 1984) andare xerophilous in peatlands (Behan-Pelletier-Bissett, 1994). The Alberta specimens havegut contents with brown granular material, fungal spores, and possible moss spores.Bisexual: one female on-hand carries 8 eggs.Literature: Norton (1984); Marshall et al. (1987).Back to Table of ContentsOribatulidae Thor, 1929 (ITIS 733533)(Back to Key to Oripodoidea)Comments: Unlike most Brachypylina with an octotaxic system, the Oribatulidae lack welldeveloped pteromorphs, although they may have a short, shelf-like tectum in the humeralregion. Several genera of Scheloribatidae (e.g. Paraleius, Dometorina) also lack distinctpteromorphs. Genera of Scheloribatidae with notogastral porose areas, e.g. Liebstadia, arekeyed here.385

Almanac of Alberta Oribatida 2.3 13 January 2013B49. Key to Genera of Oribatulidae s.l. in and near Canada1. Lamellae absent or (Phauloppia) reduced to fine costulae without translamella and notdistinctly connected with bothridium (Fig. B49.1A) .............................................................. 9- Lamellae present, with or without a translamella (Fig. B49.1B) ............................................... 2386Figure B49.12. Genital plates with usually with 5 pairs of setae; notogastral setae strongly barbed andapproaching length of interlamellar and lamellar setae (Fig. B49.2A) .................................. 3- Genital plates usually with 4 (rarely 2-3) pairs of setae; notogastral setae simple to barbed, butusually shorter than interlamellar and lamellar setae (Fig. B49.2B) ...................................... 4

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B49.23. Lamellae ~½ length of prodorsum, without translamella; lamellar seta (le) ~length of lamella;10 pairs of notogastral setae (Fig. B49.3A) ..... Jornadia larreae Wallwork & Weems, 1984- Lamellae ~1/3 rd length of prodorsum and joined by narrow translamella; lamellar seta (le) morethan 2x length of lamella; 14 pairs of notogastral setae (Fig. B49.3B). .......................................................................................................................... Lucoppia burrowsii (Michael, 1890)387

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B49.34. Notogaster with 13 or 14 pairs of setae (Fig. B49.4A)............................................................. 5- Notogaster with 10 or 11 pairs of setae (Fig. B49.4B) ............................................................. 6388Figure B49.4

Almanac of Alberta Oribatida 2.3 13 January 20135. Translamella absent, lamellae shelf-like and broadening towards tip; rostrum rounded distally;notogastral setae fine; porose area Aa small (Fig. B49.5A) .............. Oribatula Berlese, 1896- Translamella present and usually distinct, lamellae various; rostrum rounded or mucronatedistally; notogastral setae various; porose area Aa small to large (Fig. B49.5B) ........................................................................................................................... Zygoribatula Berlese, 1917Figure B49.56. Genital plates with 3 or 4 pairs of setae (or alveoli); dorsosejugal suture reduced or absentmedialy (Fig. B49.6A) ............................................................................................................ 7- Genital plates with 2 pairs of setae; dorsosejugal region strong produced anteriorly andprojecting past insertions of interlamellar setae (in) (Fig. B49.6B) ............................................................................................................................... Diphauloppia Balogh & Balogh 1984389Figure B49.6

Almanac of Alberta Oribatida 2.3 13 January 20137. Genital plates with 4 pairs of conspicuous setae; prolamellar line connecting lamellar androstral setae; monodactyl (Fig. B49.7A) ................................................................................ 8- Genital plates with 3 pairs of alveoli or inconspicuous setae; prolamellar line absent; tridactyl(Fig. B49.7B) ......................................................................... Paraphauloppia Hammer, 1967Figure B49.78. Lamella narrow and interlamellar seta (in) inserted away from the medial margin of the lamellacloser to the midline (Fig. B49.8A) ...................................................Gerloubia Coetzer, 1968- Lamella rather broad and interlamellar seta (in) inserted on the medial margin of the lamella(Fig. B49.8B) ............................................................................... Liebstadia Oudemans, 1906Figure B49.8390

Almanac of Alberta Oribatida 2.3 13 January 20139. Notogaster reticulate; with more than 4 pairs of porose area; notogastral setae pilose or serrate.tarsus II. Femora III and IV with proximodorsal porose area in addition to paraxial porosearea (Fig. B49.9A) ........................................................................... Spinoppia Woolley, 1966- Notogaster not reticulate; with 4 pairs of porose areas; notogastral setae not pilose or serrate (Fig.B49.9B)................................................................................................................................. 10Figure B49.910. Humeral seta (c1) similar to other notogastral setae (Fig. B49.10A) ............................................................................................................................................... Phauloppia Berlese, 1908- Humeral seta (c1) thicker than other notogastral setae, blade-like, barbed on one side (Fig.B49.10B)............................................................................................ Eporibatula sp. 1 DEW391Figure B49.10

Almanac of Alberta Oribatida 2.3 13 January 2013Eporibatula Sellnick, 1928Diagnostic characters: Oripodoidea with 4 pairs of porose areas, 10-14 pairs of notogastral setaeincluding 1-2 pairs of modified humeral setae, pteromorphs absent, lamellae usually narrowor absent; dorsosejugal furrow interrupted medially; 4 pairs of genital setae; 2 pairs of analsetae; bo usually clavate to capitate; tridactyl.Also Known As: Phauloppia Berlese, 1908Type species: Eremaeus rauschensis Sellnick, 1908World species:

Almanac of Alberta Oribatida 2.3 13 January 2013Jornadia Wallwork & Weems, 1984 (ITIS 734425)Diagnostic characters: Oripodoidea without pteromorphs and with 4 pairs of porose areas and10 pairs of notogastral setae; 5-6 pairs of genital setaeAlso Known As: Woolleybates J & P Balogh, 1984Type species: Jornadia larreae Wallwork & Weems, 1984World species: 5 (including 2 undescribed)Comments:Canadian species listed on DOC (bold = AB): none**Jornadia larreae Wallwork & Weems, 1984 (RAM 99000029)Also Known As: Jornadia sp. 1 DEWABMI code/Common name: JORNSP1 / Creosote RoamerDiagnostic characters: 430-460 long. Prodorsum ~120 long, lamellae converging, reach slightlypast midpoint and with short prolamella; prodorsal setae densely barbed; interlamellar andlamellar setae similar in length (63-66), exobothridial (45) and rostral (50) shorter; sensillus(~60) with elongate, barbed club. Notogaster with strong dorsosejugal arch, bearing 10pairs of long (55-65), barbed setae, porose areas small, Aa-A1 (11) oval, A2-3 (~8)subcircular. 5 pairs genital setae; heterotridactylous.Overview: NB – on same slide as 2 specimens of Zygoribatula sp. 1.Barcodes:ID Check: Determination by DEW based on Wallwork & Weems (1984).Similar taxa: Jornadia dactyloscopica (Balogh & Mahunka, 1968)(Argentina); J. larreaeWallwork & Weems, 1984 (SW USA); J. longipilis Pérez-Íñigo & Baggio, 1991 (Brazil)ABMI Site Records: 2007: 1525. 2008: none. 2009: none. 2010: none. 2011: 1576.DOC (1/2008): [+other] Distribution:Images:Ecology: Gut bolus of single female specimen is of dark, granular material; 4 eggs.Literature: Wallwork & Weems (1984); Marshall et al. (1987).Lucoppia Berlese, 1908 (ITIS 734426)Diagnostic characters: Oripodoidea with 4 pairs of notogastral porose areas; humeral shelf verynarrow; tridactylous; (4)-5 pairs of genital setae; 14 pairs notogastral setae; short lamellaeand narrow translamella forming trapezoidal area in basal third of prodorsum.Also Known As: see Comments under species.Type species: Notaspis burrowsii Michael, 1890 (=Zetes lucorum Koch sensu Berlese, 1892) (butsee Marshall et al. 1987 for discussion)393

Almanac of Alberta Oribatida 2.3 13 January 2013World species: 4Comments:Canadian species listed on DOC (bold = AB): Lucoppia burrowsii (Michael, 1890); Lucoppialucorum (C.L. Koch, 1840); Lucoppia sp.*Lucoppia burrowsii (Michael, 1890) (ITIS 742451)Also Known As: Lucoppia lucorum (C.L. Koch, 1840) sensu Berlese, 1892 and subsequentauthors (see Phauloppia); Lucoppia burrowsi (Michael, 1890) [NB: final ‘I’ oftendropped]; Zygoribatula apletosa Higgins & Woolley, 1975ABMI code/Common name: LUCOBURDiagnostic characters: female ventral length 620-690. Prodorsum with short, faint lamellarridges and translamella; bo short with blackjack-like barbed club; in very long (203),densely barbed; le in pockets at tips of lamellae shorter (158), densely barbed. Notogasterrugose, with 14 pairs of densely barbed setae (95-125 long), setae on short humeral shelfsubequal; 4 pairs porose areas, Aa elongate oval, others smaller. Femur IV with elongatedorsal and short mid-ventral porose areas; 5 pairs genital setae (3+2).Overview: According to Subías (2004) Lucoppia burrowsii (Michael, 1890) has the followingsynonyms: Zygoribatula apletosa Higgins & Woolley, 1975; Romanobates maiensisChoi, 1995; Lucoppia orientalis Djaparidze, 1985; Zygoribatula spinosissima 1956.Barcodes:ID Check: Determination by DEW based on Grandjean (1950), (Weigmann 2006).Similar taxa: Similar to Phauloppia boletorum translamellar bridge present, sensillar clubnarrower, notogaster rugose (vs foveolate), and usually 5 pairs of genital setae (vs 4pairs).ABMI Site Records: 2007: none. 2008: 472, 719. 2009: none. 2010: none. 2011: 63, 93, 608.DOC (1/2008): [+other] Distribution: MB, ON, QC, NBImages:Ecology: Gravid females carry up to 16 eggs. Sobel et al. (2008) found this species (asPhauloppia lucorum) to be a relatively rare inhabitant in the canopy of oak, larch andspruce in a mixed temperate forest in Switzerland. Specimens (as L. lucorum) have beenfound in the feathers of birds in Russia, a possible means of long distance dispersal (seeKrivolutsky & Lebedeva 2004). Can be found on leaves and may be primarily arboreal.Literature: Gilyarov & Krivolutsky (1975); Weigmann (2006).394

Almanac of Alberta Oribatida 2.3 13 January 2013Oribatula Berlese, 1895 (ITIS 734430)Diagnostic characters: Oripodoidea with 4 pairs of notogastral porose areas; pteromorphsreduced to a small shelf; tridactylous; 4 pairs of genital setae; lamellae broadeninganteriorly.Also Known As: Zygoribatula (see below); Oribatula (Oribatula) (ITIS 734867)Etymology – oribat = mountain roaming; ula = littleType species: Notaspis tibialis Nicolet, 1855World species: 43Comments: This genus and some Zygoribatula with minimalist translamellae are easily confused.Canadian species listed on DOC (bold = AB): Oribatula pallida Banks, 1906; Oribatula sp.; O.tibialis (Nicolet, 1855)B50. Key to Oribatula in Alberta1. Body length under 450; notogaster rugose, ventral plate foveolate between genital and analshields (Fig. B50.1A)............................................................................... Oribatula sp. 1 DEW- Body length 460-530; plates shiny, microgranular (Fig. B50.1B) .................................................................................................................................................Oribatula tibialis (Nicolet, 1855)395Figure B50.1

Almanac of Alberta Oribatida 2.3 13 January 2013***Oribatula sp. 1 DEW (RAM 99000040)Also Known As: previously referred to as sp. nr. tibialisABMI code/Common name: ORIBTS1; Common name: Field RoamerDiagnostic characters: yellow brown, length 370-450. Prodorsum granular (microtuberculate)between lamellae, micropunctate on rostrum, with a small (~6) lateral porose area at levelof interlamellar setae and subsurface, cell-like reticulations above legs I; bo short (~40),club > ½ length; rim of bothridium with antero-median spur; in (68-80) barbed, insertionsabout as far apart (67) as those of le; le (~67) similar in length and ornamentation to in,inserted near tip of lamella; lamellae narrow (~5) basally and strongly widened at tip (~15)over hook-like pocket; translamella absent, interlamellar region slopes gradually to rostrum;ex (25) straight, barbed; rostrum rounded, ro (58) barbed. Notogaster very faintlymicropunctate, bearing 13 pairs (c1-2, da, dm, dp, la, lm, lp, h1-3, p1-px) of short (25-32),fine, curved, and lightly barbed setae and 4 pairs of porose areas; subporose area betweenc2-Aa; Aa oval (10-17), with thickened rim; sejugal region weakly arched. Ventral plategranulate, rugose and foveolate medially; all femora with elongate dorsolateral porose area;all tibiae with oval to somewhat elongate ventral porose area; tarsus I-IV with basal, ventralporose area.Overview: This species of Oribatula is widely distributed in Alberta and mostly feeds on fungalhyphae and spores, but is also an opportunistic predator on smaller invertebrates.Barcodes: 1618 (0, 658 x 2), 1637 (254, 652, 658)ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Wunderle et al.(1990); Weigmann (2006). 823 NE checked by VBP April 2008. This species is neartibialis and may be responsible for the record of that species in Alberta. Currently, theliterature on the genus is poor and widely dispersed, so species determinations are difficult,but this does not appear to be tibialis.Hemileius haydeni is most likely to be confused with Oribatula sp. 1 DEW, but the Oribatuladoes not have the submarginal groove on the notogaster and does have a submarginal groveon the ventral plate (lacking in Hemileius). Also, Oribatula is strongly foveolate ventrallyand has a distinct dorsosejugal suture (indistinct in Hemileius).Similar taxa: Oribatula sp. is reported from BC, ON, NS on the DOCABMI Site Records: 2007: 616, 646, 650, 823, 1149, 1150, 1252, UPL5. 2008: 314, 315, 899,1117, 1148, 1192, 1222, 1224, 1435, 1477, 1618, 1619, 1635, 1636, 1637, BOG2. 2009: 13,34, 882, 914, 949, 1277, 1303, 1305, 1511, 1512, 1530, 1531, 1550, 1556, 1567, 1568,1584, 1586, 1590, 1610, 1611, 1612, 1627, 72L-1, 72L-5, 72M-2, 72M-5, 82H-3. 2010:209, 924, 925, 957, 957, 1450, 1452, 1471, 1492, 1500, 1520, 1538, 1539, 1651, 1653,ALPAC-12. 2011: 451, 672, 983, 990, 1001, 1016, 1018, 1092, 1093, 1125, 1157, 1158,1184, 1185, 1216, 1217, 1218, 1246, 1304, 1334, 1480, 1559, OG-ABMI-1594-1, 1622,1623, 1638, OG-1122-1, OG-1282-1, OG-1283-1, OG-1334-1, OG-1455-1.DOC (1/2008): [+other] Distribution: unknown [Edmonton; Moose Pasture Research Site 8 kmW Chipman, AB; Kinsella; Lethbridge (49.684619°, -112.749009°)]Images: SEM (MP, 1150)396

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: This mite appears to be an undescribed species, is widely distributed in Alberta, andseems to do especially well in disturbed habitats including urban yards, field crops, andpasture. The mite is bisexual and gravid females may carry at least 8 eggs. Gut contentstypically consist of fungal hyphae and spores, but also may contain setose arthropod cuticleindicating opportunistic predation and/or scavenging.Literature: Marshall et al. (1987).Oribatula tibialis (Nicolet, 1855) (ITIS 742495)Also Known As: Notaspis tibialis Nicolet, 1855; Zygoribatula exilis sensu Buitendijk, 1945;Zygoribatula venustus sensu Buitendijk, 1945ABMI code/Common name: ORIBTIB; Common name: Tibial RoamerDiagnostic characters: Female length 460-530 (males 430-495); light yellow-brown; notogastershiny and finely granular, with gently rounded humeral blades bearing ta, 13 pairs setae(20-25 long), Aa the largest porose area, ~ 2x A1. Prodorsum with slight naso, bo short,with small elongate club ~in length to stipe; interlamellar seta subequal to lamellar seta,both longer than rostral seta or bo; lamellae broad at tip, bearing long, barbed le that passtip of rostrum, about 1/3 rd longer than ro; in

Almanac of Alberta Oribatida 2.3 13 January 2013Phauloppia Berlese, 1908Diagnostic characters: Large mites with short, faint lamellae and lacking translamella; 14 pairsof notogastral setae; 4 pairs porose areas; sensillus short, clubbed.Also Known As: Eporibatula Sellnick, 1928Type species: Zetes lucorum C.L. Koch, 1841 (see Marshall et al. 1987 for discussion)World species: 26Comments:Canadian species listed on DOC (bold = AB): Phauloppia boletorum (Ewing, 1913);Phauloppia sp.Phauloppia boletorum (Ewing, 1913)Also Known As: Lucoppia boletorum Ewing, 1913ABMI code/Common name: PHAUBOLDiagnostic characters: Ventral length 650-710. Prodorsum with short, capitate bo with denselybarbed club; in (135-140) long, densely barbed; le (83) about half as long at tips of shortlamellae; translamella absent; pair of porose areas postero-medial to bothridia. Notogasterevenly covered in small foveae and with 14 pairs of setae and 4 pairs of porose areas, Aaelongate oval, others smaller; short humeral shelf bearing relatively short (45-50), blunt anddensely barbed humeral seta and longer (85-113) tapering, acuminate and sparsely barbedseta; 4 pairs genital setae. Tibia and tarsus I with divided (2) ventral porose areas; tarsus Iwith dorsal porose area. Genu I with 3 setae (v present).Overview:Barcodes: EdMGHID Check:Similar taxa: Similar to Lucoppia burrowsii but lacks translamellar bridge, has a more roundedsensillar club, notogaster foveolate (vs rugose), and only 4 pairs of genital setae (vs 5 pairs).ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: [ex lichenOG1082-1SW]. 2012: none.DOC (1/2008): [+other] Distribution: AB, MB, ON, QC, NB, NS; [MN]; Edmonton River ValleyImages:Ecology:Literature: Marshall et al. (1987).Zygoribatula Berlese, 1916 (RAM 99000171)Diagnostic characters: Oripodoidea without pteromorphs and with linear, narrow lamellae andusually a distinct translamella; lamellae less than half length of prodorsum; 4 pairs ofporose areas, 10-14 pairs notogastral setae, 4 pairs genital setae.398

Almanac of Alberta Oribatida 2.3 13 January 2013Also Known As: Neoribatula Ewing, 1917; some species attributed to Oribatula (see above).Etymology – oribat = mountain roaming; zygo (G) = a yoke (in reference to the translamella); -ula (L) = littleType species: Oribatula connexa Berlese, 1904World species: 90.Comments:Canadian species listed on DOC (bold = AB): Zygoribatula bulanovae Kulijew, 1961; Z. exilis(Nicolet, 1855); Z. pyrostigmata (Ewing, 1909); Zygoribatula sp.B51. Key to Zygoribatula in Alberta1. Rostrum ends in a mucro; 14 pairs of notogastral setae (Fig. B51.1A) ..................................... 3- Rostrum rounded; 13 pairs of notogastral setae (p2 absent) (Fig. B51.1B) ................................. 2399

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B51.12. Notogastral setae well developed (30-35) and strongly barbed, c1 (30), barbed; in (50) similarin length to +/- sessile le (48) (Fig. B51.2A) ...................................... Zygoribatula sp. 4 DEW- Notogastral setae fine (15-25), with few barbs, c1 (15-18) simple; in (35-48) much shorter thanle (56-65) which is inserted on a short cusp (Fig. B51.2B) .............................................................................................................................................. Zygoribatula bulanovae Kulijew, 1961400Figure B51.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Body length >400; notogaster evenly granualte, with or without foveae, setae relatively long(28-70), porose area Aa more or less elongate oval; interlamellar setae long (75-90),extending well past the insertions of the lamellar setae ............................................................ 4- Body length 320-360, notogaster rugose, without foveae, notogastral setae very short, mostly

