Conservation Status
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Common.
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Cyclicity
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Only a few specimens of this species have been collected in May.
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Distribution
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This species is found throughout most of United States and Canada. In Alberta this species is recorded from central and southern regions.
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General Description
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Member of the integer group, with 3 dorsal punctures on elytra, the anterior adjacent to 3rd stria. Dark brown to piceous, never quite black, often with faintest metallic lustre, prosternum and elytral epipleura paler, mouthparts and legs pale, antennae (except base) and at least pro-femora often darkened. Elytron with 3 subhumeral foveae and 2 preapical punctures. Length 2.6-3.2 mm.
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Habitat
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Not strictly riparian, though occurring in the uppermost zone of river vanks.
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Trophic Strategy
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Both larvae and adults are predatory.
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