|scientific name Gehringia olympica |
Confined to the gravel banks of small brooks with clear, cold water.
Adults have been collected throughout July.
Small size (1.6 to 1.7 mm.) is the easiest character observed . Black or very dark piceous, antennae and legs slightly paler, rufescent. Antennae short, pubescent, except on basal segment. Entire upper surface with scattered setigerous punctures. Prothorax cordate. Elytra with deep sutural (and often faintlysuggested second and third) stria, otherwise with the sparse, setigerous punctures arranged in irregular longitudinal rows; apex truncate, exposing the last tergite. Length 1.6 to 1.7 mm.
Larvae present in June. Overwinters in the adult stage.
Both larvae and adults are predatory.
This species is found in northwestern United States and western Canada, including the north. In Alberta this species has been collected only in the extreme south west corner.
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