Almanac of Alberta Oribatida 2.3 13 January 2013lamella; ex (36) straight, barbed; rostrum with distinct mucro, ro (55) barbed. Notogasterwith even, granular ornamentation, faintly reticulate posteriorly, bearing 14 pairs (c1-2, da,dm, dp, la, lm, lp, h1-3, p1-3) of short (28-40), thick, straight, barbed setae and 4 pairs ofporose areas; Aa oval (15-20), with thickened rim; sejugal region strongly arched. Ventralplate granulate, somewhat rugose, and with a few irregular punctae medially; all femorawith elongate dorsolateral porose area; tibia I with two and tibiae II-IV each with one small,oval ventral porose area; tarsus I-IV with basal, ventral porose area.Overview: Does not fit couplet 5 in key in Franklin et al. (2008), but similar to Zygoribatulafloridana Fritz, 1982 (from Florida); possible new species.Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006);Bayartogtokh & Smelyansky (2008); Franklin et al. (2008). 1506 NW, SE checked by VBPApril 2008.Similar taxa:ABMI Site Records: 2007: 1254, 1506, 1525 (on slide with Jornadia sp. 1 DEW), 1526, 1544.2008: 1191, 1436, 1637. 2009: 1552, 1556, 1591, 1611, 1627, 1629, 1645, 72L-3. 2010:1443, 1452, 1472, 1486, OG-1484-1. 2011: 1050, 1094, 1125, 1186, 1218, 1247, 1304,1437, 1460, 1461, 1482, 1559, 1560, 1561, 1576, 1577, 1578, 1593, OG-ABMI-1594-1,OG-1218-1, OG-1455-1, OG-1640.DOC (1/2008): [+other] Distribution: [Kinsella] Zygoribatula sp. reported in AB, YT, BC, MB,ON, QC, NB, NSImages: SEM (1436)Ecology: Apparently an undescribed species, this mite is bisexual and gravid females carry up to5 eggs. It is especially abundant in the Medicine Hat region (Saamis being the Blackfootname for a medicine headdress of eagle feathers). Gut contents include pigmented fungalhyphae and spores (especially muriform spores).Literature: Gilyarov & Krivolutsky (1975); Weigmann (2006); Bayartogtokh & Smelyansky(2008) Franklin et al. (2008)***Zygoribatula sp. 2 DEW (RAM 99000058)Also Known As:ABMI code/Common name: ZYGOSP2; Sweet Grass Yoked-RoamerDiagnostic characters: brown, ventral length 410-450. Prodorsum with granular(microtuberculate) ornamentation, with a small (~6) lateral porose area at level ofinterlamellar setae; bo (56) with stalk and club similar in length; in (90) densely barbed,insertions farther apart (57) than those of le (47); le (88) similar in length andornamentation to in, inserted distally on short cusp; lamellae narrow (~3-5), slightlywidened at tip (~6), translamella distinct, somewhat narrow (~3-4) ; ex (40) straight,barbed; rostrum with distinct mucro, ro (55) barbed. Notogaster evenly granular and withstrong rugose-foveolate ornamentation, bearing 14 pairs (c1-2, da, dm, dp, la, lm, lp, h1-3,p1-3) of medium length (45-60), curved, barbed setae and 4 pairs of porose areas; Aa402

Almanac of Alberta Oribatida 2.3 13 January 2013elongate (22-24) oval, with thickened rim; A1 variable, but usually relatively large, oval;A2-3 much smaller; sejugal region shallowly arched. Ventral plate granulate and stronglyfoveolate; all femora with elongate dorsolateral porose area; all tibia with one small ventralporose area, that on tibia I 8-shaped (fused); tarsus I-IV with basal, ventral porose area.Overview: Keys to Zygoribatula heterotricha Mahunka, 1978 [=Oribatula (Zygoribatula)bonairensis bonairensis (Willmann, 1936) according to Subías (2008)] (from theNeotropics, South Africa, Texas) in Franklin et al. (2008).Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006);Bayartogtokh & Smelyansky (2008) Franklin et al. (2008). 1254 NE checked by VBP April2008.Similar taxa:ABMI Site Records: 2007: 1254, 1601, 1602, 1620. 2008: 1191, 1434, 1436, 1477. 2009: 1530,1567, 1584, 1646, 72L-1, 72L-3, 72L-4, 72L-5, 72M-2, 72M-5, 82H-1, 82H-2, 82H-3,82H-4, 82H-5. 2010: 1652, 1653, OG-1484-1. 2011: 1017, 1126, 1218, 1437, 1438, 1459,1460, 1461, OG-1160-1, OG-1338-1, OG-1455-1, OG-1640.DOC (1/2008): [+other] Distribution: Zygoribatula sp. reported in AB, YT, BC, MB, ON, QC,NB, NSImages: SEM (1620)Ecology: This mite is little known, especially abundant in the Sweet Grass Hills region, andapparently undescribed. Bisexual. Gut contents include fungal hyphae, spores, and dark andlight granular matter.Literature: Gilyarov & Krivolutsky (1975); Weigmann (2006); Bayartogtokh & Smelyansky(2008) Franklin et al. (2008).*Zygoribatula sp. 5 DEWAlso Known As:ABMI code/Common name: ZYGOACUDiagnostic characters: Ventral length 320-360. Prodorsum with interlamellar area elevated,rugose laterally, microtuberculate medially; translamella indistinct medially, withoutdistinct shelf; in (46-48) barely passing lamellar cusps, le (55) inserted on cusp with minutedens to either side, ro (48) directed anteriorly. Notogaster rugose, ridges irregular, oftenbranching; with 14 pairs of short, barbed setae: c1 (14), c21 (19), da (18), dm (18), dp (16),1a (18), 1m (17), 1a (18), im long (13-15), +/- between gland opening and dm.; Aa (10)oval to subcircular; A1 (12), A2 (9), A3 (6). All tarsi with basi-ventral porose areas; tibiaewith small sub-distal ventral porose areas, usually fused on tibia II.Overview: Oribatula acuminata Wallwork, 1964 originally described from Chad, is reportedfrom North America in Franklin et al. (2008) and keys to this species in their key.Barcodes:403

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006);Bayartogtokh & Smelyansky (2008), Franklin et al. (2008), Wallwork (1964).Similar taxa: Zygoribatula sp. 1 DEW.ABMI Site Records: 2007: none. 2008: none. 2009: 1612. 2010: none. 2011: none.DOC (1/2008): [+other]Images:Ecology: Bisexual, gravid females carry at least two eggs.Literature: Marshall et al. (1987); Gilyarov & Krivolutsky (1975); Weigmann (2006);Bayartogtokh & Smelyansky (2008), Franklin et al. (2008), Wallwork (1964).Zygoribatula bulanovae Kulijew, 1961 (RAM 99000059)Also Known As: Zygoribatula pallida sensu Hammer, 1952; Oribatula pallida sensu Gilyarov,1975;ABMI code/Common name: ZYGOBUL; Bulanova’s Yoked-RoamerDiagnostic characters: ventral length 330-420. Prodorsum with weak granular(microtuberculate) ornamentation, except micropunctate on rostrum and lineate inbo (~40) short, with club longer thanstalk; in (35-48) densely barbed, insertions a similar distance apart (43) to those of le (40);le (56-65) much longer than in, inserted distally on short (~5) lamellar cusp; lamellaenarrow (~5), not noticeably wider at tip, translamella thin to similar in width to lamella; ex(20) curved, smooth to lightly barbed; rostrum rounded, without mucro, ro (50-55) barbed.Notogaster weakly rugose, bearing 13 pairs (c1-2, da, dm, dp, la, lm, lp, h1-3, p1, p3) ofslender, fine (20-25), weakly barbed setae and 4 pairs of porose areas; Aa small (6-7)subcircular, with thickened rim; sejugal region shallowly arched. Ventral plate weaklyrugose, sometimes with a few foveae; all femora with elongate dorsolateral porose area;tibia I with two, tibiae II-IV with one small ventral porose area; tarsus I-IV with basal,ventral porose area, tarsus I with additional small medial porose area.Overview: Mentum tuberculate on BOG5 specimenBarcodes:ID Check: Determination by VBP April 2008 for 359 SW. Also see Marshall et al. (1987);Gilyarov & Krivolutsky (1975); Weigmann (2006); Bayartogtokh & Smelyansky (2008),Franklin et al. (2008).Similar taxa: Zygoribatula exilis (Nicolet, 1855) is reported from AK and parts of Canada. Thisspecies also has 13 pairs of notogastral setae, but has le the same length as in and a lineartranslamella. Zygoribatula sp. 4 DEW has thicker, more strongly barbed notogastral setae.ABMI Site Records: 2007: 359, 1603, BOG5, UPL7. 2008: SL10, SL12, SL13. 2009: 354.2010: none. 2011: 1605.DOC (1/2008): [+other] AB, YT, NU, NT, MB, QC, NF; [Moose Pasture Research Site 8 km WChipman, AB; AK; Palearctic]404

Almanac of Alberta Oribatida 2.3 13 January 2013Images:Ecology: Bisexual; gravid females can carry at least 5 eggs. Gut boli usually contain fungalhyphae and spores, but one male from the Moose Pasture Research Site 8 km W Chipman,AB also contains the entire body of a small tydeoid (?) mite.Literature: Marshall et al. (1987); Gilyarov & Krivolutsky (1975); Weigmann (2006);Bayartogtokh & Smelyansky (2008) Franklin et al. (2008).***Zygoribatula sp. 4 DEWAlso Known As:ABMI code/Common name: ZYGOSP4Diagnostic characters: ventral length 370. Prodorsum foveolate laterally, with rounded rostrumex (~30) strongly barbed; bo (~40)clubbed, barbed; in (50) similar in length to le (48). Notogaster microtuberculate, bearing13 pairs (c1-2, da, dm, dp, la, lm, lp, h1-3, p1, p3) of well developed (30-35) and stronglybarbed setae, c1 (30, c2 (35) and 4 pairs of porose areas; Aa oval (~10), with thickened rim,A1 (8), A2 (7), A3 (4); sejugal region shallowly arched. All femora with elongatedorsolateral porose area; tibiae I -IV each with one small ventral porose area; tarsus I-IIwith 2 basal porose areas, tarsi III-IV with a single basal porose area.Overview:Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006);Bayartogtokh & Smelyansky (2008), Franklin et al. (2008).Similar taxa: Zygoribatula bulanovae Kulijew, 1961 and Zygoribatula exilis (Nicolet, 1855) alsohas 13 pairs of notogastral setae.ABMI Site Records: 2007: none. 2008: none. 2009: 1612. 2010: none. 2011: none.DOC (1/2008): [+other]Images:Ecology: Bisexual. The one specimen on hand has gut contents composed of pigmentedmuriform fungal spores.Literature: Marshall et al. (1987); Gilyarov & Krivolutsky (1975); Weigmann (2006);Bayartogtokh & Smelyansky (2008) Franklin et al. (2008).Back to Table of Contents405

Almanac of Alberta Oribatida 2.3 13 January 2013Parakalummidae Grandjean, 1936 (ITIS 733549)Comments: True lamellae or lamellar lines are present and the pteromorphs do not have a seta.Neoribates (Berlese, 1914), Parakalumma Jacot, 1929B52. Key to some Parakalummidae1. Anterior edge of pteromorph rounded (Fig. B52.1A) ................................................................ 2- Anterior edge of pteromorph angular, pointed (Fig. B52.1B) ............. Parakalumma Jacot, 1929Figure B52.12. Ventral margin of pteromorph convex, lamellae well developed (Fig. B52.2A) .................................................................................................................................... Protokalumma Jacot, 1929- Ventral margin of pteromorph undulate, concave anteriorly, lamellae reduced to ridges (Fig.B52.2B)......................................................................................... Neoribates Berlese, 1914 (3)406Figure B52.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Four pairs of saccules usually present (Fig. B52.3A).................................................................. 4- Only Sa present; Europe (Fig. B52.3B) ................................. Neoribates roubali (Berlese, 1910)Figure B52.34. Saccules of normal size (Fig. B52.4A) ........................................................................................ 5- Saccules gigantic, as large or larger than dorsophragmata; 630-690 long; Japan (Fig. B52.4B) ...................................................................................... Neoribates macrosacculatus Aoki, 1966Figure B52.4407

Almanac of Alberta Oribatida 2.3 13 January 20135. Five pairs of genital setae (Fig. B52.5A)..................................................................................... 6- Four pairs of genital setae (saccule Sa elongate sock-shape; 464-645; Japan) (Fig. B52.5B) ......................................................... Neoribates aurantiacus (Oudemans, 1914) sensu Aoki (1966)Figure B52.56. Sensillus with a distinct club; Sa either elongate or sack-like but with an opening narrowerthan the diameter of the sack (Fig. B52.6A).............................................................................. 7- Sensillus setiform; length 830-900; Sa a large shallow sack with an opening about as broad asthe diameter of the saccule (Fig. B52.6B) ....................... Neoribates bulanovae Grishina, 2009Figure B52.67. Saccule Sa with diameter greater than length, bag-like; all adanal setae aligned with the marginof the ventral shield, ad3 well removed from anal shield (Fig. B52.7A) ................................ 12- Saccule Sa with length greater than diameter, sock-like; adanal seta ad3 inserted near andlateral to or anterior to anal plate (Fig. B52.7B) ....................................................................... 8408

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B52.78. Adanal seta ad3 inserted anterior to anal plate (Fig. B52.8A) .................................................... 9- Adanal seta ad3 inserted lateral to anal plate and near lyrifissure iad (Fig. B52.8B) .................................................................................................................................... Neoribates sp. 2 DEWFigure B52.89. Epimeral setae 1a distant from the genital aperture and 2a, 3a (Fig. B52.9A). ........................ 10- Epimeral setae 1a inserted near genital aperture, forming a line or cluster with 2a, 3a; 630-760(Fig. B52.9B) .................................................................................................................................................. Neoribates aurantiacus (Oudemans, 1914) sensu Grishina & Vladimirova (2009)409

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B52.910. Adanal setae ad1-2 much longer that the distance between their bases;

Almanac of Alberta Oribatida 2.3 13 January 201312. Dorsosejugal furrow smoothly procurved (Fig. B52.12A) ...................................................... 13- Dorsosejugal furrow angular, trapezoidal (Fig. B52.12B) ................................................................................................................................................... Neoribates borealis Vladimirova, 2009Figure B52.1213. Notogastral setae not evident; adanal setae ad1-2 much shorter than the distance betweentheir insertions 443-494; Mongolia (Fig. B52.13A) ............................................................................................... N. aurantiacus (Oudemans, 1914) sensu Bayartogtokh & Weigmann (2005)- Notogaster with microsetae; adanal setae ad1-2 as long as the distance between their insertions;570-650 long; Russia from the Ural Mts west to Siberia (Fig. B52.13B) ........................................................................................................................ Neoribates sibiricus Vladimirova, 2009Figure B52.13(Back to Key to Brachypylina)411

Almanac of Alberta Oribatida 2.3 13 January 2013Neoribates Berlese, 1914 (ITIS 734547)Diagnostic characters: shelf-like lamellae present; movable auricular pteromorphsAlso Known As: Parakalumma Jacot, 1929 and Protokalumma Jacot, 1929 are treated assubgenera by someType species: Galumna aurantiacus Oudemans, 1914World species: 21 spp. in the strict sense, including the Holarctic Neoribates aurantiacus(Oudemans, 1914) and N. quadrisetosus (Ewing, 1917) in eastern North America.Comments: Neoribates (Neoribates) (ITIS 73918)Canadian species listed on DOC (bold = AB): Neoribates aurantiacus (Oudemans, 1914);Neoribates sp.B53. Key to Neoribates in Alberta1. Dark brown mites; sensillus fusiform, barbed; interlamellar setae (138-170) longer thanlamellar setae (113-130); Sa sock-like, usually more or less pointed distally; ad3 insertedabout midpoint of anal shield (Fig. B53.1A) ........................................................................................................................................... Neoribates nr aurantiacus (Oudemans, 1914) Type 2- Light brown mites; sensillus barbed and with 2-3 longer distal barbs; interlamellar setae (122-135) subequal to lamellar setae (113-135); Sa usually more rounded, sack-like; ad3 insertedanterior to anal shield (Fig. B53.1B) .. Neoribates nr aurantiacus (Oudemans, 1914) Type 1Figure B53.1412

Almanac of Alberta Oribatida 2.3 13 January 2013*Neoribates aurantiacus (Oudemans, 1914) s.l. (ITIS 743592)Also Known As: Galumna aurantiacus Oudemans, 1914ABMI code/Common name: NEORAURDiagnostic characters:Type 1: ventral length 430-550, light brown colour; in & le subequal; bo with barbed, fusiformclub with two distal spines; Sa strongly sack-like, S1-3 usually narrow; adanal setae abouthalf as long as anal plates; 5 pairs genital setae.Type 2: ventral length 530-600, dark brown in colour. Prodorsum microtuberculate laterally,micropunctate on rostrum; bo (~90) with barbed, fusiform club rounded to pointed distally;in (138-170) acuminate, coarsely barbed, and much longer than similarly ornamented le(113-130); ro (~80) similar. Pteromorphs micropunctate; notogastral setae reduced toalveoli; Sa large (~35 long x 10 wide), sock-like, S1 bifurcate to T-shaped; S2-3 shallower,bifurcate and sack-like. Adanal setae (35-45) about half as long as anal plates (~80-85); 5pairs genital setae.Overview: Two somewhat distinct forms of Neoribates are present in Alberta: a dark brown mitewith a fusiform sensillus and a light brown mite with 2-3 spine-like processes at the tip ofthe sensillus. These may represent different species, but previous authors have consideredN. aurantiacus (Oudemans, 1914) to be a variable species and I have conservatively keptthese forms together until additional information (e.g. cox1) is available.Barcodes:ID Check: Determination by DEW based on Aoki (1966), Bayartogtokh & Weigmann (2005);Weigmann (2006), Grishina & Vladimirova (2009).Similar taxa: Neoribates quadrisetosus (Ewing, 1917) has two very long pairs of adanal setae(longer than the anal shields) and a C-shaped saccule (S1?). Type 1 more or less keys to N.aurantiacus in Grishina & Vladimirova (2009), but does not have the key characters.ABMI Site Records:Type 1: 2007: 276, 359, 360, 545, 586, 618, 857. 2008: SL21. 2009: 33, 539, 559, 728, 761,916. 2010: none. 2011: 93, 452, 1136, A635-1, A637-1, A757-2.Type 2: 2007: 360, BOG6, BOG7. 2008: 414, 688, BOG3. 2009: 1, 14, 32, 498, 537, 570.2010: 325, 353, 383. 2011: 93, 272, 422, A761-4.DOC (1/2008): [+other] Distribution: YT, NU, NT, MB, ON, QC, NB, NF; [Holarctic]Images: SEM (MP)Ecology: Bisexual: gravid females carry at least 6 eggs. A mite from mesophilous habitats andpeatlands. Subfossil specimens (6150 BP) have been reported from peat in NE Russia(Krivolutsky & Sidorchuk 2003).Literature: Aoki (1966); Marshall et al. (1987); Behan-Pelletier & Bissett (1994); Bayartogtokh& Weigmann (2005); Weigmann (2006); Grishina & Vladimirova (2009).Back to Table of Contents413

Almanac of Alberta Oribatida 2.3 13 January 2013Scheloribatidae Jacot, 1935 (ITIS 733542)(Back to Key to Oripodoidea)B54. Key to genera of Scheloribatidae in Alberta1. Without true pteromorphs, at most a shelf-like tectum present (Fig. B54.1A) ........................... 2- True pteromorphs present (Fig. B54.1B) ......................................... Scheloribates Berlese, 1908Figure B54.12. Claws heterotridactyl, but median claw not hooked (Fig. B54.2A) ............................................ 3- Median claw with a strong hook (Fig. B54.2B) ................ Paraleius Travé, 1960 (=Siculobata)Figure B54.23. Dorsosejugal furrow slightly arched; interlamellar seta (in) relatively short, about half thelength of the prodorsum; notogaster with or without submarginal furrow (Fig. B54.3A) .......................................................................................................................Hemileius Berlese, 1916- Dorsosejugal furrow straight; interlamellar seta (in) long, as long or longer than the prodorsum;notogaster without submarginal furrow (Fig. B54.3B) ............. Dometorina Grandjean, 1953414

