Leistus
Leistus ferruginosis
Carabidae overview
Key to genera
Identification:
Lateroventral margin of maxilla with several long finger like projections each with a long, stout spine inserted apically. Form and arrangement of spines and curticular extensions of the ventral aspect of the head and mouthparts form a distinctive basket like enclosure (collembola trap).
Range:
Holarctic.
Natural History:
Four species represented in North America, one of which is a European introduction. Springtails and other small insects and mites form the bulk of the adult and larval diet.
References:
Kavanaugh, D. H. 1992. Carabid beetles (Insecta: Coleoptera: Carabidae) of the Queen Charlotte Islands, British Columbia. Memoirs of the California Academy of Sciences Number 16. California Academy of Sciences, San Francisco, California, USA.
Lindroth, C. H. 1961-1969. The ground beetles (Carabidae excl. Cicindelinae) of Canada and Alaska. Parts 1-6. Opuscula Entomologica xlviii + 1192 pp.