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Siphlonurus Stock Photos and Images

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Siphlonurus Stock Photos and Images

Nymph of the mayfly siphlonurus aestivalis isolated on white background Stock Photo
RF2C7K7FX–Nymph of the mayfly siphlonurus aestivalis isolated on white background
Summer mayfly (Siphlonurus lacustris) adult emerging, Europe, May Stock Photo
RM2BNECTG–Summer mayfly (Siphlonurus lacustris) adult emerging, Europe, May
Mayfly, Siphlonurus sp. Underside view of Nymph underwater Stock Photo
RMAA0A15–Mayfly, Siphlonurus sp. Underside view of Nymph underwater
Mayfly Siphlonurus lacustris dew wings resting Scotland August mayfly mayfliestail invertebrate invertebrates animal animals Stock Photo
RMBWWR1M–Mayfly Siphlonurus lacustris dew wings resting Scotland August mayfly mayfliestail invertebrate invertebrates animal animals
. The Canadian entomologist. Insects; Entomology. MAYFLIES OF THE SIPHLONURUS GROUP.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Entomological Society of Canada (1863-1871); Entomological Society of Canada (1951- ); Entomological Society of Ontario. Ottawa [etc. ] Entomological Society of Canada [etc. ] Stock Photo
RMRG30D3–. The Canadian entomologist. Insects; Entomology. MAYFLIES OF THE SIPHLONURUS GROUP.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Entomological Society of Canada (1863-1871); Entomological Society of Canada (1951- ); Entomological Society of Ontario. Ottawa [etc. ] Entomological Society of Canada [etc. ]
. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 215 ^^^^. Fig. 78. Døgnfluer. Habitus af Ephemera vulgata <^ (A); vinger af Leptophlebia marginata (B), Epliemerella ignita (C), Caenis dimi- diata (D), Baétis vernus (E), Siphlonurus aestivalis (F) og Hepta- genia flava (G), ledsaget af specialtegninger af forvingernes bag- hjørner. Pilene viser mod 1. analribbe.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the ori Stock Photo
RMPFHCR1–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 215 ^^^^. Fig. 78. Døgnfluer. Habitus af Ephemera vulgata <^ (A); vinger af Leptophlebia marginata (B), Epliemerella ignita (C), Caenis dimi- diata (D), Baétis vernus (E), Siphlonurus aestivalis (F) og Hepta- genia flava (G), ledsaget af specialtegninger af forvingernes bag- hjørner. Pilene viser mod 1. analribbe.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the ori
Summer mayfly (Siphlonurus lacustris) adult emerging, Europe, May Stock Photo
RM2BNECT8–Summer mayfly (Siphlonurus lacustris) adult emerging, Europe, May
mayflies tail mayfly August Scotland resting wings dew Siphlonurus lacustris Mayfly Ephemeroptera ephemeroptera invertebrate Stock Photo
RMBWWR1P–mayflies tail mayfly August Scotland resting wings dew Siphlonurus lacustris Mayfly Ephemeroptera ephemeroptera invertebrate
. The Canadian entomologist. Insects; Entomology. MAYFLIES OF THE SIPHLONURUS GROUP.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Entomological Society of Canada (1863-1871); Entomological Society of Canada (1951- ); Entomological Society of Ontario. Ottawa [etc. ] Entomological Society of Canada [etc. ] Stock Photo
RMRG30GM–. The Canadian entomologist. Insects; Entomology. MAYFLIES OF THE SIPHLONURUS GROUP.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Entomological Society of Canada (1863-1871); Entomological Society of Canada (1951- ); Entomological Society of Ontario. Ottawa [etc. ] Entomological Society of Canada [etc. ]
Summer mayfly (Siphlonurus lacustris) adult emerging, Europe, May Stock Photo
RM2BNECT6–Summer mayfly (Siphlonurus lacustris) adult emerging, Europe, May
Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions. Stock Photo
RM2BNECPG–Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions.