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B54.3Dometorina Grandjean, 1951 (ITIS 734453)Diagnostic characters: Oripodoidea with 10 pairs of notogastral setae and 4 pairs of saccules,without pteromorphs; 4 pairs of genital setae, 2 pairs of anal setae; dorsosejugal furrowstraight; heterotridactyl; bo clubbed; lamellae narrow; pteromorph and humeral shelfabsent.Also Known As: very similar to Hemileius (see below)Type species: Oribatula plantivaga Berlese, 1895World species: 15Comments:Canadian species listed on DOC (bold = AB): Dometorina plantivaga (Berlese, 1895);Dometorina sp.*Dometorina plantivaga (Berlese, 1895) (ITIS 742695)Also Known As:ABMI code/Common name: DOMEPLADiagnostic characters: Ventral length 430-510; in (110-120), lamella (85) narrow, branchesaround bothridium, le (100-120) barbed, prolamella runs to barbed ro (75-90); bo (~50)short, with subglobose, barbed club; ex (20) barbed; dorsosejugal furrow straight;notogastral setae fine (30-45), smooth; S1 (~11 long) flask-shaped; heterotridactyl.415

Almanac of Alberta Oribatida 2.3 13 January 2013Overview:Barcodes:ID Check: Determination by DEW based on Wunderle et al. (1990).Similar taxa:ABMI Site Records: 2007: 217, 545. 2008: UPL1. 2009: 883. 2010: none. 2011: none. 2012:64NE.DOC (1/2008): [+other] Distribution: NB, NS, NF; [Moose Pasture Research Site 8 km WChipman, AB (53.656667, -112.759444), Edmonton River Valley, Holarctic]Images: SEM (MP, Edmonton River Valley)Ecology: This mite inhabits lichen on trees and has been reported from peatlands (Behan-Pelletier-Bissett, 1994). Sobel et al. (2008) found it to be fairly common and sometimesabundant in the canopy of beech, oak, larch and spruce in a mixed temperate forest inSwitzerland. Gravid females carry at least 6 large eggs.Literature: Marshall et al. (1987); Wunderle et al. (1990).Hemileius Berlese, 1916Diagnostic characters: Oripodoidea with 10 pairs of notogastral setae and 4 pairs of saccules,without pteromorphs; 4 pairs of genital setae, 2 pairs of anal setae; dorsosejugal furrowprocurved; heterotridactyl; bo clubbed to fusiform; lamellae narrow dorsally, sublamellaand prolamella present.Also Known As: Multioribates (haydeni in Higgins & Woolley 1975), Oribatula (pallida inHammer 1952), Hemileius (Tenuileius) Lee, Scheloribates (Hemileius) in Bayartogtokh etal. 2011.Type species: Protoribates (Scheloribates) initialis Berlese, 1908World species: 69Comments: The U-shaped submarginal notogastral groove, as in Hemileius (Tenuileius) minimusLee, 1989, may be present or absent.Canadian species listed on DOC (bold = AB): Hemileius quadripilis (Fitch, 1856); Hemileius sp.B55. Key to species of Hemileius in Alberta1. Notogaster without a distinct submarginal furrow .................................... Hemileius sp. 2 DEW- Notogaster with a submarginal furrow .............. Hemileius haydeni (Higgins & Woolley, 1975)416

Almanac of Alberta Oribatida 2.3 13 January 2013**Hemileius haydeni (Higgins & Woolley, 1975)Also Known As: previous called Hemileius sp. 1 DEWABMI code/Common name: HEMIHAYDiagnostic characters: female ventral length 410-430, males 400-410. Prodorsum smoothbetween lamellae and prolamellae; prolamella angled at insertion of le to insertion of ro;rostrum rounded; sensillus (~50-55) barbed, with fusiform club; bothridium producedpostero-laterally as broad, lineate tooth; in (75) coarsely barbed, somewhat longer thansimilarly ornamented le (70) and ro (~55). Notogaster evenly microtuberculate with distinctU-shaped, submarginal furrow; dorsosejugal furrow slightly procurved; humeral shelfminute; lyrifissure im elongate (~15-20); 10 pairs fine, smooth notogastral setae, anteriorsetae (25-30) longer than posterior (15-20) setae; saccules tubular within sack-like recess,Sa, S1, dorsal; S2, S3 postero-lateral. Ventral plate microtuberculate, with a few shallowlongitudinal folds; G-Ag-Ad-An formula 4-1-2-2, genital setae simple, others simple tosparsely barbed; iad paranal. Legs heterotridactylous, porose bands on femora I-IV, in distalhalf of tibiae I-IV, and basally on tarsus I-IV, leg setae mostly curved and barbed in dorsodistallyfor about 3/4 th length; apophysis of tibia I with 2 solenidia.Overview: This is the first report of this species in Canada. The mite was originally describedfrom a number of collections in high plains/aspen parkland around the town of Hayden,Colorado, USA. The two Alberta collections are from the extreme south near WatertonNational Park and above the middle of the Province near Slave Lake. Its apparent rarity isprobably due in part to its small size, since the ABMI samples only mites retained on a 0.3mm sieve.Barcodes:ID Check: Determination by DEW based on Higgins & Woolley (1975), RAN pers. comm.2009.Similar taxa: Hemileius quadripilis (Fitch, 1856) (reported from YT, NU, NT) is a larger mite(0.5 mm in length) with seemingly longer setae. The description of Hemileius haydeni(Higgins and Woolley, 1975) from Colorado makes no mention of the submarginalnotogastral groove and incorrectly lists 11 pairs of notogastral setae, but RAN (email 6 Oct2009) has observed types and confirms this appears to be the species.Hemileius haydeni is most likely to be confused with Oribatula sp. 1 DEW, but the Oribatuladoes not have the submarginal groove on the notogaster and does have a submarginal groveon the ventral plate (lacking in Hemileius). Also, Oribatula is strongly foveolate ventrallyand has a distinct dorsosejugal suture (indistinct in Hemileius).ABMI Site Records: 2007: none. 2008: SL11 (Slave Lake 55.54247, -114.82111). 2009: 1646(Twin Butte 49.026318, -111.064377). 2010: 151. 2011: 640, 1561, 1577, 1578.DOC (1/2008): [+other] Distribution: Hemileius sp. reported from YT, NU, NT, NSImages: SEM (1646)Ecology: Bisexual. Gut contents include hyaline hyphae, brown arthroconidia, and indistinctmaterial.Literature: Higgins & Woolley (1975), Marshall et al. (1987), Bayartogtokh et al. (2011).417

Almanac of Alberta Oribatida 2.3 13 January 2013**Hemileius sp. 2 DEWAlso Known As:ABMI code/Common name: HEMISP2Diagnostic characters: female ventral length 400.Overview:Barcodes:ID Check: Determination by DEW based on Bayartogtokh et al. (2011).Similar taxa: Hemileius haydeni is larger and has a well developed submarginal groove on thenotogaster.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011. none.DOC (1/2008): [+other] Distribution: Hemileius sp. reported from YT, NU, NT, NS [MoosePasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)]Images: SEM (MP)Ecology:Literature: Higgins & Woolley (1975), Marshall et al. (1987), Bayartogtokh et al. 2011.Liebstadia Oudemans, 1906Diagnostic characters: lamellae distinct and with sublamella and prolamella; four pairs ofnotogastral porose areas; humeral shelf present; 10 pairs notogastral setae; 4 pairs genitalsetae.Also Known As: Notaspis similis Michael, 1888Type species:World species:Comments:Canadian species listed on DOC (bold = AB): Liebstadia humerata Sellnick, 1928; L. similis(Michael, 1888); Liebstadia sp.Liebstadia similis (Michael, 1888)Also Known As: Notaspis similis Michael, 1888; Protoribates silesius Sellnick, 1925; Liebstadianr. similis (Michael) (Lindo & Visser 2004).ABMI code/Common name: LIEBSIMDiagnostic characters: 472-560 long; prodorsum with well developed sublamella, prolamella,and broad lamellae with long, barbed interlamellar setae inserted near median margins; bolanceolate to fusiform, barbed; notogaster with dorsosejugal suture obscure medially, 10pairs of relatively long, barbed dorsal setae, 4 pairs of porose areas, and short, unduate totoothed humeral shelves; 4 pairs genital setae; mondactyl.418

Almanac of Alberta Oribatida 2.3 13 January 2013Overview:Barcodes:ID Check: No vouchers have been examined.Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011. none.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, NF; [Holarctic]; [L. nr similis reported inLindo & Visser (2004)]Images:Ecology: Subfossil specimens (3250 BP) have been reported from peat in NE Russia(Krivolutsky & Sidorchuk 2003). Specimens have been found in the feathers of birds inRussia, a possible means of long distance dispersal (see Krivolutsky & Lebedeva 2004).Literature: Marshall et al. (1987); Wunderle et al. (1990); Bayartogtokh (2001).Paraleius Travé, 1960 (ITIS 734460)Diagnostic characters: Oripodoidea with saccules; pteromorphs absent; 4 pairs of genital setae;2 pairs of anal setae; dorsosejugal furrow arched; rostrum acuminate, without sublamella;tarsal claws monodactyl, with deep, narrow, strongly recurved hook; bo clubbedAlso Known As: Siculobata Grandjean, 1953Type species: Oribella leontonycha Berlese, 1910World species: 1Comments:Canadian species listed on DOC (bold = AB): Paraleius sp.*Paraleius leontonycha (Berlese, 1910) (ITIS 742786)Also Known As: Paraleius leontonychus (Berlese, 1910); Siculobata leontonycha (Berlese, 1910)ABMI code/Common name: PARALEODiagnostic characters: male ventral length 400; rostrum acuminate, ex (50) barbed, about a bitlonger than bo (45) with barbed, subglobose club; in (95-100), barbed; le (75), ro (70)long,barbed, subequal; notogastral setae fine (~25); heterotridactyl, lateral claws very fine,median claw with strong hook419

Almanac of Alberta Oribatida 2.3 13 January 2013Overview:Barcodes:ID Check: Determination by DEW based on Wunderle et al. (1990).Similar taxa:ABMI Site Records: 2007: 543. 2008: none. 2009: none. 2010: none. 2011. none.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB(53.656667, -112.759444); Holarctic]Images: SEM of Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)specimenEcology: An arboreal mite often found on tree bark or phoretic on bark beetles.Literature: Marshall et al. (1987)Scheloribates Berlese, 1908 (ITIS 734495)Diagnostic characters: sacculonotic, pteromorphs immovable, 10 pairs notogastral setaeAlso Known As: Megascheloribates Lee & Pajak, 1990; Paraschelobates Jacot, 1934;Protoschelobates Jacot, 1934; Semischeloribates Hammer, 1973; Storkania Jacot, 1929;Scheloribates (Scheloribates) Berlese, 1908 (ITIS 734889)Type species: Zetes latipes C.L. Koch, 1844World species: 211 spp. in Scheloribates (Scheloribates)Comments:Canadian species listed on DOC (bold = AB): Scheloribates laevigatus (C.L. Koch, 1835); S.lanceoliger (Berlese, 1908) [= fimbriatus Thor, 1930?]; S. nr. pallidulus (C.L. Koch, 1841);S. pallidulus (C.L. Koch, 1841); Scheloribates sp.; S. sp. nr. laevigatus (C.L. Koch, 1836)420

Almanac of Alberta Oribatida 2.3 13 January 2013B56. Key to adult Scheloribates in Alberta1. Notogaster without submarginal furrow ...................................................................................... 2-Notogaster with distinct submarginal furrow; ventral plate with incomplete submarginal furrow;c1 present, but vestigial (~2) ............................................................. Scheloribates sp. 3 DEW2. Body length under 0.5 mm, yellow brown in colour, notogaster finely granulate (Fig. B56.1A).............................................................................. Scheloribates pallidulus (C.L. Koch, 1841)- Body length over 0.5 mm, red brown in colour; notogaster with fine, branching longitudinalstriations (Fig. B56.1B) ........................................ Scheloribates laevigatus (C.L. Koch, 1836)421Figure B56.1

Almanac of Alberta Oribatida 2.3 13 January 2013*Scheloribates laevigatus (C.L. Koch, 1836) (ITIS 743031)Also Known As: Zetes laevigatus C.L. Koch, 1835ABMI code/Common name: SCHELAEDiagnostic characters: Body length 520-670; red brown in colour; notogaster with fine,branching longitudinal striations; bo fusiform;Overview: a semi-cosmopolitan species, probably synanthropic; known only from disturbed sitesin AlbertaBarcodes:ID Check: Determination by DEW based on Wunderle et al. (1990).Similar taxa:ABMI Site Records: 2007: none. 2008: 1083. 2009: none. 2010: 1472. 2011: 990, 1052, OG-1082-1, OG-1122-1.DOC (1/2008): [+other] Distribution: NU, NT; [Edmonton (Parkallen); Lake Wabamun;Holarctic]Images: SEM (Lake Wabamun)Ecology: This mite appears to be synanthropic in Alberta, since it has been collected only from abackyard, a recreational lake shore, and a field crop site where it was the only oribatidrecorded (1083). Subfossil specimens (3250, 6150 BP) have been reported from peat in NERussia (Krivolutsky & Sidorchuk 2003). Specimens have been found in the feathers ofbirds in Russia, a possible means of long distance dispersal (see Krivolutsky & Lebedeva2004). This mite also was reported as occurring in the hair of small mammals in Slovakia, apossible means of local dispersal, by Miko & Stanko (1991).Literature: Marshall et al. (1987); Wunderle et al. (1990).Scheloribates pallidulus (CL Koch, 1841) s.l. (ITIS 743076)Also Known As: Zetes pallidulus C.L. Koch, 1841ABMI code/Common name: SCHEPALDiagnostic characters: 370-440 long; bo (65-70) barbed, club ½ length, acuminate to blunt; invery long (100), sparsely barbed, extending well past lamellae ~le; ro > ½ le; notogastralsetae (10 pairs) short, simple; lamella branched basally around bothridium; femur II withbroad carina, femora III-IV with smaller carina; pedotectum II +/- rectangular, acuminate.Overview: This small Scheloribates (430-470 vs 520-670 for S. laevigatus) is yellow brown (vsred brown for S. laevigatus) and has the dorsosejugal furrow strongly arcuate and anteriormargin of pteromorph directed anteriad. There is some morphological variation incollections, especially in degree of sclerotization, and for example, saccules in 1635 NE aredifferent. This ‘species’ may represent a species complex.Barcodes: 374 (658 x 2), 412 (386, 658), 444 (620, 658 x 2)422

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Wunderle et al. (1990). 514 NW, SE checked byVBP April 2008.Similar taxa:ABMI Site Records: 2007: 276, 277, 330, 331, 358, 359, 388, 389, 512, 514, 543, 545, 586, 601,616, 618, 664, 665, 792, 823, 825, 857, 1103, 1133, 1135, 1601, BOG6, UPL4. 2008: 344,374, 375, 412, 444, 472, 690, 719, 867, 899, 901,934, 974, 975, 1379, 1635, FM04, FM07,UPL1. 2009: 1, 2, 13, 32, 34, 529, 537, 570, 699, 759, 760, 883, 1491, 1493, 1510. 2010:325, 352, 354, 384, 890, 892, 909, 910, 1035, 1037, 1170, 1171, 1207, 1208, 1239, 1429,1471, ALPAC-9, ALPAC-16, OG-910-1, OG-943-1, OG-972-1, OG-1005-1, OG-1069-1,OG-1352-1. 2011: 63, 65, 302, 481, 483, 1001, 1071, 1126, 1137, 1138, 1231, A635-1,A702.OS, A761-2, OG-1275-1.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, MB, QC, NF; [Holarctic]Images: SEM (Meanook)Ecology: Bisexual: gravid females carry up to 4 eggs. Gut contents include pigmented andunpigmented fungal hyphae, spores, bits of organic material, and the cuticle of smallarthropods. This mite has been collected from moss, decaying wood, stumps (vs. reeds,bogs, moist meadows, moist forest soil for S. laevigatus); mesophilous in peatlands.Literature: Marshall et al. (1987); Wunderle et al. (1990).*Scheloribates sp. 3 DEW (xxxxxx)Also Known As: ABMI code/Common name: SCHESP3Diagnostic characters: Body length 400-430; red brown in colour; notogaster with U-shapedsubmarginal furrow; 14 pairs of fine, short (mostly ~12) dorsal setae, c1 present butvestigial (~2); bo fusiform; submarginal groove present laterally on ventral plate.Overview:Barcodes:ID Check: Determination by DEW based on Wunderle et al. (1990).Similar taxa: Scheloribates (Topobates) circumcarinatus Weigmann & Miko, 1998, but muchsmaller (400-430 vs 470-510) and c1 present as vestigial seta.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution:Images:Ecology: Bisexual; gut contents include brown hyphae, spores and possible nematodes.Literature: Marshall et al. (1987); Wunderle et al. (1990), Weigmann & Miko (1998).Back to Table of Contents423

Almanac of Alberta Oribatida 2.3 13 January 2013Ceratozetoidea Jacot, 1925 (ITIS 733381)(Back to Key to Brachypylina)B57. Key to Families of Ceratozetoidea in Alberta1. Without posterior notogastral tectum (Fig. B57.1A) ............................................. Ceratozetidae-With divided or entire posterior notogastral tectum (Fig. B57.1B) .............................................. 2Figure B57.12. Lamellar seta inserted on lamellar cusp (Fig. B57.2A) ............................................................... 3- Lamellar seta inserted on prodorsum at base of tooth-like lamellar cusp (Fig. B57.2B)............................................................................................................................ ChamobatidaeFigure B57.2424

Almanac of Alberta Oribatida 2.3 13 January 20133. Tarsus I usually monodactyl, tarsus IV tridactyl; notogaster with lenticulus and with or withoutporose areas; lamellar cusps cylindrical, translamella absent; associated with aquatic sites,sphagnum bogs, and other wet areas (Fig. B57.3A) ............................................. Zetomimidae- Tarsi I and IV both monodactyl or both tridactyl; notogaster with lenticulus present or absent,porose areas or saccules present; lamellar cusps various, translamella present or absent (Fig.B57.3B).................................................................................................................. MycobatidaeFigure B57.3Ceratozetidae Jacot, 1925 (ITIS 733525)B58. Key to the Genera of Ceratozetidae in Alberta1. Lamellae closely inserted medially, touching or separated by a translamella shorter than thediameter of the sensillar club; lenticulus present (Fig. B58.1A) ............................................... 2- Lamellae various, but widely separated at tips, with or without a well developed translamella;lenticulus present or absent (Fig. B58.1B) ................................................................................ 3425

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B58.12. Pedotectum I convex dorsally; anterior margin of pteromorphs without lineate-reticulatepatterns (but pedotectum I lineate); lamellar cusps broad, joined by a short translamella attheir base, and with large, lateral tooth; 4-5 pairs of genital setae (Fig. B58.2A) ..................................................................................................... Latilamellobates baloghi (Mahunka, 1983)- Pedotectum I saddle-shaped dorsally; anterior margin of pteromorph with strong linear to linearreticulate ornamentation; lamellar cusps either somewhat narrow and rounded or broad anddenticulate; 6 pairs of genital setae (Fig. B58.2B) ........................... Dentizetes Hammer, 1952426Figure B58.23. Tutorial cusp broad, lamelliform, acuminate, dentate, sinuate, or undulate distally; bothridiumcup-shaped, with or without a ventro-median scale (Fig. B58.3A) ........................................... 4- Tutorial cusp narrow and tapering to a drawn-out point; bothridium with well developed lateraland median scales (Fig. B58.3B) ............................................................................................... 8

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B58.34. Translamella present, lamellar cusps well developed (Fig. B58.4A) .......................................... 5- Translamella absent, lamellar cusps short and cylindrical or absent (Fig. B58.4B) ..................... 7Figure B58.45. Notogaster with 10-11 pairs of setae (+/- dp near midline anterior to h1 and mediad h2) (Fig.B58.5A) ......................................................................................... Trichoribates Berlese, 1910- Notogaster with 13 pairs of setae (da, dm, dp present) (Fig. B58.5B) ......................................... 5427

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B58.56. Pteromorphs movable, with line of desclerotization; notogastral porose area Aa usuallyelongate and narrow, rarely oval (Fig. B58.6A) ..................... Diapterobates Grandjean, 1936- Pteromorphs immovable; notogastral porose area Aa subcircular (in known AB spp.); sensilluselongate or truncate; notogaster finely (luteus) or coarsely (sp. 1 DEW) rugose (Fig. B58.6B)..................................................................................................... Neogymnobates Ewing, 1917Figure B58.6428

