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Genus Helluomorphoides - Flat-horned Ground Beetles

Beetle - Helluomorphoides Helluomorphoides? the antennae look wild! - Helluomorphoides Carabid - Helluomorphoides Helluomorphoides Helluomorphoides? - Helluomorphoides Helluomorphoides latitarsis Helluomorphoides papago Ground beetle June 9 - Helluomorphoides nigripennis
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 Harpalinae
Supertribe Harpalitae
Tribe Helluonini (Flat-horned Ground Beetles)
Genus Helluomorphoides (Flat-horned Ground Beetles)
Synonyms and other taxonomic changes
revised in Ball (1956)(1)
Explanation of Names
Helluomorphoides Ball 1951
From genus Helluo Bonelli in which these species were originally placed. That from Latin helluo 'glutton'
Numbers
7 spp. in our area, 23 total(2)
Size
9-21 mm
Identification
Medium to large, rather setose; antennae flattened towards the apex (unique to Helluonini); elytra often short, do not cover abdomen
Range
ne. & central US to Argentina; 4 spp. (ferrugineus, praeustus, clairvillei, nigripennis) in e. US, a few more range into border states from Mexico(3)(4)
Food
some spp. prey on army ants(3)
Remarks
Come to lights(3)
Works Cited
1.Revision of North American species of genus Helluomorphoides
Ball G. 1956. Proc. Ent. Soc. Wash. 59: 67-91.
2.Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico
Bousquet Y. 2012. ZooKeys 245: 1–1722.
3.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.
4.Ground Beetles and Wrinkled Bark Beetles of South Carolina
Janet Ciegler. 2000. Clemson University.