Family Carabidae - Ground Beetles
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)
Synonyms and other taxonomic changes
(tiger beetles) used to be treated as a separate family; some workers treat Rhysodidae
as part of Carabidae. Classification in the Guide follows
By far the largest family of Adephaga and one of the largest insect families, with ~34,000 spp. in 23 subfamilies an 110 tribes worldwide and ~2,440 spp. (incl. 64 non-native spp.) in almost 200 genera (15 subfamilies, 50 tribes) in our area(1)(2)
Overview of the North American fauna: TO BE UPDATED
Taxa not yet in the guide: native (*), non-native (+); most names are linked to images available on other sites.
Tribe Bembidiini Amerizus
Tribe Pterostichini Abaris
Subtribe Harpalina Stenomorphus
Tribe Platynini Calathus
North American tribes and genera in(3)
Canada & Alaska in(4)
(profusely illustrated, covers most species across n. US)
Northeastern North America in(5)
(excels in definitions and illustrations of the morphologies used in the keys.
South Carolina in(6)
(also useful for much of the se. US)
Florida genera in(7)
(also keys to species of a few genera)
Pacific Northwest in(8)
(outdated; fine habitus drawings)
Northern North America(9)
, New World(10)
gives a good idea of Holarctic carabid diversity at a glance.
Larvae: Carabidae vs Staphylinidae:
If you have a larva in hand (well, with some magnification, probably), you can tell carabids from staphs because the former have 6-segmented legs and often 2 claws, while staphs have only 5-segmented legs and always only 1 claw. Also, nearly all carabids have the urgomphi solidly attached to segment 9 (no joint at the base), and at least some of the ones that do have them articulated basally have more than 2 segments, which staphs never have. Staphs almost always have the urogomphi articulated and they have only one or two segments; the ones with solid urogomphi are all little guys (including pselaphines) and quite different in form from carabid larvae. (Margaret Thayer, pers. comm. to Jim McClarin; also comment here
Adventive elements of Canadian fauna reviewed in(14)
A list of State/Provincial Records
not reflected in(1)
is maintained at the post-2012 Caraboid Forum/Registry(15)
where one can submit reliable new range extensions and newly published taxonomic changes that affect the North American fauna.
All terrestrial habitats
Most adults rapidly pursue their prey (other insects) at night. A few eat pollen, berries, and seeds. Most larvae are predators, but some are herbivores or parasitoids.
Darkling Beetles (Tenebrionidae
Other beetles superficially resembling carabids:
|4.||The ground-beetles (Carabidae, excl. Cicindelinae) of Canada and Alaska, parts 1—6|
C.H. Lindroth. 1961. Opuscula Entomologica Supplementa XX, XXIV, XXIX, XXXIII, XXXIV, XXXV.
|8.||The Beetles of the Pacific Northwest|
Hatch, M. 1953. University of Washington publications in biology, Volume 16. University of Washington Press, Seattle, Washington.
|14.||Synopsis of adventive species of Coleoptera (Insecta) recorded from Canada. Part 1: Carabidae|
Klimaszewski J., Langor D., Batista R., Duval J.-A., Majka C.G., Scudder G.G.E., Bousquet Y. 2012. Pensoft Series Faunistica #103, 96 pp.