Almanac of Alberta Oribatida 2.3 13 January 20137. Short lamellar cusps present; pteromorph immovable; tutorium with 3-5 teeth; porose areasA1-2 closely produced, sometimes fused (Fig. B58.8A) .... Svalbardia paludicola Thor, 1930- Lamellar cusps absent; pteromorph movable posteriorly; tutorium with undualte margin; poroseareas A1-2 well separated (Fig. B58.8B) ........................... Iugoribates gracilis Sellnick, 1944Figure B58.7Bothridium with well developed lateral and median scales8. Anterior median notogaster without a lenticulus; setae and porose areas not surrounded bydarker cuticle; femora I-II without ventral carina (Fig. B58.8A) .............................................. 9- Notogaster with lenticulus and either the setae or porose areas surrounded by darkly pigmentedcuticle; femora I-II with ventral carina (Fig. B58.8B) ..................... Fuscozetes Sellnick, 1928429

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B58.89. Translamella present (Fig. B58.9A) ................................................. Sphaerozetes Berlese, 1885- Translamella absent (in known AB spp.) (Fig. B58.9B) ......................Ceratozetes Berlese, 1908Figure B58.9Ceratozetes Berlese, 1908 (ITIS 734347)Diagnostic characters: Notogaster with fixed pteromorphs, 10 or 11 pairs of notogastral setae,and usually 4 pairs of porose areas, A1 displaced medially or +/- in line with others.Prodorsum with converging lamellae with distinct cusps, with or without a small lateraltooth (median tooth never present); tutorium often with small dorsal teeth and with freedistal cusp; bothridium with 3 scales; rostrum usually with 2-3 teeth distally.430

Almanac of Alberta Oribatida 2.3 13 January 2013Also Known As: Ceratozetella Shaldybina, 1966 (ITIS 734346); Ceratozetes (Ceratozetes) (ITIS734826)Type species: Oribata gracilis Michael, 1884World species: ~21 in North America; ~60 worldwide.Comments: Species with a lateral tooth on the lamellar cusp and 10 pairs of notogastral setae areplaced in Ceratozetella Shaldybina, 1966 by some authors and some species have beentransferred to Cyrtozetes Behan-Pelletier (Behan-Pelletier & Eamer in press). Ceratozetescisalpinus Berlese, 1908 (known from Ontario and the eastern USA) is sometimes placed inCeratozetoides Shaldybina, 1966 or Ceratozetella Shaldybina, 1966.Canadian species listed on DOC (bold = AB): Ceratozetes borealis Behan-Pelletier, 1984; C.cuspidatus Jacot, 1939; C. fjellbergi Behan-Pelletier, 1986; C. gracilis (Michael, 1884); C.inupiaq Behan-Pelletier, 1986; C. kananaskis Mitchell, 1976; C. kutchin Behan-Pelletier,1986; C. mediocris Berlese, 1908; C. oresbios Behan-Pelletier, 1984; C. pacificus Behan-Pelletier, 1984; C. parvulus Sellnick, 1922; C. peritus Grandjean, 1951; C. spitsbergensisThor, 1934; C. thienemanni Willmann, 1943; C. virginicus (Banks, 1906); C.watertonensis Behan-Pelletier, 1984B59. Key to adult Ceratozetes in and near Alberta(based on Behan-Pelletier (1984, 1985, 1986); Behan-Pelletier & Eamer (2009))1. Notogastral seta c3 present on pteromorph (2 setae anterior to Aa) (Fig. B59.1A) .................... 2- Notogastral seta c3 absent (Fig. B59.1B) ..................................................................................... 7Figure B59.12. Tutorial cusp short of or just reaching insertion of ro; prodorsal porose area Ad present (Fig.B59.2A) ..................................................................................................................................... 3- Tutorium extending well beyond insertion of ro; Ad absent; in just passing lamellar cusps;psdm with concave anterior margin; 430-690 (Fig. B59.2B) ............................................................................................................................................... Ceratozetes gracilis (Michael, 1884)431

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B59.23. Interlamellar setae reaching or passing base of lamellar cusps (Fig. B59.3A) ........................... 4- Interlamellar setae very short, not reaching base of lamellar cusps; tutorial cusp reachinginsertion of ro; median rostral tooth 1/4-1/3 length of lateral teeth; notogastral setae 12-18long, sdm thumb-like, psdm convex, with notches to either side; 441-544 long; YT, AK (Fig.B59.3B)........................................................................ Ceratozetes borealis (C.L. Koch, 1836)432Figure B59.3

Almanac of Alberta Oribatida 2.3 13 January 20134. Genua I-II without ventral spur; femur II without ventral carina; tutorial cusp reaches or passesinsertion of ro (Fig. B59.4A) ..................................................................................................... 5- Genua I-II with ventral spur; femur II with ventral carina & cusp; tutorium short, cusp does notreach insertion of ro; lamellar cusps short; Aa usually elongate; 360-448; Holarctic (Fig.B59.4B).............................................................................Ceratozetes mediocris Berlese, 1908Figure B59.45. Rostrum with 2-3 distinct teeth; lateral scale of bothridium larger than median scale;notogastral c2-3 setae relatively short (3-5 or ~11, c3 16); interlamellar setae normallyinserted (

Almanac of Alberta Oribatida 2.3 13 January 20136. Rostrum with large median tooth ~half length of lateral teeth; all notogastral setae very short(3-5); Aa relatively large and with concave anterior margin; 505-544; Waterton Lakes AB(Fig. B59.6A) ...................................................................................................................................................................................................... Ceratozetes watertonensis Behan-Pelletier, 1984- Rostrum without large median tooth; notogastral setae longer, most 11-16, c2-3 15-24; Aasmaller, suboval, anterior margin rarely concave; 360-434; Kananaskis, Cypress Hills,Waterton Lakes AB (Fig. B59.6B) .............................. Ceratozetes kananaskis Mitchell, 1976Figure B59.6Ceratozetes with notogastral seta c3 absent (10 pairs notogastral setae)7. Tridactyl (Fig. B59.7A) ............................................................................................................... 8- Monodactyl (Fig. B59.7B) ......................................................................................................... 11434Figure B59.7

Almanac of Alberta Oribatida 2.3 13 January 20138. Median lobe of bothridium rounded, without teeth (Fig. B59.8A) ............................................. 9- Median lobe of bothridium with 1-2 teeth; humeral region strongly tuberculate; notogastralsetae minute lamellar cusps widely separated and with lateral dens; custodium very long;421-473; YT, AK (Fig. B59.8B) ............................................. Ceratozetes fjellbergi B-P, 1986Figure B59.89. Rostrum smooth or with parallel prolamellae; anterior margin of notogaster evenly curving,without small projecting tectum (Fig. B59.9A) ....................................................................... 10- Rostrum with patch of strong wrinkles or lineae; anterior margin of notogaster with smalltectum posteriad bothridium; faint pebbly ornamentation in humeral region; 420 long (Fig.B59.9B)................................................................................. Ceratozetes enodis (Ewing, 1909)Figure B59.9435

Almanac of Alberta Oribatida 2.3 13 January 201310. Without translamella; rostrum with prolamellar ridges; tutorium with slender, needle-likecusp; bo elongate club; 300-380; widespread (Fig. B59.10A) ............................................................................................................................................... Ceratozetes cuspidatus Jacot, 1939- With strong translamella; rostrum without prolamellar ridges; tutorial cusp broad, knife-like; boshort club; 308-356; YT (Fig. B59.10B) .................................................................................................. Cyrtozetes (formerly Ceratozetes) inupiaq B-P, 1986; see also Cyrtozetes sp. 1 DEWFigure B59.10Monodactyl Ceratozetes11. Bothridial margin rounded, without teeth; lamellae without lateral dens; cusp of tutorium fallsshort of insertion of ro (Fig. B59.11A) ................................................................................... 11- Bothridial margin with several teeth (on large svm); lamellae with small lateral dens; cusp oftutorium extends beyond insertion of ro (Fig. B59.11B) ............................................................................................................................................ Ceratozetes thienemanni Willmann, 1943436

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B59.1112. Lamellae with translamella, microtuberculate ornamentation (interlamellar region smooth),and broad, long cusps; rostrum with pair of prolamellae; A1 in normal position; 300-356; YT(Fig. B59.12A) ............................................................................ Ceratozetes kutchin B-P, 1986- Without translamella (but with procurved depression in front of lamellae); interlamellar regionwith rugose texture; lamellar cusps very short; rostrum without prolamellae; porose area A1mediad others, anteriad lp; 268-320; Holarctic (Fig. B59.12B) ............................................................................................................................................ Ceratozetes parvulus Sellnick, 1922437Figure B59.12

Almanac of Alberta Oribatida 2.3 13 January 2013Ceratozetes cuspidatus Jacot, 1939 (ITIS 741918)Also Known As: Ceratozetes gracilis cuspidatus Jacot, 1939ABMI code/Common name: CERACUSDiagnostic characters: ventral length 300-380; 10 pairs notogastral setae; tridactyl; femur IIIwith 2 setae; in not reaching tip of lamellar cusps; Ad present; tutorium passing insertion ofro; prolamella run from lamellar cusps along rostrum.Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1984, 1985, 1986); Behan-Pelletier& Eamer (2009). 512 SE, 1134 SW checked by VBP April 2008.Similar taxa: Ceratozetes fjellbergi is larger (421-473), has widely spaced lamellae andinterlamellar setae that extend beyond the cusps.ABMI Site Records: 2007: 330, 359, 388, 473, 512, 649, 650, 825, 857, 1134. 2008: 343, 345,866, 933 (on thienemanni slide), 975 (on thienemanni slide), BOG1. 2009: 1491. 2010: 892,1237, 1239, ALPAC-12, ALPAC-16. 2011: 672, 1105, 1125, 1136, 1137, 1218, 1238.DOC (1/2008): [+other] Distribution: AB, BC, SK, ON, QC, NB, NS, PE, NF; [Moose PastureResearch Site 8 km W Chipman, AB (53.656667, -112.759444)]Images:Ecology: Only females are known and the species is probably parthenogenetic (thelytokous).Literature: Behan-Pelletier (1984); Marshall et al. (1987).*Ceratozetes cf enodis (Ewing, 1909) (ITIS 741919)Also Known As: Oribata enodis Ewing 1909ABMI code/Common name: CERAENODiagnostic characters: 420 long; rostrum rounded with a large tooth on either side and densepatch of wrinkles in front of lamellae; tutorium is pointed and goes well past the rostralsetal insertion; interlamellar setae exceed the lamellar cusps; notogaster with 10 pairs ofsetae (seta c barbed) and small procurved tectum just behind bothridium; porose areas looklike sieve plates; A1 is well mediad A2; large porose area on the ventral plate behind theanal opening; 3 pairs of genital setae are on the anterior margin of the shields.Overview: This mite is very similar to Ceratozetes enodis (Ewing, 1909), but appears to have amedian ridge on the rostrum as in an undescribed species from the SW US.Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1984, 1985, 1986); Behan-Pelletier& Eamer (2009).Similar taxa: An undescribed species of Ceratozetes is similar.ABMI Site Records: 2007: none. 2008: 1222. 2009: none. 2010: none. 2011: OG-ABMI-1594-1.438

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: [ON, eastern USA].Images: LMEcology: Bisexual. The single female specimen on hand has a gut bolus composed of dark fungiand one egg.Literature: Behan-Pelletier & Eamer (2009).Ceratozetes gracilis (Michael, 1884) s.l. (ITIS 741923)Also Known As: Oribata gracilis Michael, 1884ABMI code/Common name: CERAGRADiagnostic characters: ventral length (430) 473-635; 11 pairs of minute notogastral setae (11-in reaching or passing lamellar cusps; tridactyl; psdm withconcave anterior margin; tutorium passing insertion of ro.Overview: Ceratozetes gracilis (Michael) is a medium-sized mite (0.473-0.635 mm in length)with adults that are usually red brown in colour. This Holarctic mite is the type species forthe genus and the most common species of Ceratozetes in boreal forest and aspen parklandin Alberta. Morphology, size range, and DNA haplotypes are variable and it is possible thatfuture analyses may indicate that a species complex is present.Barcodes: 316 (391, 643, 658), 344 (395, 397, 398), 868 (658 x 3), 975 (395, 396), 1043 (658 x3), 1379 (658 x 3)ID Check: Determination by DEW based on Behan-Pelletier (1984, 1985, 1986); Behan-Pelletier& Eamer (2009). 600 NE, SE checked by VBP April 2008.Similar taxa: Ceratozetes borealis (441-544) and C. watertonensis (505-544) are similar in sizebut both have well developed Ad and the former has short, fine interlamellar setae; the latterhas striate lamellae and the tutorium just reaches the insertion of ro. Ceratozetes mediocrisand C. kananaskis are smaller and both have a short tutorium that does not reach (C.mediocris) or just reaches (C. kananaskis) the insertion of the rostral seta. Ceratozetesoresbios is much smaller (

Almanac of Alberta Oribatida 2.3 13 January 2013A637-2, A692-1, A692-2, A757-1, A757-2, A761-1, A761-2, A761-3, OG-1082-1, OG-1212-1, OG-1248-1, OG-1331-1, OG-1334-1, OG-1248-1, OG-1275-1.DOC (1/2008): [+other] Distribution: AB, YT, BC, SK, MB, ON, QC, NB, NS, NF [MoosePasture Research Site 8 km W Chipman, AB (53.656667, -112.759444); Holarctic]; [Lindo& Visser (2004)]Images: SEM (MP)Ecology: This mite was an inhabitant primarily of the fermentation and humus layers of an aspenwoodland (Mitchell 1978). Field collected animals had gut contents showing a preferencefor pigmented vs hyaline hyphae. In the laboratory, adults fed on all but one of the fungi onoffer, including Cladosporium cladosporioides, Mortierella hygrohila, Paecilomycesfarinosus, Penicillium syriacum, Phoma exigua, and an unidentified pigmented hypha;Trichoderma viride was not eaten, a finding also reported by Luxton (1972), althoughHartenstein (1962) was able to maintain the mite on Trichoderma koningi. When feeding onPhoma exigua, C. gracilis had the highest reproductive success, P. syriacum and thepigmented hypha supported moderate reproduction, and the other fungi yielded only a fewoffspring (Mitchell & Parkinson 1976). A male specimen from A761-2 has a completenematode in its guts as well as fragments of pigmented hyphae and arthropod cuticle andsetae.Literature: Behan-Pelletier (1984); Mitchell & Parkinson (1976); Mitchell (1978); Marshall etal. (1987); Klironomos & Kendrick (1995); Lindo & Visser (2004); Cianciolo & Norton(2006).Ceratozetes cf kananaskis Mitchell, 1976 (ITIS 741928)Also Known As:ABMI code/Common name: CERAKANDiagnostic characters: Ventral length 360-434; 11 pairs short notogastral setae; Ad present; injust reach tip of lamellar cusps; lamellae without striations; bo very short; tutorium does notreach insertion of ro; tarsus I with 19 (2), v’ absentOverview: Ceratozetes kananaskis Mitchell is a relatively small mite (0.36-0.44 mm long) thatfeeds on dark and unpigmented fungal hyphae and spores in the fermentation and humuslayers of aspen and other forests in the Rocky Mountain Region.Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1984, 1985, 1986); Behan-Pelletier& Eamer (2009). 1378 NE 49 checked by VBP October 2008 – somewhat atypical, butspecies is variableSimilar taxa:ABMI Site Records: 2007: none. 2008: 1354, 1378, 1403. 2009: 1510. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB (Kananaskis, 1400 m, 51°02’N, 105°01’W)Images:440

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: Bisexual: gravid females carry 2-3 large eggs. Gut contents include dark andunpigmented hyphae and spores. This mite was an inhabitant primarily of the fermentationand humus layers of an aspen woodland (Mitchell 1978). Field collected animals had gutcontents with a preference for pigmented vs hyaline hyphae. In the laboratory, adults fed onall of the fungi on offer, including Cladosporium cladosporioides, Mortierella hygrohila,Paecilomyces farinosus, Penicillium syriacum, Phoma exigua, Trichoderma viride, and anunidentified pigmented hypha; however, only P. exigua supported a high reproductivesuccess (Mitchell & Parkinson 1976).Literature: Mitchell (1976, 1977a, b, 1978); Mitchell & Parkinson (1976); Behan-Pelletier(1984); Marshall et al. (1987).Ceratozetes mediocris Berlese, 1908 (ITIS 741935)Also Known As:ABMI code/Common name: CERAMEDDiagnostic characters: Ventral length 360-448; microtuberculate; 11 pairs medium lengthnotogastral setae; lamellar cusps short; in extending well beyond cusps; Ad present;tutorium not reaching base of ro; genua I-II with ventral spur; femur II with ventral carinaOverview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1984, 1985, 1986); Behan-Pelletier& Eamer (2009). 1435 NE 62 checked by VBP 22 October 2008.Similar taxa:ABMI Site Records: 2007: none. 2008: 1116, 1190, 1191, 1222, 1435. 2009: none. 2010: none.2011: 958, 1050, 1058, 1126, 1158, OG-1054-1, OG-1283-1.DOC (1/2008): [+other] Distribution: AB, SK, MB, ON, QC, NB, NS; [Holarctic]Images:Ecology: Gravid females have two large eggs.Literature: Menke (1966); Mitchell (1978); Behan-Pelletier (1984); Marshall et al. (1987).Ceratozetes oresbios Behan-Pelletier, 1984Also Known As:ABMI code/Common name: CERAOREDiagnostic characters: in-in; in pass cusp tips; bo short;Overview:Barcodes:ID Check:441

Almanac of Alberta Oribatida 2.3 13 January 2013Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: ABImages:Ecology:Literature: Behan-Pelletier (1984); Marshall et al. (1987).Ceratozetes parvulus Sellnick, 1922 (ITIS 741947)Also Known As:ABMI code/Common name: CERAPARDiagnostic characters: female ventral length 268-308 (320); 10 pairs relatively long notogastralsetae; tutorium short, broad, short cusp not reaching ro; lamellae broad, subparallel, withvery short cusps; curved internal band between cusps; in reaching to or beyond cusps; Adnot discrete; bo short, densely barbed, oval club; bothridium with strong median spur;monodactyl.Overview: Doesn’t look like other Ceratozetes; has posterior notogastral tectum. Type has beendestroyed.Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1984, 1985, 1986); Behan-Pelletier& Eamer (2009). 515 SE checked by VBP April 2008.Similar taxa: C. thienemanniABMI Site Records: 2007: 515. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: YT, NU, NT, AB, MB, ON, QC, NB, NF; [Holarctic]Images:Ecology: A Holarctic mite of arctic, subarctic and boreal habitats including peatlands.Literature: Marshall et al. (1987); Behan-Pelletier (1994).Ceratozetes thienemanni Willmann, 1943 (UBIO 96754950)Also Known As: Ceratozetella thienemanni (Willmann, 1943)ABMI code/Common name: CERATHIDiagnostic characters: female ventral length 402-421 (AB 350-400); monodactyl; lamellae withlateral dens; 10 pairs medium notogastral setae; rostrum with minute median tooth;tutorium passes insertion of ro; in pass lamellar cusp; bothridium with strong medial toothand usually smaller teeth on rim; bo bent mediad, with elongate, barbed club.Overview:.442

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1984, 1985, 1986); Behan-Pelletier& Eamer (2009). 1068 NW, 1134 SW checked by VBP April 2008. Some authors treatspecies of Ceratozetes with 10 pairs of dorsal setae and lamellae with a lateral dens asCeratozetella Shaldybina, 1966; however, I am following Behan-Pelletier (1984) in notrecognizing Ceratozetella.Similar taxa: Ceratozetes kutchin has a translamella; C. parvulus has very short (8) lamellarcusps; C. cuspidatus is tridactyl.ABMI Site Records: 2007: 217, 359, 600, 664, 857, 1068, 1133, 1134, BOG7. 2008: 343, 720,868, 932, 933 (also cuspidatus), 934, 975 (also cuspidatus), 1141, 1353, UPL1, UPL2.2009: 497, 538. 2010: 1201, 1203, 1208, 1209, ALPAC-9, ALPAC-10, ALPAC-13, OG-1005-1, OG-1136-1, OG-1154-1. 2011: 672, 1072, A635-1.DOC (1/2008): [+other] Distribution: YT, NU, NT, AB, MB, ON, QC, NB, NS, NF [MoosePasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)]Images:Ecology: This is a widespread species of temperate, boreal and subarctic habitats. Only femalesare known and the species is probably parthenogenetic (thelytokous).Literature: Menke (1967); Marshall et al. (1987); Lindo & Stevenson (2007).Ceratozetes watertonensis Behan-Pelletier, 1984Also Known As:ABMI code/Common name: CERAWATDiagnostic characters: >420; 11 pairs of minute notogastral setae; Aj present; lamellae striate,distance between cusps

