Identification
Small sized (7.2-8.1 mm) with black body; appendages with a faint bronzy lustre; prothorax with sinuate sides before the rectangular hind angles; frons with isodiametric microsculpture; elytra with two foveae on the seventh interval; antennal scape elongate, almost as long as the combined lengths of the second through fourth antennomeres.
Range
West coastal north to Kodiak Island, south to northwestern California, east of the coast region only in southern British Columbia.
Natural History
Found in moist areas from above sea level to just below treeline on mountain peaks. On the Queen Charlotte islands, adults and larvae live in proximity of streams, ponds, lakes, bogs, marshes or small seeps on moist, organic substate. Adults are macropterous and probably capable of short range flight.
