|scientific name Pterostichus melanarius |
Light forest, open meadows, cultivated land, waste dumps; urban areas, etc.
Adults usually collected in July and August.
Member of the melanarius group, (subgenus Omaseus). Deep black, the appendages in part dark piceous. At once recognized by the denticulate hind-angles of the prothorax; basal fovea is bistriate, with a more or less pronounced tubercle in the center; lateral carina is strong. Elytral striae moderately deep with rudimensts of punctures, intervals moderately convex. Length 12 to 19 mm.
Royal Alberta Museum page
Overwinters in the larval stage.
Both larvae and adults are predatory.
This introduced species is found across most of northern United States, and most of Canada. In Alberta the records are concentrated in the Edmonton area with only two records from Calgary
Kevin Floate (2015-11-26)
Also now large populations in Cypress Hills Provincial Park in localized areas.
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