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Bradycellus
Bradycellus nigrinus
Carabidae overview
Key to genera
Bradycellus Overview
Genus Bradycellus, Erichson 1837
Identification:
A heterogeneous genus containing small species (2.8 - 6.8mm), usually bicolored and with no pubescence on the upper surface of the body. Penultimate labial palpomere bisetose anteriorly; mentum with distinct tooth on anterior margin medially; pronotum with basolateral setae absent; elytron without short scattered setae laterally or apically; the eight posterior most umbilicate setae on ninth interval not distinctly divided into two separate groups of four setae; legs short; first segment of meta-tarsus always shorter than second and third together; last tarsal segment with at least one pair of bristles underneath, except in lecontei and badipennis group.
Range:
Holarctic with a few species in the northern portion of the Neotropical region.
Natural History:
Thirty species found in North America. Most species are primarily herbivorous, inhabiting open country.
References:
Lindroth, C. H. 1961-1969. The ground beetles (Carabidae excl. Cicindelinae) of Canada and Alaska. Parts 1-6. Opuscula Entomologica xlviii + 1192 pp.
Last updated Wednesday, July 19, 2006, by Administrator
