Explanation of Names
At
Words by William Whitaker, "pili" translates to "hair", while "cornis" translates to "tusk/claw" or "bow". This is most likely referring to this beetle's distinctive antennea.
Identification
Black, usually with pronounced, often greenish or bluish lustre, elytra commonly more or less rufinistic, tibiae, mandibles and palpi more or less pale. Prothorx with sides less, or not at all, sinuate posteriorly, hind angles obtuse or rounded. Elytra with three foveae on 4th interval (exceptionally with one on 7th interval of one elytron, but not both).
Range
This species is found in northern United States, and across Canada. In Alberta this species is recorder from most of the province.
Habitat
Hygrophilous, usually at fresh, often standing water, on rich soil, more or less shaded.
Food
Both larvae and adults are predatory.
Life Cycle
Overwinters in the adult stage.
Internet References
The
University of Alberta has info and a picture of a pinned specimen.
