Conservation Status
由University of Alberta Museums提供
Rare.
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- cc-by-nc
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- University of Alberta Museums
Cyclicity
由University of Alberta Museums提供
The two specimens were collected in June.
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- University of Alberta Museums
Distribution
由University of Alberta Museums提供
This species is found in the western coastland and adjacent mountains of United States and Canada. In Alberta the two specimens were taken northwest of Hinton.
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- cc-by-nc
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- University of Alberta Museums
General Description
由University of Alberta Museums提供
Member of the metallica group, characterized by: presence of a group of setae laterally at base of sternites 3-5, in addition to the 2 or more apical setae; elytra usually metallic, uneven intervals catenate, as a rule. Black, upper surface, notably elytra, with strong purplish or violaceous (in certain reflections greenish) lustre. Length 10.5 to 14.0 mm.
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- University of Alberta Museums
Habitat
由University of Alberta Museums提供
In the south found in the vicinity of running water; in Alaska found in the open country.
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- University of Alberta Museums
Life Cycle
由University of Alberta Museums提供
Overwinters both in adult and larval stage. Fully mature beetles in May, and teneral adults in July to the end of August (Alaska).
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- cc-by-nc
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- University of Alberta Museums
Trophic Strategy
由University of Alberta Museums提供
Both larvae and adults are predatory.
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- cc-by-nc
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- University of Alberta Museums