Almanac of Alberta Oribatida 2.3 13 January 2013Dentizetes Hammer, 1952 (ITIS 734349)(Back to Ceratozetidae)Diagnostic characters: ceratozetids with pedotectum concave dorsally, lenticulus, 10 pairsnotogastral setaeAlso Known As: none.Type species: Dentizetes rudentiger Hammer, 1952World species: 2Comments:Canadian species listed on DOC (bold = AB): Dentizetes ledensis Behan-Pelletier, 2000; D.rudentiger Hammer, 1952Dentizetes ledensis Behan-Pelletier, 2000 (ITIS 741971)Also Known As:ABMI code/Common name: DENTLED; Common Name: Labrador Tea WingtoothDiagnostic characters: lamellae narrow, converging with rounded tips or small dens; lengthfemales 437-502, males 400-446Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (2000).Similar taxa:ABMI Site Records: 2007: 248, 358, 360, 388, 390, 601, 791, 823. 2008: 444, 719, 974, BOG4,FM06, SL21. 2009: 498, 499, 529, 530, 537, 560, 569, 579, 833. 2010: 323, 325, 383, 384,1207. 2011: 392, 968, 969, 1003, 1071, 1138, A761-4.DOC (1/2008): [+other] Distribution: AB [Cynthia], NS [WI]Images: SEM (Cynthia)Ecology: This mite is usually found on the underside of the leaves and on buds and stems ofLabrador Tea (Rhododendron (Ledum) groenlandicum). Gravid females carry up to 5 largeeggs.Literature: Behan-Pelletier (2000).Dentizetes rudentiger Hammer, 1952 (ITIS 741972)Also Known As:ABMI code/Common name: DENTRUDDiagnostic characters: lamellae very broad, subparallel, with dentate distal margins; femalelength 478-518, male 429-478444

Almanac of Alberta Oribatida 2.3 13 January 2013Overview:Barcodes:ID Check: Determination by DEW based on Hammer (1952); Behan-Pelletier (1986).Similar taxa:ABMI Site Records: 2007: 1069, 1102, 1133, 1134, 1602. 2008: 933, 1402, 1403, 1635. 2009:1491, 1510, 1529. 2010: 1035, 1169, 1201, OG-1069-1, OG-1136-1, OG-1203-1. 2011:964, 996, 1029, 1030, 1031, 1072, 1136, 1231, 1232, 1233, 1260, 1262.DOC (1/2008): [+other] Distribution: AB, NSImages:Ecology: dry alpine habitats; cankers of comandra blister rust on lodgepole pineLiterature: Hammer (1952); Behan-Pelletier (1986); Marshall et al. (1987).Diapterobates Grandjean, 1936 (ITIS 734377)(Back to Ceratozetidae)Diagnostic characters: poronotic, Aa often elongate; translamella usually present; 13 pairsnotogastral setae; pteromorphs +/- hingedAlso Known As: Humerobates Sellnick, 1928Type species: Notaspis humeralis Hermann, 1804World species: ~22Comments:Canadian species listed on DOC (bold = AB): Diapterobates humeralis (Hermann, 1804); D.notatus (Thörell, 1871); D. siccatus Shaldybina, 1970; Diapterobates sp.; D. variabilisHammer, 1955B60. Key to Diapterobates in Canada(modified from Behan-Pelletier 1986)1. Body length greater than 0.5 mm; pleurophragma without heavily sclerotized, fimbriatedappearance; usually translamella short and broad, rarely obsolete (Fig. B60.1A) .................... 2- Body length less than 0.5 mm; pleurophragma heavily sclerotized, fimbriated; translamellalong and narrow to obsolete (Fig. B60.1B) ................. Diapterobates variabilis Hammer, 1955445

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B60.12. Notogaster and venter without reticulate pattern; notogastral setae relatively long and stronglybarbed, c2>0.1 mm; tibiae and tarsi without porose areas (Fig. B60.2A) ................................. 3- Notogaster and venter with distinct subsurface pattern of reticulations; notogastral setaemedium in length, c2

Almanac of Alberta Oribatida 2.3 13 January 20133. Porose area Aa long and narrow (L>3xW); trans-Canadian distribution (Fig. B60.3A) .................................................................................................... Diapterobates notatus (Thörell, 1871)- Porose area Aa oval; YT, NU, NT (Fig. B60.3B) ... Diapterobates sitnikovae Shaldybina, 1970Figure B60.3*Diapterobates humeralis (Hermann, 1804) (ITIS 742211)Also Known As: Notaspis humeralis Hermann, 1804; Sphaerozetes (Trichoribates) numerosusSellnick, 1924; Mercia numerosa Sellnick, 1928; Trichoribates numerosus Willmann,1931; Diapterobates numerosus Hammer, 1955ABMI code/Common name: DIAPHUMDiagnostic characters: length 750-900; notogaster with subsurface reticulations; 13 pairsmedium notogastral setae, c2 2x others,

Almanac of Alberta Oribatida 2.3 13 January 20131137, 1158, 1233, 1260, 1262, A602-1, A608-2, A608-3, A635-1, A637-1, A7, A757-2,A761-1, A761-3, OG-1122-1, OG-1248-1, OG-1275-1.DOC (1/2008): [+other] Distribution: YT, NU, NT, ON, NS, NF; [Holarctic]Images: SEM (MP)Ecology: Mesophilous and known from peatlands; often arboreal.Literature: Behan-Pelletier (1985, 1986); Marshall et al. (1987); Behan-Pelletier & Bissett(1994).Diapterobates notatus (Thörell, 1871)Also Known As: Oribata notata Thörell, 1871ABMI code/Common name: DIAPNOTDiagnostic characters: length 577-648; notogaster without subsurface reticulations; c2>100;tarsi without porose areas; Aa very long and narrow (same in some D. humeralis)Overview:Barcodes:ID Check:Similar taxa: Diapterobates variabilis Hammer; D. siccatus Behan-Pelletier, 1986ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, MB, NS, NF [AK, Holarctic]Images:Ecology: Circumpolar; prefers mesic to wet habitats. Coulson (2009) found five specimens ofthis species attached to the thorax of a calliphorid fly (Cynomya mortuorum) on theSvalbard archipelago.Literature: Behan-Pelletier (1985, 1986); Marshall et al. (1987); Coulson (2009).*Diapterobates variabilis Hammer, 1955Also Known As:ABMI code/Common name: DIAPVARDiagnostic characters: Female ventral length 434-473, male 402-421. Aa (26-28 long x 8-12wide), c2 (63), da (~40)), lm (~25), la (39), in (~120), le (~80); lamellae broad,longitudianlly striate, with lateral tooth; translamella narrow to absent; custodiumlongitudinally striate, extending well past insertions of ro; dorsophragmata stronglysclerotised, roughened to fimbriate posteriorly. Distal segments of legs I without poroseareas.Overview:Barcodes:448

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Behan-Pelletier (1985, 1986).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none. 2012: 578SE(NNE Grand Prairie).DOC (1/2008): [+other] Distribution: YT, NU, NT, [AK, Holarctic].Images:Ecology: Moss, lichens, litter in dry microhabitats.Literature: Behan-Pelletier (1986); Marshall et al. (1987).*Diapterobates cf. sitnikovae Shaldybina, 1970Also Known As: Diapterobates siccatus Behan-Pelletier, 1986; Diapterobates cf.rotundocuspidatus Shaldybina, 1970ABMI code/Common name: DIAPSICDiagnostic characters: Ventral length 551-648. Prodorsum with rounded margin; dorsal marginof pedotectum I convex; lamellar cusp usually rounded or with short lateral dens, passinginsertion of rostral seta; tutorium lamelliform, striate, with toothed or undulating margin;sensillus 53-76 long with heavily barbed club tapered distally. Notogaster withoutsubsurface reticulations; 13 pairs of long, barbed notogastral setae, c2>100; Aa oval tocircular; tarsi without porose areas.AB specimens are smaller (male 540, female 560-80 ventral length), with strong lateraldens on lamellar cusps, a longer sensillus (107 in female) with a more elongate club, and aweakly toothed anterior margin of the rostrum. Female c2, da, lm, la (all 100-105), le (105),in (161), Aa oval (23 long x 14 across).Smaller, but otherwise more similar to D. sitnikovae sensu Shaldybina than Behan-Pelletier1986 (=siccatus).Overview:Barcodes:ID Check: Behan-Pelletier (1985, 1986).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: 149. 2011: none. 2012: none.DOC (1/2008): [+other] Distribution: YT, NU, NT, [AK, Holarctic].Images:Ecology: Moss, lichens, litter in dry microhabitats.Literature: Behan-Pelletier (1986); Marshall et al. (1987).449

Almanac of Alberta Oribatida 2.3 13 January 2013Fuscozetes Sellnick, 1928 (ITIS 734353)(Back to Ceratozetidae)Diagnostic characters: bothridium cup-shaped, translamella present, lamellae stronglyconvergent, cusps pass ro; dorso-median series of notogastral setae (da, dm, dp) present orabsent.Also Known As:Type species: Oribates fuscipes C.L. Koch, 1844World species: ~13Comments: Species of Melanozetes Hull, 1916 are very similar, but have shorter, subparallellamellar cusps and often lack the translamella. Melanozetes meridianus Sellnick, 1928 is acircumpolar species known from YT NU NT MB, and QC in Canada. Melanozetes tananaBehan-Pelletier, 1986 was described from the Yukon.Canadian species listed on DOC (bold = AB): Fuscozetes bidentatus (Banks, 1895); F. fuscipes(C.L. Koch, 1844); F. sellnicki Hammer, 1952; F. setosus (C.L. Koch, 1839); Fuscozetessp.B61. Key to Fuscozetes and Melanozetes in and near Alberta1. Translamella present; lamellar cusps long, approaching tip of rostrum; dorso-median series ofnotogastral setae (da, dm, dp) present or absent; genal tooth present (Fig. B61.1A) ............................................................................................................................................... (Fuscozetes) 2- Translamella absent; lamellar cusps short, ending far from tip of rostrum; dorso-median seriesof notogastral setae (da, dm, dp) present; genal tooth absent (Fig. B61.1B) .... (Melanozetes) 3450Figure B61.1

Almanac of Alberta Oribatida 2.3 13 January 20132. Body length >600 (males to 580); notogastral setae inserted in areas of darkened cuticle; femurII with ventro-distal spur (Fig. B61.2A) ...................... Fuscozetes fuscipes (C.L. Koch, 1844)- Body length

Almanac of Alberta Oribatida 2.3 13 January 2013Fuscozetes fuscipes (CL Koch, 1844) (ITIS 741994)Also Known As:ABMI code/Common name: FUSCFUSDiagnostic characters: notogastral porose areas large, sessile; seta in extending beyondtranslamella; 10 pairs of notogastral setae, each inserted in darker spot in cuticle; femur IIpointed distally; female ventral length >600 (males may be around 580-600)Overview:Barcodes: 1379 (658 x 3), 1380 (0 x 3)ID Check: Determination by DEW based on Behan-Pelletier (1985, 1986); Weigmann (2006).Similar taxa: species of Melanozetes Hull, 1916ABMI Site Records: 2007: 616, 632, 1118, 1149, UPL4. 2008: 1009, 1085, 1116, 1354, 1355,1379, 1380, BOG1, SL10. 2009: 498, 528, 949, 882. 2010: 1175, 1177, 1209, OG-1208-1,OG-1210-1, OG-1326-2, OG-1354-1. 2011: 958, 983, 1017, 1018, 1024, OG-1082-1, OG-1275, OG-1331-1.DOC (1/2008): [+other] Distribution: AB, MB, ON, NS [Moose Pasture Research Site 8 km WChipman, AB (53.656667, -112.759444), Edmonton (Jackie Parker Park), Meanook;Holarctic]Images: SEM (Meanook)Ecology: A mesophilous mite, reported from peatlands (Behan-Pelletier-Bissett, 1994) andcharacteristic of sites with pasture or field crops. Gravid females carry up to 4 large eggs.Subfossil specimens (6150 BP) have been reported from peat in NE Russia (Krivolutsky &Sidorchuk 2003).Literature: Marshall et al. (1987); Behan-Pelletier (1986); Weigmann (2006).Iugoribates Sellnick, 1944(Back to Ceratozetidae)Diagnostic characters: bothridium without scales, integumental folds present between acetabulaI-II, 10 pairs notogastral setae; pteromorph without partial hinge, lenticulus present,lamellae narrow, without cusp, translamella absent.Also Known As:Type species: Iugoribates gracilis Sellnick, 1944World species: 2Comments: Iugoribates cornutus Mínguez, 1981, is supposed to be HolarcticCanadian species listed on DOC (bold = AB): Iugoribates gracilis Sellnick, 1944.452

Almanac of Alberta Oribatida 2.3 13 January 2013* Iugoribates gracilis Sellnick, 1944Also Known As:ABMI code/Common name: IUGOGRADiagnostic characters: rostrum entire, lamellae narrow, without cusp, translamella absent,tutorium broad, without knife-like cusp, sensillus clubbed, 10 pairs notogastral setae;pteromorph without partial hinge, lenticulus present.Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1985).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 1232.DOC (1/2008): [+other] Distribution: YT, NU, NT; [AK]Images:Ecology:Literature: Behan-Pelletier (1985).Latilamellobates Shaldybina, 1971(Back to Ceratozetidae)Diagnostic characters: sensillus clubbed, 10 pairs notogastral setae; pteromorph without hinge,lenticulus present, lamellae broad, translamella present.Also Known As: Trichoribatella Mahunka, 1983; Murcia KochType species: Latilamellobates incisellus (Kramer, 1897)World species: 9Comments:Canadian species listed on DOC (bold = AB): Latilamellobates baloghi (Mahunka, 1983).*Latilamellobates baloghi (Mahunka, 1983)Also Known As:ABMI code/Common name: LATIBALDiagnostic characters: very broad lamellae with dens, H-shaped with translamella, notogastralintegument pebbly; 4 pairs genital setae.Overview: Possibly a synonym of T. incisella (Kramer, 1897).Barcodes:453

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Behan-Pelletier (2000). Edmonton specimenchecked by VBP October 2008.Similar taxa: Latilamellobates baloghi (Mahunka, 1983) is reported from BC (Behan-Pelletier2000);ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [Jackie Parker Park, Edmonton 12 June 2008]Images:Ecology:Literature: Behan-Pelletier (2000).Neogymnobates Ewing, 1917 (ITIS 734361)(Back to Ceratozetidae)Diagnostic characters: bothridium cup-shaped, 13 pairs notogastral setae; pteromorph withouthinge; lenticulus present or absentAlso Known As: Boreozetes Hammer, 1955; Koreozetes Aoki, 1974, Neogymnobates(Neogymnobates) Ewing, 1917 (ITIS 734838)Type species: Oribata multipilosa Ewing, 1907World species: 6Comments:Canadian species listed on DOC (bold = AB): Neogymnobates luteus (Hammer, 1955); N.marilynae Behan-Pelletier, 2000B62. Key to Neogymnobates in Canada1. Lenticulus present; sensillus finely barbed, with elongate or truncate club; notogastral setaerelatively long (30- (Fig. B62.1A) ........................................................... 2- Lenticulus absent; sensillus with densely barbed, elongate head; notogastral setae relativelyshort (11- (Fig. B62.1B) ................................. Neogymnobates luteus (Hammer, 1955)454

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B62.12. Sensillus with a short, truncate club (Fig. B62.2A)..................................................................... 3- Sensillus with elongate, sparsely barbed club (Fig. B62.2B).................................................................................................................................................. Neogymnobates multipilosus (Ewing)Figure B62.2455

Almanac of Alberta Oribatida 2.3 13 January 20133. Notogastral setae extremely long, flagellate; porose area Aa elongate ..................................................................................................................................... N. marilynae Behan-Pelletier, 2000- Notogastral setae relatively short (30-; notogaster stronglyrugose............................................................................................. Neogymnobates sp. 1 DEW*Neogymnobates luteus (Hammer, 1955) (ITIS 742088)Also Known As: Boreozetes luteus Hammer, 1955ABMI code/Common name: NEOGLUTDiagnostic characters: Body length females: 363-390; males 324-365. Notogaster microrugose;pteromorphs immovable; lenticulus absent; 13 pairs of setae (da, dm, dp present); short,blind trachea between c2 and la; porose areas surrounded by clear ring, Aa subcircular.Prodorsum: translamella present, lamella weakly lineate, cusp with or without lateral dens;rostrum entire or with shallow folds or teeth; tutorium lamelliform with 1-4 distal teeth,striate dorsally; genal tooth broadly triangular; bo with large, elongate head; in (~70)barbed, similar in length and ornamentation to le. Femora I-IV with keel and parallel ridges.Overview: This is a small, yellowish brown mite near the size of the sieve grids used in ABMIcollections and is probably more common than collections indicate. No lenticulus ispresent, the pteromorphs are fixed, and the sensillus is a long, barbed club. The mite wasoriginally described from Alaska, but is now known from across boreal Canada. This is thefirst report of the species in Alberta.Barcodes:ID Check: Determination by DEW based on Hammer (1955); Behan-Pelletier (1985, 1986,2000). 276 SW checked by VBP April 2008.Similar taxa: Cyrtozetes lindoae Behan-Pelletier & Eamer, 2008 has sensillus with a large head;Neogymnobates multipilosus -22) and alenticulus.ABMI Site Records: 2007: 276, 576, 665 (also Chamobates cuspidatus on slide), 1101, 1133,1134. 2008: 413, 414, 720, 752, 1041, SL18. 2009: 1491. 2010: 1202, 1203, 1207, 323,876, OG-1069-1. 2011: 91, 970, 997, 1071, 1073, 1136, 1137, 1138, 1262.DOC (1/2008): [+other] Distribution: YT, NU, NT, QC, NB, NF; [AK]Images: SEM (1133)Ecology: Bisexual, gravid females carry up to 5 eggs. Gut contents include brown hyphae andfine to coarse organic matter.Literature: Hammer (1955); Marshall et al. (1987); Behan-Pelletier (1985, 1986, 2000).***Neogymnobates sp. 1 DEW (RAM 99000012)Also Known As:ABMI code/Common name: NEOGNS1456

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: length female 560; male 470-500; short barbed notogastral setaeincluding da, dm, dp (~35), c2 the longest (~50); small oval Aa, A1 and tiny A2, A3;lenticulus and a subsurface pattern of 'reticulations'; the translamella, lamellae, broaddistally toothed tutorium, and pedotecta I-II all have striations.Overview: This medium-size, yellow to red brown mite has a lenticulus, fixed pteromorphs, anda truncate, club on the sensillus. The species appears to be new to science.Barcodes:ID Check: 358 SW identified as a new species by VBP April 2008.Similar taxa: D. pusillus Aoki, 1969; D. variabilis Hammer; Neogymnobates multipilosa(Ewing, 1907)ABMI Site Records: 2007: 358, 389. 2008: BOG3. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] DistributionImages:Ecology: Bisexual.Literature: Behan-Pelletier (1985, 1986); Marshall et al. (1987).Sphaerozetes Berlese, 1885 (ITIS 734366)(Back to Ceratozetidae)Diagnostic characters: Bothridium with lateral (svl) and medial (sdm) scales; lenticulus absent;pteromorphs not hinged; anterodorsal hypophysis on tibia I present, bearing solenidion;rostral seta (ro) inserted far anteriad on prodorsum, lamellar cusps not reaching itsinsertion; translamella well developed ribbon-like or linear; rostrum with lateral dens, withor without median dens; tutorium with or without tapering cusp; discidium with long,pointed custodium; genal tooth long, pointed; notogaster with 10-11 pairs of setae, seta c3present or absent, and 4 pairs of porose areas; 6 pairs genital setae.Also Known As: Sphaerozetella Jacot, 1929; Sphaerozetes (Sphaerozetes) Berlese, 1885 (ITIS734844)Type species: Oribata orbicularis Koch, 1835World species: 19Comments:Canadian species listed on DOC (bold = AB): Sphaerozetes arcticus Hammer, 1952; S. castaneusHammer, 1955; S. firthensis Behan-Pelletier, 1986; S. winchesteri Behan-Pelletier, 2000457

