|scientific name Trechus chalybeus |
Often among dead leaves under Salix and Alnus; open grassland; near snow patches.
This species has been collected in July and August.
Member of the chalybeus group, with large head and short elytra, each eltron with at least 4 complete, punctate striae, elytra more or less iridescent. Piceous, outer margin of elytyra and oftern entire prothorax, brown, appendages paler but antenae more or less infuscated as a rule. Microsculpture on disc of prothorax open, forming evident meshes, slightly iridescent. Hind angles of prothorax more or less denticulate. Outer elytral striae obliterating, 5th more or less interrupted. Length 3.7-4.8 mm.
May overwinter in both larval and adult stages.
Both larvae and adults are predatory.
This species is found in western United States and Canada. In Alberta this species is found from central Alberta south in the western regions.
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