|scientific name Calosoma frigidum |
This species may occur in all kinds of habitats, but apparently prefers open woodland.
Adults have been collected in May and June.
This species, in the subgenus Calosoma, is characterized by the small, short prothorax which, compared with the elytra, is pronouncedly narrow. Black, often with faint bronze lustre, sides of prothorax and elytral foveae and side margins usually metallic (green, golden or purple); ventral side with green or purple reflection; legs black. Length 17 to 27 mm.
Overwintering occurs in the adult stage. Adults readily climb trees in seach of caterpillars.
Predatory, particularly in the larval stage, specializing upon caterpillars and pupae of Lepidoptera.
This species is wide ranging in both United States and Canada. In Alberta this species has been collected in the central regions.
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