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Species Page - Trechus chalybeus
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scientific name    Trechus chalybeus    

habitat
Often among dead leaves under Salix and Alnus; open grassland; near snow patches.

seasonality
This species has been collected in July and August.

identification
Member of the chalybeus group, with large head and short elytra, each eltron with at least 4 complete, punctate striae, elytra more or less iridescent. Piceous, outer margin of elytyra and oftern entire prothorax, brown, appendages paler but antenae more or less infuscated as a rule. Microsculpture on disc of prothorax open, forming evident meshes, slightly iridescent. Hind angles of prothorax more or less denticulate. Outer elytral striae obliterating, 5th more or less interrupted. Length 3.7-4.8 mm.

life history
May overwinter in both larval and adult stages.

conservation
Common.

diet info
Both larvae and adults are predatory.

range
This species is found in western United States and Canada. In Alberta this species is found from central Alberta south in the western regions.

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=2978



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References (2)
Specimen Info
There are 451 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (451)

 

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