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

Discussion, insects and people from the 2018 BugGuide 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

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Cyclotrachelus iuvenis

Cyclotrachelus iuvenis Freitag - Cyclotrachelus iuvenis - female Cyclotrachelus iuvenis - male Cyclotrachelus iuvenis - 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 Harpalinae
Supertribe Pterostichitae
Tribe Pterostichini (Woodland Ground Beetles)
Genus Cyclotrachelus
No Taxon (Subgenus Cyclotrachelus)
No Taxon (approximatus group)
Species iuvenis (Cyclotrachelus iuvenis)
Synonyms and other taxonomic changes
Evarthrus iuvenis Freitag 1969
Explanation of Names
Cyclotrachelus iuvenis (Freitag 1969)
Smaller than average for genus: 9.8-12.8mm ("total length", not ABL) (1)
See Freitag 1969(1)
WV, VA, and NC(2)
Mountain forests.
Works Cited
1.A revision of the species of the genus Evarthrus LeConte (Coleoptera: Carabidae)
R Freitag. 1969. Quaestiones Entomologicae, 5: 89-212.
2.Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico
Bousquet Y. 2012. ZooKeys 245: 1–1722.
3.A natural history of the ground-beetles (Coleoptera: Carabidae) of America north of Mexico.
Larochelle and Larivière. 2003. Pensoft Publishers, Bulgaria. 584 pp.