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Genus Sphaeroderus - Small Snail Eating Beetles

Sphaeroderus? - Sphaeroderus stenostomus Sphaeroderus stenostomus lecontei - Sphaeroderus stenostomus Sphaeroderus nitidicollis nitidicollis - Sphaeroderus nitidicollis Ground Beetle - Sphaeroderus stenostomus Small Snail Eating Beetle - Sphaeroderus stenostomus Sphaeroderus schaumii - female Sphaeroderus - Sphaeroderus stenostomus Sphaeroderus larva?  - Sphaeroderus
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 Carabinae
Tribe Cychrini
Genus Sphaeroderus (Small Snail Eating Beetles)
Explanation of Names
Sphaeroderus Dejean 1826
Numbers
6 spp. (with several sspp.), all in our area(1)
Range
ne. NA to n. GA & e. SK(1) Also known from Florida and Arkansas.
Remarks
All species are flightless, with wings highly reduced and elytra fused.
Like all Cychrines, Sphaeroderus are specialized predators of land mollusks
They are also known to feed on caterpillars(2)
Works Cited
1.Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico
Bousquet Y. 2012. ZooKeys 245: 1–1722.
2.A natural history of the ground-beetles (Coleoptera: Carabidae) of America north of Mexico.
Larochelle and Larivière. 2003. Pensoft Publishers, Bulgaria. 584 pp.