Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Tribe Cychrini

Unknown Mating Carabids - Scaphinotus marginatus - male - female Scaphinotus striatopunctatus ? - Scaphinotus Snail eater, Cychrus? - Scaphinotus marginatus - - Scaphinotus punctatus species? - Sphaeroderus stenostomus Scaphinotus elevatus (Fabricius) - Scaphinotus elevatus ground beetle - Sphaeroderus stenostomus Scaphinotus kathleenae Ball, 1966 - Scaphinotus petersi - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga
Family Carabidae (Ground Beetles)
Subfamily Carabinae
Tribe Cychrini
Explanation of Names
Cychrini Perty 1830
Numbers
>60 spp. (with many sspp.) in 3 genera in our area, ~300 spp. in 6 genera total(1)(2)
Range
Holarctic + adjacent montane Oriental(3)
Habitat
cool damp woods and ravines(3)
Food
mostly snails, some commonly feed on slugs; may also feed on caterpillars, worms and other soft-bodied prey(4); head adapted for going into snail's shell.
Remarks
Wings reduced; elytra fused. Most species stridulate when disturbed.(4)
Works Cited
1.Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico
Bousquet Y. 2012. ZooKeys 245: 1–1722.
2.Catalogue of Life
3.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.
4.A natural history of the ground-beetles (Coleoptera: Carabidae) of America north of Mexico.
Larochelle and Larivière. 2003. Pensoft Publishers, Bulgaria. 584 pp.