Almanac of Alberta Oribatida 2.3 13 January 2013B63. Key to adults of Canadian Sphaerozetes1. Translamella linear, lamellae almost parallel; tutorium without cusp; seta c3 absent (only onesetae on pteromorph anterior to Aa); rostrum with 2 short lateral teeth & well developedgenal tooth just reaching insertion of ro; female length 535-583, male 462-520; BC, OR (Fig.B63.1A) .......................................................... Sphaerozetes winchesteri Behan-Pelletier, 2000- Translamella ribbon-like, lamellae converging; tutorium with well developed cusp; othercharacters variable (Fig. B63.1B) .............................................................................................. 2Figure B63.12. Seta c3 absent (only one setae on pteromorph anterior to Aa); genal tooth extending wellanteriad insertion of ro (Fig. B63.2A) ....................................................................................... 3- Seta c3 present (2 setae on pteromorph anterior to Aa); genal tooth just reaching insertion of ro(Fig. B63.2B) ............................................................................................................................. 4458

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B63.23. Interlamellar setae short, not passing translamella; lamellar cusps very short; tutorium justreaching base of ro AK, AB, NWT, YT, VA, Palearctic ................................................................................................................................................... Sphaerozetes arcticus Hammer, 1952- Interlamellar seta very long (120), extending well beyond lamellar cusp; lamellar cusps veryshort; tutorial cusp extending well past base of ro ............................. Sphaerozetes sp. 1 DEW4. Lamellar cusp shorter than translamella, with medial and lateral dens of equal length; rostrumwith median tooth; seta c3 minute, ~ other notogastral setae; larger mites: translamella >40,tutorium ~190 (not reaching ro); female 780; AK (Fig. B63.3A) ..................................................................................................................................... Sphaerozetes castaneus Hammer, 1955- Lamellar cusp about 1/3 rd lamella (~translamella) with only small lateral dens; rostrum withoutmedian tooth; seta c3 >twice length of other notogastral setae; smaller mites: translamella

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B63.3*Sphaerozetes arcticus Hammer, 1952 (ITIS 742103)Also Known As:ABMI code/Common name: SPHAARCDiagnostic characters: 10 pairs of notogastral setae; lamellar cusps very short; genal toothextending past ro.Overview:Barcodes: 345 (0 x 3)ID Check: Determination by DEW based on Behan-Pelletier (1985, 1986). 388 SE, SW checkedby VBP April 2008.Similar taxa: One specimen from 388 has left cusp 15 with strong lateral dens (right cusp 9 withvery weak dens)ABMI Site Records: 2007: 216, 248, 277, 358, 360, 388, 484, 545, 574, 599, 601, 617, 663, 665,UPL5. 2008: 345, 373, 688, 690, BOG2, BOG3, FM06, FM08, SL10. 2009: 498, 507, 560,568. 2010: ALPAC-8; ALPAC-16. 2011: 121, 451, 608, 963, 1136, A761-4.DOC (1/2008): [+other] Distribution: YT, NU, NT, NS, NF; [AK, Palearctic]Images: SEM (SL10)Ecology:460

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Hammer (1952); Behan-Pelletier (1985, 1986); Marshall et al. (1987).***Sphaerozetes sp. 1 DEW (RAM 99000098)Also Known As:ABMI code/Common name: SPHASP1Diagnostic characters: 470 long; interlamellar seta very long (120), extending well beyondlamellar cusp; notogaster microtuberculate, with 10 pairs of setae (20-30); Aa large (~30long).Overview: 1 in alcohol; 1 on slideBarcodes:ID Check: Determination based on Behan-Pelletier (1985, 1986) and by VBP 22 October 2008for 444 NE.Similar taxa:ABMI Site Records: 2007: none. 2008: 444. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution:Images:Ecology:Literature: Behan-Pelletier (1986); Marshall et al. (1987); Weigmann (2006).Svalbardia Thor, 1930(Back to Ceratozetidae)Diagnostic characters: bothridium without scales, integumental folds present between acetabulaI-II, 10 pairs notogastral setae; pteromorph without partial hinge, lenticulus present,lamellae narrow, with narrow cusp without dens, translamella absent.Also Known As:Type species: Svalbardia paludicola Thor, 1930World species: 1Comments:Canadian species listed on DOC (bold = AB): Svalbardia paludicola Thor, 1930.* Svalbardia paludicola Thor, 1930Also Known As: NA specimens have been misidentified as Oromurcia lucens (L. Koch, 1879)(see Marshall et al. 1987)ABMI code/Common name: SVALPAL461

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: rostrum entire, lamellae narrow, with short, narrow cusp, translamellaabsent, tutorium broad, with distal teeth, sensillus clubbed, 10 pairs notogastral setae,porose areas A1-2 closely inserted; pteromorph without hinge, lenticulus present.Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1985, 1986).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: 997.DOC (1/2008): [+other] Distribution: MB, YT, NU, NT; [AK, Holarctic]Images:Ecology:Literature: Behan-Pelletier (1985, 1986); Marshall et al. (1987).Trichoribates Berlese, 1910 (UBIO 94376240)(Back to Ceratozetidae)Diagnostic characters: bothridium cup-shaped, 10-11 pairs notogastral setae; lamellar cuspswell-developed, tapered; translamella present.Also Known As: Murcia Koch, 1835 (unrecognizable genus, see Weigmann & Norton 2009).Type species: Trichoribates berlesei Jacot, 1929 (not Murcia trimaculata Koch, 1835)World species: 47Comments: The generic name Murcia was revived by Subías (2004), but this use was rejected byWeigmann & Norton (2009).Canadian species listed on DOC (bold = AB): Trichoribates copperminensis Hammer, 1952; T.formosus (Banks, 1909); T. ogilviensis Behan-Pelletier, 1986; T. polaris Hammer, 1953;Trichoribates principalis (Berlese, 1914); Trichoribates sp.; Trichoribates striatusHammer, 1952B64. Key to Trichoribates Berlese, 1910 in western Canada1. Notogaster with porose areas; pteromorphs immovable; tutorium acuminate (Fig. B64.1A) .... 2- Notogaster with saccules; pteromorphs movable; tutorium with broad, dentate margin; venter531-616 (Fig. B64.1B)...................................................... Trichoribates polaris Hammer, 1953462

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B64.12. Notogaster without subsurface reticulate pattern; ventro-median scale of bothridium poorlydeveloped or absent; tarsi I-IV without proximo-ventral porose areas (Fig. B64.2A) .............. 4- Notogaster with faint to strong subsurface reticulations; bothridium with pointed ventro-medianscale; tarsi I-IV with proximo-ventral porose areas (Fig. B64.2B) ........................................... 3463Figure B64.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Seta dp absent (10 pairs of notogastral setae, 25-40 long); seta lp mediad A2; lamellae verybroad, narrowly separated and with well developed medial and lateral dens; female ventrallength 450 .......................................................................................... Trichoribates sp. 4 DEW- Seta dp present (11 pairs notogastral setae, 50-70 long); seta lp anteriad A2; lamellae widelyseparated, lateral dens larger than medial dens; ventral length 500-661 ............................................................................................................................ Trichoribates striatus Hammer, 19524. Notogastral seta lp inserted anterior to porose area A1 and in transverse alignment with gla(A1, lp, gla outline triangular area); lateral dens of lamella present or absent; smaller mites

Almanac of Alberta Oribatida 2.3 13 January 2013Trichoribates copperminensis, Hammer 1952Also Known As:ABMI code/Common name: TRICPRIDiagnostic characters:Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: ABMI Wetlands 344. 2011:604.DOC (1/2008): [+other] Distribution: AB; YT, NU, NTImages:Ecology:Literature: Powell (1971); Behan-Pelletier (1985, 1986); Marshall et al. (1987).[Trichoribates principalis (Berlese, 1914)]Also Known As:ABMI code/Common name: TRICPRIDiagnostic characters:Overview: This record is probably a misidentification from Powell (1971), as otherwise thespecies is only known from Italy (pers. comm. Valerie Behan-Pelletier 16 Jan 2008).Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB; [Palearctic]Images:Ecology:Literature: Powell (1971); Behan-Pelletier (1985, 1986); Marshall et al. (1987).*Trichoribates striatus Hammer, 1952 (ITIS 99000063)Also Known As:ABMI code/Common name: TRICSTR465

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: length 500-560 (622-661); notogaster greyish to reddish brown,microtuberculate and with faint subsurface reticulations; 11 pairs of erect notogastral setae(dp present); striations on pedotectum I, tutorium, lamellae; tarsi I-IV with ventro-proximalporose areas.Overview: smaller than type series. Trichoribates formosus (Banks, 1909) is known from ON; T.copperminensis Hammer, 1952 from YT, NU, NT; T. ogilviensis Behan-Pelletier, 1986from YT; and the sacculonotic T. polaris Hammer, 1953 from YT, NU, NT.Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1985, 1986). 1252 NE checked byVBP April 2008.Similar taxa: T. novus (Sellnick, 1928) from Europe; Trichoribates sp. 4 DEW is smaller, lacksdp, and has very broad, narrowly separated lamellae.ABMI Site Records: 2007: 855, 856, 1252, 1253. 2008: 315, 1190, BOG2, SL03. 2009: 881,1305. 2010: 890. 2011: 985, 990, 1016, 1093, 1158, 1184, 1185, 1217, 1275, OG-1082-1,OG-1122-1, OG-1160-1, OG-1334-1.DOC (1/2008): [+other] Distribution: [Moose Pasture Research Site 8 km W Chipman, AB] [AK]Images: SEM (MP)Ecology: This species is characteristic of open habitats with grasses and forbs. Bisexual; gravidfemales can carry at least 5 eggs. Gut contents include fungal hyphae and spores and someindeterminate granular material.Literature: Hammer (1952); Behan-Pelletier (1985, 1986); Marshall et al. (1987).**Trichoribates sp. 2 DEW (RAM 99000053)Also Known As:ABMI code/Common name: TRICSP2Diagnostic characters: ventral length 400-480. Integument with short longitudinal ridges ininterlamellar area, microtuberculate and with ridges on pedotectum I; microtuberculate onnotogaster, femora, trochanters, venter. Prodorsum with striate lamella, tutorium andpedotectum I; genal tooth reaching well past insertion of ro; lamellae with strong lateraldens and U-shaped interlamellar distance < ½ in-in; sensillus (~50) with strong, barbed clubfor about half length; in (120-130) barbed, acuminate, extending well past tip of lamellarcusp; le (95-98) barbed, acuminate, extending past tip of rostrum; ro somewhat shorter, butwith longer barbs. Notogaster microtuberculate, with fixed pteromorphs; lenticulus; 10pairs of fine notogastral setae, lp anterior to A1 at about level of the gland; and 4 pairs ofporose areas, Aa oval (18-20 long), A1-3 smaller (10-13); postanal porose band ~85. Tarsiwithout ventral porose areas; genu III with short disto-ventral keel.Overview: This mid-sized species of Trichoribates is currently known from only one site innorthern Alberta. It is very similar to, and may represent a variant of, Trichoribatescopperminensis, Hammer 1952 know from AK, YT, NU, NT, and the Russian Far East.Barcodes:466

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by DEW based on Behan-Pelletier (1985, 1986). 545 SW checked byVBP April 2008.Similar taxa: Very similar to Trichoribates copperminensis, Hammer 1952 described fromAlaska and reported from YT, NU, NT, but with a large and distinct lateral tooth on thelamella.ABMI Site Records: 2007: 575. 2008: none. 2009: none. 2010: none. 2011: 391.DOC (1/2008): [+other] Distribution: Trichoribates sp. reported from AB, YT, BC, SK, ON, NS,PE, NFImages:Ecology: Bisexual. Gut contents of single female specimen has brown fungal hyphae.Literature: Behan-Pelletier (1985, 1986); Marshall et al. (1987); Bayartogtokh & Schatz (2008a,b).**Trichoribates sp. 3 DEWAlso Known As:ABMI code/Common name: TRICSP3Diagnostic characters: male ventral length 420. Integument microtuberculate in interlamellararea, with short ridges on lateral prodorsum; notogaster micropunctate and with rugosepattern of short ridges; trochanters and femur III microtuberculate; venter micropunctate.Prodorsum with striate lamella and tutorium; genal tooth reaching well past insertion of ro;lamellae with rounded cusps, without teeth and U-shaped interlamellar distance verynarrow, barely 1/3 rd in-in; sensillus (~55) with flattened, barbed club for

Almanac of Alberta Oribatida 2.3 13 January 2013Ecology: Bisexual. Gut contents of single male specimen has brown fungal hyphae.Literature: Behan-Pelletier (1985, 1986); Marshall et al. (1987); Bayartogtokh & Schatz (2008a,b).**Trichoribates sp. 4 DEWAlso Known As:ABMI code/Common name: TRICSP4Diagnostic characters: female ventral length 450. Notogaster with strong subsurfacereticulations; bothridium with pointed ventro-median scale; tarsi I-IV with proximo-ventral;seta dp absent (10 pairs of notogastral setae, 25-40 long); seta lp mediad A2; lamellae verybroad, narrowly separated and with well developed medial and lateral dens.Overview: Known only from compost in an urban yard in Edmonton.Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1985, 1986).Similar taxa: Resembles a small version of Trichoribates striatus, Hammer 1952, but notogastralseta dp is absent and the lamellae are very broad, only narrowly separated, and both medialand lateral dens are well developed.ABMI Site Records: 2007: none. 2008: none. 2009: 575. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [Edmonton]; Trichoribates sp. reported from AB, YT, BC,SK, ON, NS, PE, NFImages:Ecology:Literature: Behan-Pelletier (1985, 1986); Marshall et al. (1987); Bayartogtokh & Schatz (2008a,b).Back to Table of ContentsChamobatidae Thor, 1937 (ITIS 733526)Back to CeratozetoideaChamobates Hull, 1916 (ITIS 734851)Diagnostic characters: poronotic, immovable pteromorphs, notogastral setae reduced to alveoli,lamellae narrow with short cusp, lamellar seta (le) inserted under tip of cusp, heterotridactylAlso Known As: subgenus Xiphobates; Chamobates (Chamobates) Hull, 1916 (ITIS 734370)Type species: Oribata cuspidata Michael, 1884World species: 35Comments: Marshall et al. (187) list Chamobates cuspidatus (Michael, 1884), C. pusillus(Berlese, 1895), C. schuetzi (Oudemans, 1902) from North America [the latter two both468

Almanac of Alberta Oribatida 2.3 13 January 2013have a short, clubbed sensillus and a pair of lateral rostral teeth, the former also has inshort]. Schneider (2005) placed Chamobatidae in the secondary decomposer feeding guild(i.e. feeding primarily on fungi and secondarily on decomposing plant matter).Canadian species listed on DOC (bold = AB): Chamobates cuspidatus (Michael, 1884);Chamobates sp.B65. Key to Canadian Chamobates1. Ventral length 300-350, light brown in colour, lenticulus absent, rostrum mucronate.................................................................................................... Chamobates sp. 2 DEW- Ventral length 360-500, yellow to red brown in colour, lenticulus present; rostrum roundedwith a pair of lateral teeth (Fig. B65.1) ........... Chamobates cuspidatus (Michael, 1884)Figure B65.1*Chamobates cf cuspidatus (Michael, 1884) (ITIS 742151)Also Known As: ABMI code/Common name: CHAMCUSDiagnostic characters: small (360-500), spherical with weakly defined lenticulus; immovablepteromorphs; lamellar seta > interlamellar, inserted under short, sharp lamellar cusp; inlonger than lamellae; notogastral setae reduced to alveoli; porose areas small, oval; tutoriumlineate, cusp sharp, passes ro; rostrum rounded (or with 1-2 minute bumps), with 2 lateralteeth; bo long, narrow club, head longer than stalk, directed anteriorly.Overview: Specimens key to this species in Gilyarov & Krivolutsky (1975), but I have yet tofind a recent revision of the genus.469

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975).Similar taxa: see Chamobates sp. 1 DEW below.ABMI Site Records: 2007: 248, 358, 359, 514, 543, 600, 617, 632, 632, 664, 665 (on slide withNeogymnobates luteus), 791, 793, 823, 825, 857, BOG6, UPL7. 2008: 343, 344, 719, 866,867, 899, 976, 1116, FM04, SL11, UPL1, UPL2. 2009: 15, 499. 2010: 149, 208, 890, 892,ALPAC-1, ALPAC-5, ALPAC-9, ALPAC-14. 2011: 64, 91, 121, 481, 482, 984, 1017,A692-2, OG-ABMI-1275-1.DOC (1/2008): [+other] Distribution: QC, NF; [Moose Pasture Research Site 8 km W Chipman,AB (53.656667, -112.759444); Holarctic]Images: SEM (MP, 359R)Ecology: Bisexual. Gravid females can carry up to 5 large eggs. Gut boli contain fungal sporesand hyphae and granular material. Chamobates cuspidatus was the only species of 10 testedto show an increasing trend in the proportion of leg abnormalities along a heavy metalpollution gradient (Eeva & Penttinen 2009).Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann (2006).*Chamobates sp. 2 DEWAlso Known As:ABMI code/Common name: CHAMSP1Diagnostic characters: ventral length 300-350, light brown in colour, lenticulus absent, rostrummucronate, lateral teeth absent; lamellar tooth strongly developed; medial scale ofbothridium with 1-3 teeth; sensillus an elongate fusiform club on a short stalk; genu I-IIwith strong disto-ventral cusp; genu IV with rounded ventral teeth; tutorium lineatedorsally, with single distal tooth; ventral margin of pteromorph rounded; g1-2 aligned onanterior margin of genital shield; heterotridactyl.Overview: A very small mite that likely passes through the 0.3 mm grid.Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975).Similar taxa: Chamobates birulai (Kulzynski, 1902) has a mucronate rostrum, but is larger (390)and has blunt distal lamellae;ABMI Site Records: 2007: none. 2008: none. 2009: 1. 2010: ALPAC-16. 2011: none.DOC (1/2008): [+other] Distribution: Chamobates sp. reported from BC QC NB NS; [MoosePasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)]Images: SEM (Ecology: Bisexual. The 3 slide-mounted specimens on hand have small gut boli composed offungal material. Collected from a wet meadow in aspen forest.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann (2006).470

Almanac of Alberta Oribatida 2.3 13 January 2013Back to Table of ContentsMycobatidae Grandjean, 1954 (RAM xxxxxxxx)Back to CeratozetoideaB66. Key to Genera of Mycobatidae in Alberta1. Bothridium cup-like, without scales; area between interlamellar seta (in) and bothridium with atubercle; usually found in wet habitats (Fig. B66.1A) .............................................................. 2- Bothridium with dorsal and ventral scales; area between interlamellar seta (in) and bothridiumwithout a tubercle; usually found in dry habitats, lichens, grasslands (Fig. B66.1B) ............... 3Figure B66.12. Interlamellar seta flattened, densely barbed, and bifurcate distally; anterior notogastral tectumtruncate; notogaster with saccules ....................................... Pelopsis bifurcatus (Ewing, 1909)- Interlamellar seta setiform, acuminate; anterior notogastral tectum with U-shaped indentationand 2 points; notogaster with porose areas, Aa large ... Punctoribates palustris (Banks, 1895)471Figure B66.2

Almanac of Alberta Oribatida 2.3 13 January 20133. Pteromorph hinged (Fig. B66.3A) ............................................................. Mycobates Hull, 1916- Pteromorph not hinged (Fig. B66.3B) .......................................................................................... 4Figure B66.34. Lamellae very broad, converging, and joined at base of cusps; notogaster with 3 pairs ofporose areas (A1 absent); dorsum and venter foveolate; monodactyl; posterior notogastraltectum divided ..............................Guatemalozetes danos Behan-Pelletier & Ryabinin, 1991- Lamellae separate and with translamella (AB spp.); notogaster smooth, with 4 pairs of poroseareas; tridactyl; posterior notogastral tectum entire ..............Cyrtozetes Behan-Pelletier, 1985472Figure B66.4

