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

National Moth Week photos of insects and people. Here's how to add your images.

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

Photos of insects and people from the 2011 gathering in Iowa


Tribe Helluonini - Flat-horned Ground Beetles

Helluomorphoides sp. - Helluomorphoides ferrugineus Ground Beetle - Helluomorphoides nigripennis Helluomorphoides? the antennae look wild! - Helluomorphoides Helluomorphoides Small brown beetle - Helluomorphoides Helluomorphoides - Flat-horned Ground Beetle - Helluomorphoides Helluomorphoides? - Helluomorphoides Flat-horned ground beetle - Helluomorphoides
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 Harpalitae
Tribe Helluonini (Flat-horned Ground Beetles)
8 spp. of a single genus in our area, >160 spp. in 25 genera of two subtribes worldwide(1)
Antennomeres flattened(2)
most zoogeogr. regions but marginal in the Holarctica(1)
Works Cited
1.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.
2.Beetles: A Field Guide to the Beetles of North America
Richard E. White. 1998. Houghton Mifflin.