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Tribe Trechini

Small beetle - Trechus obtusus Carabid - Trechus obtusus Ground Beetle - Trechus obtusus small carabid - Trechus Blemus discus? - Blemus discus Small red carabid - Trechus obtusus T. ovipennis - Trechus ovipennis Trechus crassiscapus - Trechus
Classification
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
Numbers
ca. 300 spp. in 9 genera in our area (all in the subtribe Trechina), ~2650 spp. in >170 genera of 2 subtribes worldwide(1)(2)
Size
typically 2-7 mm(1)
Identification
monotonous in color and form; eyes very often small or lacking(1)
Works Cited
1.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.
2.Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico
Bousquet Y. 2012. ZooKeys 245: 1–1722.