Coleoptera: Bradycellus nigrinus

Bradycellus nigrinus Dejean 1829

Carabidae, Coleoptera, Insecta, Arthropoda, Animalia

Matthew Denton, The Evergreen State College, Olympia, WA 98505 USA.

01 April 1997


Identification

This is a small species (5.2-5.7 mm) with a dark brown to black body and infuscated appendages. Clypeo-ocular line incomplete, not reaching eye; third antennal segment pubescent in outer half; prothorax with strong lateral basal bead; basal foveae linear; sides of the prothorax sinuate to almost straight before the sharp hind-angles; elytra with abbreviated, sometimes rudimentary scutellar striae; elytra faintly iridescent, with an evident mesh-like microsculpture; tarsi glabrous on dorsum, terminal segment setose underneath.

Range

Transamerican in distribution, found from coastal British Columbia to Newfoundland; Kodiak Island south to California and New Mexico.

Natural History

Occurs in open meadows, either on moist ground with vegetation of Carex and Juncus, or drier Pacific coast grassland.


References

Lindroth, C. H. 1961-1969. The ground beetles (Carabidae excl. Cicindelinae) of Canada and Alaska. Parts 1-6. Opuscula Entomologica xlviii + 1192 pp.


For information about this page: John T. Longino longinoj@evergreen.edu

Last modified: 04/06/97