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Family Trachypachidae - False Ground Beetles

Trachypachidae - Trachypachus holmbergi - Trachypachus inermis Trachypachidae - Trachypachus holmbergi - Trachypachus inermis Trachypachidae - Trachypachus holmbergi - Trachypachus inermis Trachypachus gibbsii LeConte - Trachypachus gibbsii Trachypachus holmbergi - Trachypachus inermis Trachypachus - Trachypachus inermis Trachypachus inermis Trachypachus inermis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Trachypachidae (False Ground Beetles)
Explanation of Names
Trachypachidae Thomson 1857
Numbers
3 spp. in a single genus in NA, 6 spp. in 2 genera total(1)(2)
Identification
Very similar to Carabidae, but the antennae are not densely pubescent and the hind coxae extend to the elytral margins(1); larvae lack a ligula(3)
species descriptions in(3)
Range
one genus northern holarctic (w. NA & n. Eurasia), another in Chile(2)
Habitat
Usually leaf litter in forested areas(1)
Food
Predators/scavengers(1)
Remarks
This family has uncertain phylogenetic relationships. More information can be found in (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.
3.The ground-beetles (Carabidae, excl. Cicindelinae) of Canada and Alaska, parts 1—6
C.H. Lindroth. 1961. Opuscula Entomologica Supplementa XX, XXIV, XXIX, XXXIII, XXXIV, XXXV.