Almanac of Alberta Oribatida 2.3 13 January 2013Cyrtozetes Behan-Pelletier, 1985 (RAM xxxxxxxx)Diagnostic characters: bothridium with dorsal and ventral scales; no thickened bands in anteriortectum of notogaster; no tubercle between base of seta in and bothridium; pteromorphswithout hinge; posterior notogastral tectum undivided;Also Known As: Ceratozetella Shaldybina, 1966Type species: Ceratozetes shiranensis Aoki, 1976World species: 4Comments:Canadian species listed on DOC (bold = AB): Cyrtozetes denaliensis Behan-Pelletier, 1985;[Cyrtozetes lindoae Behan-Pelletier & Eamer, 2008]Cyrtozetes lindoae Behan-Pelletier & Eamer, 2008Also Known As:ABMI code/Common name: CYRTLINDiagnostic characters: length 290-320; rostrum with 5 distal teeth; bo with large headOverview: Cyrtozetes denaliensis Behan-Pelletier, 1985 is known from AK, YT, and Russian FarEastBarcodes:ID Check:Similar taxa: NeogymnobatesABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: [AB, BC Behan-Pelletier & Eamer (2008)]Images:Ecology: This mite is known from Waterton Lakes (1950m) in moss, lichens, soilLiterature: Marshall et al. (1987); Behan-Pelletier & Eamer (2008).***Cyrtozetes sp. 1 DEW (RAM 99000079)Also Known As:ABMI code/Common name: CYRTSP1Diagnostic characters: ventral length 318-324; 10 pairs notogastral setae; anterior edge ofnotogastral strongly convex; translamella present; lamellae subparallel, without lateral dens,about as far apart as in-in; in passing translamella, almost reaching tip of lamellar cusps; boshort, clubbed; tridactyl.Overview: Misidentified as Ceratozetes inupiaq in 2007; this is a new species according to VBPand belongs in Cyrtozetes along with C. inupiaq Behan-Pelletier & Eamer 2008.473

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: 1133 SE identified as new species by VBP April 2008.Similar taxa: Cyrtozetes inupiaq (Behan-Pelletier, 1986) described from Ogilvie Mountains, YTABMI Site Records: 2007: 1133. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution:Images: SEM (1133R)Ecology:Literature: Behan-Pelletier (1986); Marshall et al. (1987); Behan-Pelletier & Eamer (2008).Guatemalozetes Mahunka, 1979Diagnostic characters: bothridium with dorsal and ventral scales; no thickened bands in anteriortectum of notogaster; no tubercle between base of seta in and bothridium; pteromorphswithout hinge; posterior notogastral tectum divided medially, with overlapping lobes;monodactyl.Also Known As: Scotiazetes Wallwork, 1966Type species: Guatemalozetes aelleni Mahunka, 1979World species: 3Comments:Canadian species listed on DOC (bold = AB): Guatemalozetes danos Behan-Pelletier &Ryabinin, 1991Guatemalozetes danos Behan-Pelletier & Ryabinin, 1991Also Known As:ABMI code/Common name: GUATDANDiagnostic characters: Lamellae very broad, cusps short, separated by V-shaped notch and veryshort translamella; bothridium with well developed dorsal and ventral scales; tutoriumsmall, with long, needle-like cusp; sensillus +/- pectinate on anterior margin, a few tines ondistal posterior margin; posterior notogastral tectum split and overlapping; 320-337 long.Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: 1601NE residuals. 2008: none. 2009: none. 2010: none. 2011. none.DOC (1/2008): [+other] Distribution: AB [CO, KS]; Writing-on-Stone Provincial Park; DinosaurProvincial Park474

Almanac of Alberta Oribatida 2.3 13 January 2013Images: SEM (1601)Ecology: A mite of dry open habitats: grasslands, prairie, and woodlands. Adult females carryone large egg. The gut contents of the one slided female on hand has sheet-like material(probably arthropod cuticle) and some hyaline fungi.Literature: Marshall et al. (1987); Behan-Pelletier & Ryabinin (1991); Behan-Pelletier & Eamer(2008).Guatemalozetes danos Behan-Pelletier & Ryabinin, 1991Mycobates Hull, 1916 (ITIS 734388)(Back to Mycobatidae)Diagnostic characters: bothridium with dorsal and ventral scales; no pair of thickened bands inanterior tectum of notogaster; no tubercle between base of seta in and bothridium;pteromorph with complete hinge.Also Known As: Sphaerozetes (misidentifications by Hammer), Calyptozetes Thor, 1930,Mycobates (Mycobates) (ITIS 734855)Type species: Oribata parmeliae Michael, 1884World species: 38Comments:Canadian species listed on DOC (bold = AB): Mycobates acuspidatus Behan-Pelletier, 2001; M.altus Behan-Pelletier, 1994; M. azaleos Behan-Pelletier, 1994; M. beringianus Behan-Pelletier, 1994; M. brevilamellatus Behan-Pelletier, 1994; M. conitus Hammer, 1952; M.corticeus Behan-Pelletier, 2001; M. dryas Behan-Pelletier, 1994; M. exigualis Behan-Pelletier, 1994; M. hammerae Behan-Pelletier, 1994; M. hyaleus Behan-Pelletier, 1994; M.incurvatus Hammer, 1952; M. occidentalis Behan-Pelletier, 1994; M. parmeliae (Michael,475

Almanac of Alberta Oribatida 2.3 13 January 20131884); M. perates Behan-Pelletier, 1994; M. punctatus Hammer, 1955; M. sarekensis(Trägårdh, 1910); M. yukonensis Behan-Pelletier, 1994B67. Key to Mycobates in Alberta(modified from Behan-Pelletier (1994))1. Tridactyl; other characters variable (Fig. B67.1A)...................................................................... 2- Monodactyl; all porose areas evident; lamellar cusps parallel, median lamellar tooth muchlarger than lateral tooth; interlamellar region U-shaped; body 348-437 long (Fig. B67.1B) ....................................................................................... Mycobates perates Behan-Pelletier, 1994Figure B67.12. Dorsophragmata separate; porose areas tuberculate or smooth (Fig. B67.2A) ........................... 3- Dorsophragmata fused medially; porose areas with scored, wart-core-like structure; genaltectum present; body 570-672 long, almost black (Fig. B67.2B)...................................................................................................................................... Mycobates incurvatus Hammer, 1952476

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B67.23. Integument over porose areas tuberculate; sensillus long, head shorter than stalk (Fig. B67.3A)................................................................................................................................................... 4- Integument over porose areas smooth; sensillus short, head longer than stalk (Fig. B67.3B) .... 6Figure B67.34. Interlamellar seta thin, 100, passing translamella; porose areas densely tuberculate; bodylength 527-630 (Fig. B67.4B)............................................. Mycobates conitus Hammer, 1952477Figure B67.4

Almanac of Alberta Oribatida 2.3 13 January 20135. Integument over porose areas with small, distinct ridges; in very short; body length 478-557(Fig. B67.5A) ............................................................... Mycobates altus Behan-Pelletier, 1994- Integument over porose areas with small tubercles; in longer; body length 486-587 (Fig.B67.5B)....................................................................... Mycobates dryas Behan-Pelletier, 1994Figure B67.56. Notogastral setae (26-42) weakly barbed distally; lamellae striate body length; 492-590 (Fig.B67.6A) ................................................................... Mycobates azaleos Behan-Pelletier, 1994- Notogastral setae (50-64) tapered, acuminate; lamellae smooth (Fig. B67.6B) ..................................................................................................................Mycobates sarekensis Trägårdh, 1910Figure B67.6Mycobates altus Behan-Pelletier, 1994Also Known As:ABMI code/Common name: MYCOALTDiagnostic characters: tridactyl; ridged porose areas and hinge; in thin, short; striate on lamellaeand interlamellar region; bo longOverview:Barcodes:478

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check:Similar taxa: M. dryas is larger and has tuberculate porose areasABMI Site Records: 2007: none. 2008: none. 2009: 1529. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB [Rocky Mts south to NM]Images:Ecology: An alpine, boreo-montane species found in moss, lichen at Waterton Lakes.Literature: Marshall et al. (1987); Behan-Pelletier (1994).Mycobates azaleos Behan-Pelletier, 1994Also Known As:ABMI code/Common name: MYCOAZADiagnostic characters: tridactylous; bo a short club; in thin, does not reach translamella;lamellae striate; porose areas smooth; notogastral setae sparsely barbed distallyOverview:Barcodes:ID Check:Similar taxa: M. sarekensis lacks longitudinal striae on lamellae and interlamellar area (weaklydeveloped in Waterton Lakes population) and has acuminate notogastral setae (50-64).ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, BC [Waterton Lakes 2560 m; Oregon]Images:Ecology: Found in litter, moss, lichens at Waterton Lakes: a mite of dry alpine, subalpinehabitats.Literature: Behan-Pelletier (1994).Mycobates conitus Hammer, 1952Also Known As:ABMI code/Common name: MYCOCONDiagnostic characters: 527-630; tridactyl; with tightly packet tubercles over porose areas andhinge; in thick, passes translamella; ro in pocket; notogastral setae acuminateOverview: misidentified in type series and in earlier publicationsBarcodes:ID Check:479

Almanac of Alberta Oribatida 2.3 13 January 2013Similar taxa: M. beringianus has flagellate setae, loosely spaced tubercles over porose area; M.dryas have thin, short in; discrete tuberculate porose areas.ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, QC, NF; [AK, Russia]; [Lindo & Visser(2004)]Images:Ecology: Associated with mosses, lichens, litter; wet meadows; widely distributed in wet to dryarctic, subarctic (wetter habitats than M. dryas).Literature: Hammer (1952); Marshall et al. (1987); Behan-Pelletier (1994).Mycobates dryas Behan-Pelletier, 1994 (ITIS 742289)Also Known As:ABMI code/Common name: MYCODRYDiagnostic characters: 486-587; tridactyl; dorsophragmata widely separate; interlamellar setaethin, short; porose areas with small, densely packed tubercles.Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1994). 1133 SE checked by VBPApril 2008.Similar taxa: M. altus is smaller and has ridged porose areas; M. conitus has thick, elongate inand tightly packed tuberculate ornamentation; M. sarekensis has smooth porose areas.ABMI Site Records: 2007: 1133. 2008: none. 2009: none. 2010: none. 2011: 1030.DOC (1/2008): [+other] Distribution: AB [Jasper], YT, NU, NT, NF; [AK]Images:Ecology: This mite is widely distributed in dry arctic and subarctic habitats (along with M.sarekensis).Literature: Behan-Pelletier (1994).Mycobates incurvatus Hammer, 1952 (ITIS 742291)Also Known As:ABMI code/Common name: MYCOINCDiagnostic characters: 570-672 long, black; dorsophragmata fused; tridactyl; scored over poroseareas; in passes translamella; lamellae with longitudinal striations; genae with posteriormentum; in well developed.Overview:480

Almanac of Alberta Oribatida 2.3 13 January 2013Barcodes:ID Check: Determination by DEW based on Behan-Pelletier (1994). 1133 NW checked by VBPApril 2008.Similar taxa: M. hammerae also has fused dorsophragmata, but is finely tuberculate over theporose areas and has 3 pairs of very long genital setae (vs medium length). M. altus also hasa genal mentum, but has ridges over the porose areas and short, fine interlamellar setae.ABMI Site Records: 2007: 484, 544, 600, 616, 617, 825, 1068, 1069, 1070, 1101, 1133, 1135,BOG6, UPL5. 2008: 374, 375, 413, 414, 443, 472, 689, 719, 867, BOG3, UPL1. 2009: 2, 3,32, 32, 497, 499, 508, 537, 559, 560, 569. 2010: 151, 323, 353, 354, 383, 1035, 1036, 1142,ALPAC-8, OG-1037-1. 2011: 64, 65, 122, 962, 963, 1030, 1031, 1105, 1233, A635-1,A761-4.DOC (1/2008): [+other] Distribution: AB [Jasper, Kananaskis, Cypress Hills], YT, NU, NT, BC,QC, NS, NF; [AK, NY, CO]; [Lindo & Visser (2004)]Images:Ecology: Collections include boreal to subarctic in moss, lichens, litter, and meadows.Literature: Hammer (1952); Marshall et al. (1987); Behan-Pelletier (1994).*Mycobates perates Behan-Pelletier, 1994 (ITIS 742275)Also Known As:ABMI code/Common name: MYCOPERDiagnostic characters: 305-460 long, light brown; monodactyl; ro in large pocket; lamellarcusps long (2x translamella), medial tooth much larger than lateral tooth, inter-cusp area U-shaped; in (~100) robust; 18 setae on tarsus I (it absent).Overview: Mycobates perates Behan-Pelletier is a small (< a half millimetre in length) lightbrown mite with a single pair of claws.Barcodes: 444(582, 658 x 2)ID Check: Determination by DEW based on Behan-Pelletier (1994). 823 SE checked by VBPApril 2008.Similar taxa: Mycobates yukonensis Behan-Pelletier, 1994 is 454-473 long, has a translamellalonger than the length of the cusps, a thin interlamellar seta, ro in a small pocket, and intercusparea rectangular, and 20 setae on tarsus I (it present). Specimens from 444 are a bitlarger and smaller than published size range.ABMI Site Records: 2007: 823. 2008: 414, 444, 688. 2009: 2, 537. 2010: 325, 352, 384. 2011:332, 361, 452.DOC (1/2008): [+other] Distribution: YT, QC; [AK, NY]Images:Ecology: Bisexual: gravid females carry at least two large eggs. This mite has a borealdistribution and has been found in dry moss, lichens, spruce litter, and dry heaths.481

Almanac of Alberta Oribatida 2.3 13 January 2013Literature: Behan-Pelletier (1994).Mycobates sarekensis (Trägårdh, 1910)Also Known As:ABMI code/Common name: MYCOSARDiagnostic characters: tridactylous; bo a short club; in thin, does not reach translamella; poroseareas smooth; notogastral setae tapered, acuminate.Overview:Barcodes:ID Check:Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: AB, YT, NU, NT, NFImages:Ecology:Literature: Marshall et al. (1987); Behan-Pelletier (1994).Pelopsis Hall, 1911 (ITIS 734392)(Back to Mycobatidae)Diagnostic characters: bothridium cup-like, without dorsal and ventral scales; a pair ofthickened bands present on anterior tectum of notogaster; tubercle present between base ofseta in and bothridium; posterior notogastral tectum undivided; circumpedal carinaindependent of custodium; interlamellar seta densely barbed, bifurcate distally;subcapitulum without mental tectumAlso Known As: Ewingozetes Hammer, 1952; Parapelops Jacot, 1938Type species: Pelops bifurcatus Ewing, 1909World species: 3Comments: Only one species is known from Canada.Canadian species listed on DOC (bold = AB): Pelopsis bifurcatus (Ewing, 1909)Pelopsis bifurcatus (Ewing, 1909) (ITIS 742304)Also Known As: Pelopsis nudiuscula Hall, 1911ABMI code/Common name: PELOBIF482

Almanac of Alberta Oribatida 2.3 13 January 2013Diagnostic characters: Mycobatidae with lenticulus; trapezoidal anterior notogastral tectum;sensillus with short stalk and elongate club; interlamellar seta flattened, densely barbed,bifurcate distally, and inserted on a transverse ridge; sacculonotic; pteromorphs hinged;ventral length 380-410.Overview: These are small, shiny, dark brown subaquatic mites with a lenticulus, notogastralsaccules, a strong anterior notogastral tectum, and a pair of large, flattened and denselybarbed interlamellar setae that are bifurcate at the tip. They are broadly distributed acrossNorth America in wet habitats such as lake margins, wet moss, and subtidal zones.Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Eamer (2008).Similar taxa:ABMI Site Records: 2007: none. 2008: 1222. 2009: 1277, 1305. 2010: none. 2011: 1051, 1052,1185, OG-1054-1, OG-1331-1.DOC (1/2008): [+other] Distribution: NU, NT, NS, [AB Behan-Pelletier & Eamer (2008)];[Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444);Morinville]; widespread in USAImages: SEM (1222).Ecology: A small, dark, shiny mite associated with beaver ponds, floating mosses, sedges in fen,swamps, lake shores, tidal flats, various forest and grassland litters. Gravid females cancarry at least 5 large eggs. Gut contents include brown fungal hyphae and spores.Literature: Marshall et al. (1987); Behan-Pelletier & Eamer (2008).Punctoribates Berlese, 1908 (ITIS 734393)(Back to Mycobatidae)Diagnostic characters: bothridium cup-like, without dorsal and ventral scales; a pair ofthickened bands present on anterior tectum of notogaster; tubercle present between base ofseta in and bothridium; posterior notogastral tectum undivided; circumpedal carinaindependent of custodium; interlamellar seta not bifurcate distally; subcapitulum withmental tectum; tridactylous; anterior notogastral tectum with large medial process.Also Known As: Minguezetes Subías, Kahwash & Ruiz, 1990; Punctoribates (Punctoribates)(ITIS 734857)Type species: Oribates punctum CL Koch, 1839World species: 24Comments:Canadian species listed on DOC (bold = AB): [Punctoribates quadrivertex (Halbert, 1920) YTNU NT MB = transferred to Zakvatkinibates by Weigmann 2006]; Punctoribates sp. YTNU NT ON PE483

Almanac of Alberta Oribatida 2.3 13 January 2013Punctoribates palustris (Banks, 1895) (ITIS 742315)Also Known As: Oribata palustris Banks, 1895; Punctoribates armipes (Banks, 1906)ABMI code/Common name: PUNCPALDiagnostic characters: Rounded, reddish brown mite with a lenticulus; length 400-470; anteriornotogastral tectum with deep U-shaped incision; interlamellar setae curved, acuminate,barbed, reaching or passing tip of rostrum, and connected by transverse ridge; translamellatechnically present, but fine, as are lamellae; sensillus with a medium stalk and notogasterwith hinged pteromorphs and large, elliptical to oval Aa, smaller ovoid A1-3.Overview: Adults are small (0.400-0.470 mm long), brown, almost spherical mites found in wetmoss and litter on the margin of ponds, lakes, and streams. They have a lenticulus; abifurcate anterior notogastral tectum; barbed, acuminate interlamellar setae; largenotogastral porose areas.Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Eamer (2008).Similar taxa:ABMI Site Records: 2007: 217, 823. 2008: 1008, 1379, FM04, FM06. 2009: 760, 881, 916.2010: none. 2011: 608.DOC (1/2008): [+other] Distribution: [Behan-Pelletier & Eamer (2008) = AB, YT, BC, SK, ON,QC, NB, NS, NF; widespread in USA]; [Buck Creek (53.13N, 114.46W)]Images: SEM (FM04)Ecology: Associated with sphagnum and other aquatic mosses; pond margins; sedges; willow andpoplar litter; muskeg; river gravel. Gravid females carry up to 7 large eggs. Gut boli arecomposed primarily of masses of fungal hyphae and spores.Literature: Marshall et al. (1987); Behan-Pelletier & Eamer (2008).Back to Table of ContentsZetomimidae Shaldybina 1966Back to CeratozetoideaB68. Key to Zetomimidae in Alberta1. Legs I monodactyl; notogastral porose areas and setae present or absent; in

Almanac of Alberta Oribatida 2.3 13 January 2013Figure B68.1Heterozetes Willmann, 1917 (ITIS 734345)Diagnostic characters: Notogaster with fixed pteromorphs, setae reduced to alveoli, withoutporose areas; lamellar cusps cylindrical, tutorium acuminate, lineate; tarsus I monodactyl,II-IV heterotridactyl.Also Known As:Type species: Oribatella aquatica Banks, 1895World species:Comments: This genus is considered truly aquatic (reproduces in water and all stages live in freshwater or at its margins) by Schatz & Behan-Pelletier (2008).Canadian species listed on DOC (bold = AB): Heterozetes aquaticus (Banks, 1895); H.minnesotensis (Ewing, 1913); Heterozetes sp.*Heterozetes aquaticus (Banks, 1895) (ITIS 741879)Also Known As: Oribatella aquatica Banks, 1895; Heterozetes patchlorum Habeeb, 1974;ABMI code/Common name: HETEAQADiagnostic characters: 525-596; notogaster without setae or porose areas; legs I monodactyl, II-IV tridactyl with evenly curving claws; rostrum with 2 lateral teeth and crenulate marginbetween them; tutorium acuminate and lineate; seta ex absent; seta in long (163-175),passing tip of lamella; short blunt seta (not a solenidion) on genua I-II ~13 microns.485

