|scientific name Blethisa quadricollis |
This species prefers acid bogs and occurs in Shagnum covered with Oxycoccus at the border of pools.
All of the Alberta records are from June.
The largest species in the genus, at once recognized by the rounded hind angles of the prothorax. Black, usually with bronzy, brassy or golden, along the margins often bluish or greenish, lustre. Length 15.5-17.8 mm.
Overwinters in the adult stage.
Relatvely rare, due to local occurrences.
Both larvae and adults are predatory.
This species ranges across the norther United States and most of Canada. In Alberta the only records are from the central region.
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