. The Canadian entomologist. Entomology. 47 THE CANADIAN ENTOMOLOGIST. Finally, while the bifid nature of the ninth abdominal plate in the female is very pronounced in Chirotonetcs, it is also very slightly noticeable in the type species of Amcletus (subnotatiis Eaton), and the character must be used with caution. As a basis for primary separation I find it more satisfactory to use a character found in the tarsal claws; the dissimilarity of these claws in each tarsus separ- ates Ameletus (and incidentally Colohurus, which is not a North American gen- us) from Siphlonurus and Chirotonctes. To s Stock Photo
RMRG304H–. The Canadian entomologist. Entomology. 47 THE CANADIAN ENTOMOLOGIST. Finally, while the bifid nature of the ninth abdominal plate in the female is very pronounced in Chirotonetcs, it is also very slightly noticeable in the type species of Amcletus (subnotatiis Eaton), and the character must be used with caution. As a basis for primary separation I find it more satisfactory to use a character found in the tarsal claws; the dissimilarity of these claws in each tarsus separ- ates Ameletus (and incidentally Colohurus, which is not a North American gen- us) from Siphlonurus and Chirotonctes. To s
Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions. Stock Photo
RM2BNECT1–Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions.
. The Canadian entomologist. Entomology. Fig. 3. Male genitalia of a. Siphlonuroides croesus McD.: /'. Siphlonuroides midas IMcD. ; c Siphlonurus berenice MdD.; d. Siphlonurus phyllis MicD.; c. Atneletus validiis McD. Siphlonurus phyllis sp. nov. Male. Head and thorax l)lack brown, the latter shaded somewhat with yellowish anteriorly. Abdomen dark brown dorsally with the usual subdorsal dark streaks and a bifid patch of yellow laterally on the anterior margin of each segment, becoming more extended on posterior segments; ventrally yellowish, very characteristically marked with a brown median s Stock Photo
RMRG303D–. The Canadian entomologist. Entomology. Fig. 3. Male genitalia of a. Siphlonuroides croesus McD.: /'. Siphlonuroides midas IMcD. ; c Siphlonurus berenice MdD.; d. Siphlonurus phyllis MicD.; c. Atneletus validiis McD. Siphlonurus phyllis sp. nov. Male. Head and thorax l)lack brown, the latter shaded somewhat with yellowish anteriorly. Abdomen dark brown dorsally with the usual subdorsal dark streaks and a bifid patch of yellow laterally on the anterior margin of each segment, becoming more extended on posterior segments; ventrally yellowish, very characteristically marked with a brown median s
Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions. Stock Photo
RM2BNECT9–Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions.
. Bulletin. Natural history; Natural history. Fig. 2il.Sip//lonurus alternatus, head of adult male, lateral aspect. Fig. 242. — Sipltlor.urus quehecensis, male genitalia. Fig. lATs.—S'iphlonurus rapidus, male eeni- talia. ALTERNATUS Fig. 2A.—Siplilonurits typiciis, male eeni- talia. Fig. 245.—Sip//loniin/s marshalli, male eeni- talia. Fig. 246.—Siplilonurus alternatus, male ceni- talia.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the or Stock Photo
RMRGWDCE–. Bulletin. Natural history; Natural history. Fig. 2il.Sip//lonurus alternatus, head of adult male, lateral aspect. Fig. 242. — Sipltlor.urus quehecensis, male genitalia. Fig. lATs.—S'iphlonurus rapidus, male eeni- talia. ALTERNATUS Fig. 2A.—Siplilonurits typiciis, male eeni- talia. Fig. 245.—Sip//loniin/s marshalli, male eeni- talia. Fig. 246.—Siplilonurus alternatus, male ceni- talia.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the or
Summer mayfly nymph (Siphlonurus lacustris), underwater, Europe, June, controlled conditions Stock Photo
RM2AKEN31–Summer mayfly nymph (Siphlonurus lacustris), underwater, Europe, June, controlled conditions
Summer mayfly nymphs (Siphlonurus lacustris), Europe, May. Controlled conditions. Stock Photo
RMPBAD0W–Summer mayfly nymphs (Siphlonurus lacustris), Europe, May. Controlled conditions.
. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 215 ^^^^. Fig. 78. Døgnfluer. Habitus af Ephemera vulgata <^ (A); vinger af Leptophlebia marginata (B), Epliemerella ignita (C), Caenis dimi- diata (D), Baétis vernus (E), Siphlonurus aestivalis (F) og Hepta- genia flava (G), ledsaget af specialtegninger af forvingernes bag- hjørner. Pilene viser mod 1. analribbe.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the ori Stock Photo
RMRD41WR–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 215 ^^^^. Fig. 78. Døgnfluer. Habitus af Ephemera vulgata <^ (A); vinger af Leptophlebia marginata (B), Epliemerella ignita (C), Caenis dimi- diata (D), Baétis vernus (E), Siphlonurus aestivalis (F) og Hepta- genia flava (G), ledsaget af specialtegninger af forvingernes bag- hjørner. Pilene viser mod 1. analribbe.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the ori
Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions. Stock Photo
RMPBAD10–Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions.
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