Almanac of Alberta Oribatida 2.3 13 January 2013Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Eamer (2003). Confirmed for545 SW by VBP April 2008.Similar taxa: Heterozetes minnesotensis (Ewing, 1913) is larger (653-743), has a relativelysmaller lenticulus, and genual l” 30 long; Heterozetes sp. is reported from BC.ABMI Site Records: 2007: 545, BOG6. 2008: 1379. 2009: 569. 2010: none. 2011: 608, 1051.DOC (1/2008): [+other] Distribution: BC, ON, QC, NB, NS; [E USA]Images:Ecology: Bisexual: gravid females can carry at least 8 eggs. This mite has been reported fromgrass sod, edges of ponds, ponds, bottom muck, emergent vegetation, swamps, sphagnum,moss in flood zones, and other littoral and near littoral zone habitats. Gut contents includean annulate nematode, fungal material, unknown spores, and indeterminate sheet-likematerial.Literature: Marshall et al. (1987); Behan-Pelletier & Eamer (2003).Zetomimus Hull, 1916 (ITIS 734369)Diagnostic characters: Notogaster with fixed pteromorphs, 10 pairs of setae; 4 pairs of poroseareas (A1 displaced medially); seta ex present; lamellar cusps cylindrical, tutoriumacuminate, lineate; tarsus I-II monodactyl, III-IV tridactyl.Also Known As: Hamobates Hammer, 1962; Zetomimus (Zetomimus) Hull, 1916 (ITIS 734849)Type species: Oribata furcata Warburton & Pearce, 1905World species: 13Comments: This genus is considered truly aquatic (reproduces in water and all stages live in freshwater or at its margins) by Schatz & Behan-Pelletier (2008).Canadian species listed on DOC (bold = AB): Zetomimus cooki Behan-Pelletier, 2003; Z.francisi (Habeeb, 1974).Zetomimus francisi (Habeeb, 1974) (ITIS 742137)Also Known As: Ceratozetes francisi Habeeb, 1974ABMI code/Common name: ZETOFRADiagnostic characters: Adult length 380-460; porose areas present; legs I-II monodactyl, III-IVtridactyl with evenly curving claws; A1 mediad; seta in long, reaching tip of lamella.Overview:Barcodes: MP (650, 658)ID Check: Determination by DEW based on Behan-Pelletier & Eamer (2003).486

Almanac of Alberta Oribatida 2.3 13 January 2013Similar taxa: Zetomimus cooki Behan-Pelletier & Eamer, 2003, and Z. setosus (Banks, 1895)both have all claws tridactylous and relatively short lamellar cusps. Zetomimus naiasBehan-Pelletier, 1998, is smaller (300-332 long), has minute notogastral setae (2-6), and themale has porose areas on the ventral and anal plates. Naiazetes reevesi Behan-Pelletier,1996, has A1 positioned laterally in line with Aa and A2 and all legs tridactylous.ABMI Site Records: 2007: 216. 2008: 1222. 2009: 760, 914. 2010: none. 2011: A761-2, A761-3, OG-1212-1.DOC (1/2008): [+other] Distribution: AB, BC, ON, NB; [Moose Pasture Research Site 8 km WChipman, AB (53.656667, -112.759444)]Images: LM.Ecology: Bisexual. This mite has been collected from the stomach of a red eft; sphagnum moss;sedges in a salt marsh; moss in temporary pools; wet algae, moss, and litter in the littoralzone of ponds and lakes; and wet, grassy meadows. Gut contents of the four slide-mountedspecimens on hand contain fungal material.Literature: Marshall et al. (1987); Behan-Pelletier & Eamer (2003).*Zetomimus setosus (Banks, 1895) (ITIS xxxxxx)Also Known As: Oribatella setosa Banks, 1895ABMI code/Common name: ZETOFRADiagnostic characters: Adult length 480-564; a ll legs heterotridactyl; notogaster with poroseareas and short, fine setae; in very long (155-185); lamellar cusps short (30-38).Overview:Barcodes:ID Check: Determination by DEW based on Behan-Pelletier & Eamer (2003).Similar taxa: Zetomimus cooki Behan-Pelletier & Eamer, 2003..ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: ON, NS; [WI, NY]Images:Ecology: Bisexual.Literature: Marshall et al. (1987); Behan-Pelletier & Eamer (2003).Back to Table of Contents487

Almanac of Alberta Oribatida 2.3 13 January 2013Galumnoidea Jacot, 1925 (ITIS 733384)(Back to Key to Brachypylina)Galumnidae Jacot, 1925 (ITIS 733550)Overview: Schneider (2005) place members of this family in the carnivore-scavenger-omnivorefeeding guild (i.e. feeding on living and dead animals and on fungi).488

Almanac of Alberta Oribatida 2.3 13 January 2013B69. Key to the genera of Galumnidae in Alberta1. Prodorsal lines L&S absent; porose area Aa divided into 2 small oval to irregular sections (Fig.B69.1A) ......................................................................................................... Pilogalumna (4)- Prodorsal line L present; porose area Aa usually entire, often large, elongate to oval (Fig.B69.1B)................................................................................................................................... 2Figure B69.12. Lamellar seta between L and S, often on L; Aa oval (Fig. B69.2A) ........................ Galumna (3)- Lamellar seta between L and L; Aa oval or flared laterally, somewhat horn-shaped (rarelydivided); 500-590 long (Fig. B69.2B) .............................................. Pergalumna sp. 1 DEW489Figure B69.2

Almanac of Alberta Oribatida 2.3 13 January 2013Galumna von Heyden, 1826 (ITIS 734563)Diagnostic characters: lamellar seta between lines L and S; 10 pairs setae or their alveoliAlso Known As: Galumna (Galumna) Heyden, 1826 (ITIS 734923)Type species: Notaspis alatus Hermann, 1804World species: ~180 spp. including more than 20 from North AmericaComments:Canadian species listed on DOC (bold = AB): Galumna hudsoni Hammer, 1952; G. nigra(Ewing, 1909); Galumna sp.B70. Key to Galumna in Alberta1. Aa elongate oval, perpendicular to pteromorph hinge; notogastral setae present (7-12 long);.................................................................................................................. Galumna sp. 4 DEW- Aa circular or a compressed oval +/- parallel to pteromorph hinge; notogastral setaerepresented only by alveoli ........................................................................................................ 22. Large, (>550 ventral length), rotund mites with subcircular Aa ................ Galumna sp. 1 DEW- Smaller, (

Almanac of Alberta Oribatida 2.3 13 January 2013ABMI Site Records: 2007: 359, 649, 793. 2008: 1116, 1222, 1222, 1224, 1635, FM03. 2009:1493, 1645, 72M-1, 72M-5, 82H-3. 2010: 152, 208. 2011: 1125, 1157, 1158, OG-1082-1,OG-1122-1, OG-1190-1, OG-1248-1, OG-1282-1.DOC (1/2008): [+other] Distribution: Galumna sp. reported from YT, NU, NT, ON, QC, NB,NS; [Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)]Images: SEM (MP)Ecology: Bisexual: gravid adult females can carry at least 6 eggs. Gut contents includeCollembola cuticle, coarse bits of organic matter, dark fungal hyphae and spores.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987).*Galumna sp. 2 DEW (RAM 99000136)Also Known As:ABMI code/Common name: GALUSP2Diagnostic characters: Male ventral length 470-480, female 480-510. Light brown in colour.across), niche with smaller (~8) subcircular porose area; bo (~115) +/-setiform with long(~2) relatively sparse barbs, acuminate, not quite reaching back to end of pteromorph hinge;in (~58) with long barbs, length ~2/3rds distance in-in (~73) slightly longer short-barbed le(55); ro (~43) curved, with long dorsal barbs and tapered tip. Notogaster withmicrotuberculate ornamentation, setae reduced to alveoli, pteromorph transversely striateand folded, with alveolus of c3 anteriad ‘window’; large (reservoir 10-12) accessory glandopening posterior to alveoli of la and lm. Male with 9 large porose areas: Aa (~37) elongate,parallel to pteromorph hinge; A1 (~23) subcircular, A2 (~52-55) elongate; A3 (~55) andposterior porose area (~60) similar; and one minute (~6) subcircular posterior dorsal porosearea. Female similar but with A2 (~28) or divided into two small areas; A3 (~20); posteriorporose area (~70).Overview:Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).Similar taxa: near G. flagellata Willmann, 1923ABMI Site Records: 2007: 1526. 2008: none. 2009: none. 2010: none. 2011: 1461.DOC (1/2008): [+other] Distribution: [Dinosaur Provincial Park] Galumna sp. reported from YT,NU, NT, ON, QC, NB, NSImages:Ecology: Bisexual: gravid females can carry at least 3 large eggs. Gut contents include spinosearthropod cuticle (apparently a springtail in one individual), bits of organic matter, andfungal spores.Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann (2006).491

Almanac of Alberta Oribatida 2.3 13 January 2013*Galumna sp. 3 DEWAlso Known As:ABMI code/Common name: GALUSP3Diagnostic characters: Female ventral length 510. Light brown in colour. Prodorsum withrugose pattern of small ridges, porose area Ad (~30 across), niche porose area large (~15);bo (~100) +/-setiform with short relatively sparse barbs, acuminate, reaching just past halfway to end of pteromorph hinge; in (~15) minute, smooth; le (~23) simple; ro (~60) curved,sparsely barbed, and tapered tip. Notogaster microtuberculate over pebbly ornamentation(1--like ornamentation, transverselystriate and folded, with alveolus of c3 anteriad ‘window’. Female with very large (~70)elongate Aa parallel to pteromorph hinge, A1 (~16) subcircular; A2 (~48) elongate; A3(~43) elongate; posterior porose area not visible on specimen; numerous small sub-poroseareas present.Overview:Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: 72M-7. 2010: none. 2011: none.DOC (1/2008): [+other] Distribution: Galumna sp. reported from YT, NU, NT, ON, QC, NB, NSImages:Ecology:Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann (2006).*Galumna sp. 4 DEWAlso Known As:ABMI code/Common name: GALUSP4Diagnostic characters: Female ventral length 470. Sensillus bo (~125) setiform, acuminate andwith long barbs, acuminate, reaching just past half way to end of pteromorph hinge; in(~55) barbed; Aa elongate oval (~35 long) that is perpendicular to pteromorph hinge; A1subcircular (13), A2 subcircular (9-10), A3 oval (25); short notogastral setae present (7-12long).Overview:Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).Similar taxa:ABMI Site Records: 2007: none. 2008: none. 2009: none. 2010: 1538. 2011: none.DOC (1/2008): [+other] Distribution: Galumna sp. reported from YT, NU, NT, ON, QC, NB, NS492

Almanac of Alberta Oribatida 2.3 13 January 2013Images:Ecology:Literature: Gilyarov & Krivolutsky (1975); Marshall et al. (1987); Weigmann (2006).Pergalumna Grandjean, 1936 (ITIS 734572)Diagnostic characters: lamellar setae between lines L (S present); notogastral setae reduced toalveoli; dorsosejugal furrow straight, 2 strong phragmata.Also Known As: noneType species: Oribates nervosus Berlese, 1914World species: 105 spp. including about 15 from North AmericaComments:Canadian species listed on DOC (bold = AB): Pergalumna dodsoni Nevin, 1979; P. emarginata(Banks, 1895); Pergalumna formicaria (Berlese, 1914); Pergalumna sp.*Pergalumna sp. 1 DEW (RAM 99000045)Also Known As:ABMI code/Common name: PERGSP1Diagnostic characters: Ventral length 500-590; dorsosejugal furrow present and with 2dorsophragmata; Aa tack-shaped, A1-2 oval, A3 elongate oval; in (~60) ~½ distance in-in,about as long as ro; le 20% longer; alar seta reduced to alveolus; bo relatively short (~100),with sparsely barbed, fusiform head; distal margins of pteromorph without raised, reticulatepattern.Overview: This is most likely Pergalumna formicaria (Berlese, 1914).Barcodes: 345 (658 x 3), 444 (658), 900 (658 x 2)ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).Similar taxa: Pergalumna formicaria (Berlese, 1914) [YT NU NT QC; Holarctic] [=Oribatesformicarius Berlese, 1914]ABMI Site Records: 2007: 277, 330, 331, 358, 359, 360, 545, 585, 586, 616, 618, 631, 632, 632,633, 649, 663, 665, 791, 792, 793, 857, BOG7, UPL4, UPL6. 2008: 316, 344, 345, 412,414, 472, 689, 719, 752, 866, 867, 899, 900, 1009, 1222, BOG1, BOG3, BOG4, FM03,FM04, FM06, FM07PRO3, UPL2. 2009: 1, 3, 13, 15, 33, 34, 498, 506, 507, 529, 560, 569,570, 698, 699, 728, 760, 761, 881, 1305, 1493, 1510, 1529, 1530, 1584, 72M-1. 2010: 151,323, 325, 352, 353, 383, 890, 892, 1036, 1142, 1170, 1451, 1538, ALPAC-4, ALPAC-5,ALPAC-8, ALPAC-9, ALPAC-10, ALPAC-11, ALPAC-13, ALPAC-14, ALPAC-15,ALPAC-16, OG-1325-1. 2011: 64, 93, 302, 391, 392, 422, 481, 483, 1017, 1023, 1050,1058, 1105, 1106m 1125, 1126, 1159, 1217, 1218, A477, A602-1, A608-3, A637-1, A7,A761-4, OG-1090-1, OG-1122-1, OG-1275-1, OG-1283-1, OG-1334-1, OG-1338-1.493

Almanac of Alberta Oribatida 2.3 13 January 2013DOC (1/2008): [+other] Distribution: [Parkallen] Pergalumna sp. reported from MB, ON, NB,NSImages:Ecology: Bisexual: gravid females can carry at least 7 large eggs. Gut contents include brownand unpigmented fungal hyphae and spores, and what appear to be moss spores.Literature: Marshall et al. (1987); Weigmann (2006).Pilogalumna Grandjean, 1956 (ITIS 73xxxx)Diagnostic characters: Prodorsum with line L absent and line S absent; at least notogastral setaepresent, but these may be minute; dorsosejugal furrow obsolescent; dorsophragmata absent.Also Known As:Type species: Pilogalumna ornatula Grandjean l956World species: 13 spp. including Pilogalumna binadalares (Jacot, 1929) from Eastern NorthAmerica, P. cozadensis Nevin, 1976 from Nebraska, and the Holarctic P. tenuiclava(Berlese, 1908).Comments:Canadian species listed on DOC (bold = AB): Pilogalumna binadalares (Jacot, 1929)Pilogalumna sp.B71. Key to the species of Pilogalumna in Alberta1. Ventral length >0.55 mm long; bo spindle-shaped, acuminate .............................................................................................................................................................. Pilogalumna sp. 1 DEW- Ventral length

Almanac of Alberta Oribatida 2.3 13 January 2013ID Check: Determination by VBP and DEW based on Gilyarov & Krivolutsky (1975);Weigmann (2006). Pilogalumna apparently n. sp. according to VBP October 2008 for 1042below unusual ‘Pilogalumna’. Sites 1042, 1043, 1379 are larger and have larger A3.Similar taxa: Pilogalumna has notogastral setae, although mostly minute; Acrogalumnalongipluma (Berlese, 1904) has ‘none’. Pilogalumna sp. 2 DEW is very similar, but issmaller, has less well developed setae, a smaller A3 porose area, and an inflated head to thesensillus that lacks a relatively long distal mucro.ABMI Site Records: 2007: 330, 358, 359, 484, 512, 543, 576, 584, 600, 601, 664, 792, 825, 857,1070, 1103, BOG5, UPL4, UPL8, UPL9. 2008: 343, 413, 443, 690, 720, 721, 866, 867,899, 932, 933, 1085, 1042, 1043, 1116, 1379, 1404, BOG1, BOG4, FM03, FM04, FM06,FM08, SL11, SL12, SL13, SL21, PRO3, UPL1, UPL2. 2009: 1, 3, 507, 528, 569, 569, 697,761, 916, 1491, 1510, 1510, 1529, 1568, 1568, 1627. 2010: 151, 325, 875, 908, 890, 923,1175, 1176, 1203, 1208, 1209, 1237, ALPAC-1, ALPAC-2, ALPAC-4, ALPAC-4,ALPAC-8, ALPAC-9, ALPAC-10, ALPAC-13, ALPAC-14, ALPAC-15, ALPAC-16, OG-910-1, OG-910-2, OG-943-1, OG-976-1, OG-1005-1, OG-1071-1, OG-1104-1, OG-1136-1,OG-1171-2, OG-1208-1, OG-1352-1. 2011: 63, 481, 964, 968, 969, 984, 997, 1003, 1024,1029, 1030, 1104, 1126, 1136, 1157, 1158, 1233, 1238, 1262, 1304, 1461, 1482, 1593,A602-1, A608-2, A608-3, A637-1, A637-2, A692-1, A692-2, A7, A757-1, A757-2, A761-1, A761-2, OG-1122-1, OG-1212-1, OG-1248-1, OG-1275-1, OG-1334-1.DOC (1/2008): [+other] Distribution: Pilogalumna sp. reported from AB, NF; [Lindo & Visser(2004)]; [Moose Pasture Research Site 8 km W Chipman, AB (53.656667, -112.759444)]Images: SEM from Moose Pasture Research Site 8 km W Chipman, AB.Ecology: Bisexual: gravid females carry up to 18 eggs (1042). Gut contents contain mostlypigmented and unpigmented fungal hyphae and occasional moss spores.Literature: Marshall et al. (1987); Weigmann (2006).*Pilogalumna sp 2 DEW (RAM 99000003)Also Known As: Acrogalumna? sp. 2ABMI code/Common name: PILOSP2Diagnostic characters: Ventral length 480-500. Prodorsum with fine, pebbly microtubercles,lamellar and tutorial lines absent; dorsosejugal furrow indistinct, with distinct, browndorsophragmata; Ad present, but not strongly porose; bo (~65) long, with barbed, fusiformhead; other prodorsal setae simple, acicular: in (25?), le (37), ro (37), ex (~7) minute.Notogaster and pteromorphs with fine, pebbly microtubercles; notogastral setae obsolete(la, lm, lp, h3) or minute (c3 [5], h1 [5], h2 [7], p1-3); Aa divided, suboval (ventral partsmaller, both 17-18 at widest point), A1-2 suboval (16-18), A3 somewhat larger (~25),oval.Overview: Another ‘Pilogalumna’ with minute ‘pils’.Barcodes:ID Check: Determination by DEW based on Gilyarov & Krivolutsky (1975); Weigmann (2006).495

Almanac of Alberta Oribatida 2.3 13 January 2013Similar taxa: Pilogalumna has notogastral setae, although mostly minute or obsolete;Acrogalumna longipluma (Berlese, 1904) has ‘none’. Pilogalumna sp. 1 DEW is verysimilar, but is larger, has better developed setae, a much larger, elongate A3 porose area,and a slender spindle-shaped head to the sensillus.ABMI Site Records: 2007: 1135. 2008: none. 2009: 529, 699. 2010: 325, 384, 909, 942, 1037,1170. 2011: 483, 1593, 1605.DOC (1/2008): [+other] Distribution: Pilogalumna sp. reported from AB, NF; [Lindo & Visser(2004)]Images:Ecology: Bisexual: gravid females can carry at least 6 eggs. Gut contents include fungal hyphaeand bits of organic matter.Literature: Marshall et al. (1987).496

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Almanac of Alberta Oribatida 2.3 13 January 2013Wunderle I., Beck L. & Woas S. 1990. Ein Beitrag zur Taxonomie und Ökologie derOribatulidae und Scheloribatidae (Acari, Oribatei) in Südwestdeutschland. Andrias,Karlsruhe 7: 15-60.Back to Table of Contents511

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