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Species Colliuris pensylvanica

Colliurus pensylvanicus - Colliuris pensylvanica Long-necked Ground Beetle - Colliuris pensylvanica Colliuris pensylvanica (Linnaeus) - Colliuris pensylvanica Colliuris pensylvanica Colliuris pensylvanica Long-necked Beetle - Colliuris pensylvanica Colliuris? - Colliuris pensylvanica Colliuris pensylvanica
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga
Family Carabidae (Ground Beetles)
Subfamily Harpalinae
Supertribe Harpalitae
Tribe Odacanthini
Genus Colliuris (Long-necked Ground Beetles)
No Taxon (subgenus Cosnania)
Species pensylvanica (Colliuris pensylvanica)
Other Common Names
Long-necked Ground Beetle
Synonyms and other taxonomic changes
Colliuris pensylvanica (Linnaeus)
Orig. Comb: Attelabus pensylvanicus Linnaeus 1767
7 spp. n. of Mex. (1)
6-8 mm (2)
Unique shape characterizes this genus, and they are likely ant mimics (3). Head and pronotum black, parts of head and pronotum reddish in the similar C. ludoviciana.

Det. Ben Gruver, 2024
e NA to AZ (AZ-FL-QC-ND) / Mex. / W. Indies - Map (4)(5)
in leaf litter, under logs/stones (3), on vegetation in wet areas (6)
mostly May-Sept (BG data)
possible aphid predator
comes to lights (2)
Works Cited
1.Review of the Nearctic, Mexican and West Indian (Greater Antilles) species of Colliuris Degeer (Col.: Carabidae: Odacanthini)
Y. Bousquet. 2010. Zootaxa 2529: 1–39.
2.The Beetles of Northeastern North America, Vol. 1 and 2.
Downie, N.M., and R.H. Arnett. 1996. The Sandhill Crane Press, Gainesville, FL.
3.A Manual of Common Beetles of Eastern North America
Dillon, Elizabeth S., and Dillon, Lawrence. 1961. Row, Peterson, and Company.
4.Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico
Bousquet Y. 2012. ZooKeys 245: 1–1722.
5.Global Biodiversity Information Facility (GBIF)
6.Peterson Field Guides: Beetles
Richard E. White. 1983. Houghton Mifflin Company.