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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