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Information about the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

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Genus Trechus

Carabid - Trechus obtusus Trechus chalybeus Trechus rubens small carabid - Trechus Trechus hydropicus canus - Trechus hydropicus - male Carabidae - Trechus Trechus satanicus - male Trechus vandykei pisgahensis - Trechus vandykei - male
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Carabidae (Ground Beetles)
Subfamily Trechinae
Tribe Trechini
Genus Trechus
Explanation of Names
Trechus Clairville 1806
Greek 'runner'
~70 spp. (of which 3 adventive) in 2 subgenera (and 8 species-groups) in our area, ~900 spp. in 8 subgenera worldwide (~90% of the spp. are in the nominate subgenus)(1)
much of the world but >92% of spp. are Palaearctic; in our area, across NA, but by far most diverse in Appalachia (9 spp., incl. all three adventive ones, occur in Canada)(1)
native spp. mostly in forest litter(2)
Works Cited
1.Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico
Bousquet Y. 2012. ZooKeys 245: 1–1722.
2.American Beetles, Volume I: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia
Arnett, R.H., Jr., and M. C. Thomas. (eds.). 2000. CRC Press LLC, Boca Raton, FL.