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Tribe Cychrini

Scaphinotus angulatus? - Scaphinotus angulatus Ground Beetle ? Scaphinotus - Scaphinotus angusticollis Scaphinotus andrewsii - male Sphaeroderus bicarinatus - female Sphaeroderus - Sphaeroderus stenostomus Sphaeroderus stenostomus lecontei - larva - Sphaeroderus stenostomus Scaphinotus Scaphinotus viduus
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
~90 spp. in 3 genera in our area, ~200 spp in 4 genera total(1)
Range
Holarctic + adjacent montane Oriental(2)
Habitat
cool damp woods and ravines(2)
Food
mostly snails, some commonly feed on slugs; may also feed on caterpillars, worms and other soft-bodied prey(3)
Remarks
Wings highly reduced; elytra fused. Most species stridulate when disturbed.(3)
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.
3.A natural history of the ground-beetles (Coleoptera: Carabidae) of America north of Mexico.
Larochelle and Larivière. 2003. Pensoft Publishers, Bulgaria. 584 pp.