Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Spring 2021 gathering in Louisiana, April 28-May 2. Here's how to add your images.

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama


Genus Sphaeroderus - Small Snail Eating Beetles

slug eater - Sphaeroderus stenostomus slug eater - Sphaeroderus stenostomus Sphaeroderus canadensis canadensis Chaudoir - Sphaeroderus canadensis - male Ground Beetle ??? - Sphaeroderus stenostomus Sphaeroderus stenostomus Sphaeroderus schaumii Sphaeroderus bicarinatus LeConte - Sphaeroderus bicarinatus - female Sphaeroderus canadensis Chaudoir - Sphaeroderus canadensis - female
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
6 spp. (with several sspp.), all in our area(1)
ne. NA to n. GA & e. SK(1) Also known from Florida and Arkansas.
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.