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Species Page - Trachypachus holmbergi
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scientific name    Trachypachus holmbergi    

habitat
A xerophilus species, on open or slightly shaded ground, usually moraine, with sparse vegetation.

seasonality
Adults have benn collected in April to June.

identification
This is the only species of Trachypachus found in Alberta. The antennae only have scattered stiff setae, lacking dense, depressed pubescence on the outer seven antennomeres. The metacoxae are extended laterally to meet the margins of elytra. Black or very dark piceous, tibiae usually brownish, upper surface shiny brass. Prothorax with three lateral setigerous punctures each side; anterior and posterior margins fringed with short setae. Elytra with varying number (3-12) of irregular rows of punctures, effacing at apex. Length 3.8 to 5.8 mm.

life history
This species overwinters in the adult stage.

conservation
Common.

diet info
Both larvae and adults are predatory.

range
This species is found in Alaska and western United States and in western Canada, including the north. In Alberta this species is recorded from the Edmonton area and in the extreme north east corner of the provinve.

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=1540



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References (2)
Specimen Info
There are 37 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (37)

 

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