SeasonalityAdults collected late summer (no Alberta specimens available).
IdentificationMember of the amethystinus group, (subgenus Hypherpes). Deep black with mouth-parts, tarsi and outer parts of antennae somewhat paler. Prothorax strongly constricted at base with short linear latero-basal impression; hind-angles completely rounded and very obtuse. Elytra with narrow shoulders, no humeral tooth, striae deep, virtually impunctate, intervals convex. Length 9 to 11.5 mm.