Conservation Status
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Common.
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Cyclicity
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Adults have been collected in May and June.
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Distribution
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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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General Description
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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.
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Habitat
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This species may occur in all kinds of habitats, but apparently prefers open woodland.
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Life Cycle
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Overwintering occurs in the adult stage. Adults readily climb trees in seach of caterpillars.
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Trophic Strategy
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Predatory, particularly in the larval stage, specializing upon caterpillars and pupae of Lepidoptera.
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Calosoma frigidum
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Calosoma frigidum, also known as the cold-country caterpillar hunter,[1] is a species of ground beetle in the subfamily Carabinae.[2] It was first described by William Kirby in 1837.[2] Occurring throughout southern Canada and the United States, it is about 16mm to 27mm long and black, with rows of pits or dots along its elytra. These pits are an iridescent blue/green, and larger than the pits of many other Calosoma species. It can be found in wooded areas and is active at night, while hiding under debris by day.[1]
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Calosoma frigidum: Brief Summary
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Calosoma frigidum, also known as the cold-country caterpillar hunter, is a species of ground beetle in the subfamily Carabinae. It was first described by William Kirby in 1837. Occurring throughout southern Canada and the United States, it is about 16mm to 27mm long and black, with rows of pits or dots along its elytra. These pits are an iridescent blue/green, and larger than the pits of many other Calosoma species. It can be found in wooded areas and is active at night, while hiding under debris by day.
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