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For Insects, Spiders & Their Kin
For the United States & Canada
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Species Tasgius ater

Rove - Tasgius ater Rove Beetle? - Tasgius ater Tasgius melanarius? - Tasgius ater Rove Beetle - Tasgius ater Staph 101 - Tasgius ater Large Rove Beetle - Tasgius ater Large Rove Beetle - Tasgius ater Rove beetle - Tasgius ater
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Staphyliniformia)
Superfamily Staphylinoidea (Rove, Carrion and Fungus Beetles)
Family Staphylinidae (Rove Beetles)
Subfamily Staphylininae (Large Rove Beetles)
Tribe Staphylinini
Subtribe Staphylinina
Genus Tasgius
Species ater (Tasgius ater)
Synonyms and other taxonomic changes
=Ocypus ater
Explanation of Names
Tasgius ater (Gravenhorst 1802)
15-20 mm
Pronotum shiny, with punctures of two sizes (diagnostic) and smooth midline
native to w. Palaearctic, introduced elsewhere (NA, New Zealand); occurs across Canada and in scattered US locations except sw. US(1)
under debris near water (including marine situations) but also common near habitations (in gardens, cellars, shacks)(1)
first recorded in NA in 1802(1)
Internet References
Works Cited
1.Introduced Staphylinidae (Coleoptera) in the Maritime Provinces of Canada
Majka C.G., Klimaszewski J. 2008. The Canadian Entomologist 140: 48-72.
2.Staphylinidae of eastern Canada and the adjacent United States. Keys to subfamilies; Staphylininae: ...
Brunke A., Newton A., Klimaszewski J., Majka C.G., Marshall S. 2011. Canadian Journal of Arthropod Identification 12: 1-110.