Silusa
Erichson, 1837
Species Guides
2Silusa is a of rove beetles (Staphylinidae: Aleocharinae: Homalotini) established by Erichson in 1837. The genus occurs in the Nearctic and Palearctic regions, with documented in Europe and North America. Nearctic species have been subject to recent taxonomic revision, which expanded known distributions and clarified species boundaries through examination of external and genital .
Pronunciation
How to pronounce Silusa: /sɪˈluːsə/
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Identification
Nearctic can be distinguished using a combination of external and male genital characters; a key to Canadian species is available. Silusa valens has been synonymized with S. alternans. Several species formerly placed in Silusa (S. rutilans, S. modica, S. gracilis, S. nanula) have been transferred to the Leptusa.
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Distribution
Europe (Denmark, Norway, Sweden); North America including Canada (Alberta, British Columbia, Quebec, New Brunswick, Nova Scotia) and USA (Alaska, Minnesota, Washington, New Hampshire, California, Georgia, New York).
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Taxonomic History
Silusa langori was described as a new from Alberta in 2002. Lectotypes were newly designated for S. alternans and S. californica to stabilize .