|scientific name Calosoma calidum |
This species is pronouncedly terricolous and inhabits open, rather dry fields with low vegetation.
Adults have been collected in June and July.
This species, in the subgenus Chrysostigma, is black, or dark piceous, sometimes with faint bronzy lustre, elytral foveae brilliantly golden coppery or green. Prothorax broad, with evenly curved, widely reflexed sides, and strongly rounded hind angles. Elytra with margin serrate behind the shoulder, striae deep, intervals with strongly engraved transverse lines, dorsal foveae large, rounded, somewhat varying in size, but at least in part broader than the corresponding interval. Length 19 to 25 mm.
The beetles are active until the beginning of August and then overwinter.
Both larvae and adults are voracious predators on Bombycimorph caterpillars.
This species is wide ranging in both United States and Canada. In Alberta this species is found only in a few central localities.
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