Family Staphylinidae Rank Genus | Order Coleoptera Subfamily Aleocharinae | |
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Gymnusa feeding
Gymnusa is a genus of rove beetles in the subfamily Aleocharinae and tribe Gymnusini. The coloration of this genus is highly coherent, with most species black and a few dark, dark brown. They range in length from 4.2 millimeters to 6.5 millimeters.
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Gymnusa live in semi-aquatic and aquatic environments, but never marine: they live in detritus in swamps, in bogs, streams, and slow-moving rivers. They live in the Nearctic and Palearctic in Europe and North America.
Gymnusa collecting
References
Gymnusa Wikipedia(Text) CC BY-SA