|scientific name Elaphrus purpurans |
Usually on silt near the banks of rivers, some distance from the water, where the surface is dry.
Adults have been collected in May, June, August and October.
Black, upper surface dark bronze, sometimes with very slight greenish tinge, seldom purplish. Legs with viridescent lustre, femora and tibiae testaceous with dark tips; sometimes femora darkend along the entire narrow anterior margin, but their dorsal side always more or less pale even in apical half. Entire upper surface with dense, fine punctation. Head without central fovea. Male with three dilated protarsal segments. Length 6.3-6.8 mm.
No information available.
Both larvae and adults are predatory.
This species is found in western United States and Canada. In Alberta this species is found in the central third and one isolated locality further north near the B.C. border.
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