|scientific name Pterostichus patruelis |
Eurytopic swamp species, especially prevalent in sphagnum bogs and eutrophic Carex mires.
Adutls collected in May to July, September and October.
Member of the patruelis group, (subgenus Argutor). Pure black, rather dull, mouthparts,base of inner antennal segments and at least tibiae piceous. Prothorax with very slight and short sinuation of sides before hind angles, which are about right; latero-basal fovea usually surrounded by scattered puntures. Elytral striae virtually impunctate. Prosternum smooth. Length 6 to 8 mm.
Overwinters in the adult stage.
Both larvae and adults are predatory.
This species is recorded from northern United States and most of Canada. In Alberta this species is
Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.