FIGURE 1 - uploaded by David B. Weissman
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a–b. Holotype male of Gryllus mandevillus. Fig. 1a. Dorsal view. Fig. 1b. Lateral view, right tegmen removed, arrow pointing to now visible hind wing.
Source publication
Walker (in Weissman, Walker, & Gray 2009) described a new species of Gryllus, G. jamaicensis, a second species recorded from Jamaica to the widespread G. assimilis (Fabricius 1775). The two taxa are apparent sister species and are morphologically indistinguishable. They can be separated by three calling song characteristics: pulses per chirp, avera...
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The conopid fly Stylogaster neglecta Williston (Diptera: Conopidae) is a parasitoid with no known host. We report this species as the first recorded dipteran parasitoid of Oecanthus nigricornis Walker (Orthoptera: Gryllidae) (black-horned tree crickets). We reared field-collected O. nigricornis juveniles over several months in 2017 and found that l...
Background
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Citations
... Acheta domesticus ( Fig. 1) Prior to 1977 cricket breeders in both the USA and Europe almost exclusively raised the (European) house cricket, A. domesticus, already a cosmopolitan species (Weissman & Rentz 1977;Weissman et al. 1980;Walker 2012). Starting in Europe in 1977 and North America in 1988 (Styer & Hamm 1991), production facilities were infected by AdDNV, although severe epizootics were not apparent in North America until 2009/ 2010 . ...
... Gryllus assimilis (Fig. 2a,b) Originally described from Jamaica in 1775 where it is one of three native Gryllus species on the island (Weissman et al. 2012), this taxon goes by various common names: Jamaican field cricket, Jamaican brown cricket, and brown silent cricket by European breeders (e.g. Bugs-International of Germany). ...
The cricket pet food industry in the United States, where as many as 50 million crickets are shipped a week, is a multimillion dollar business that has been devastated by epizootic Acheta domesticus densovirus (AdDNV) outbreaks. Efforts to find an alternative, virus-resistant field cricket species have led to the widespread USA (and European) distribution of a previously unnamed Gryllus species despite existing USA federal regulations to prevent such movement. We analyze and describe this previously unnamed Gryllus and propose additional measures to minimize its potential risk to native fauna and agriculture. Additionally, and more worrisome, is our incidental finding that the naturally widespread African, European, and Asian "black cricket," G. bimaculatus, is also being sold illegally in southern California pet food stores. We assayed crickets of all five USA and European commercial species for presence of the AdDNV to document extent of the infection-all five species can be infected with the virus but only A. domesticus is killed. Based on its already cosmopolitan distribution, apparent inability to live away from human habitation, and resistance to AdDNV, we suggest that Gryllodes sigillatus is the best-suited replacement cricket for commercial production.
... Acheta domesticus ( Fig. 1) Prior to 1977 cricket breeders in both the USA and Europe almost exclusively raised the (European) house cricket, A. domesticus, already a cosmopolitan species (Weissman & Rentz 1977;Weissman et al. 1980;Walker 2012). Starting in Europe in 1977 and North America in 1988 (Styer & Hamm 1991), production facilities were infected by AdDNV, although severe epizootics were not apparent in North America until 2009/ 2010 . ...
... Gryllus assimilis (Fig. 2a,b) Originally described from Jamaica in 1775 where it is one of three native Gryllus species on the island (Weissman et al. 2012), this taxon goes by various common names: Jamaican field cricket, Jamaican brown cricket, and brown silent cricket by European breeders (e.g. Bugs-International of Germany). ...
The Bahama endemic field cricket, Gryllus bryanti Morse, 1905, previously known from only the lost female holotype, is redescribed, including designation of a neotype. Known only from Andros and Eleuthera Islands in The Bahamas, where it occurs with G. assimilis, it can be separated from the latter by song, tegmen file characteristics, head wider than pronotum, and genetics.
