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Species Page - Clostera brucei
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scientific name    Clostera brucei    

common name     Bruce's Chocolate-tip

habitat
Mature deciduous and mixedwood forest.

seasonality
Adults are on the wing from May through early July.

identification
A small (2.5-3.0 cm wingspan) dark grey-brown moth, darker and less contrastingly marked than the other Clostera species. It is most easily confused with small, dark specimens of C. apicalis. C. apicalis hase rusty-red or dark orange along the upper section of the postmedian line on the forewing; this is greatly reduced or absent in brucei. Clostera strigosa is larger with pale yellow mottling in the apical area, and C. albosigma has the dark terminal part of the forewing sharply divided from the remainder of the wing. Male antennae bipectinate; sexes similar.

life history
The adults are nocturnal and come to light. The larvae are reported to be both solitary and gregarious leaf-folding defoliators. There is a single brood each year.

conservation
Uncommon to locally common and widespread; no concerns.

diet info
No specific Alberta data; elsewhere in Canada (including Alberta) Trembling aspen (Populus tremuloides), willow (Salix sp.) and Balsam poplar (Populus balsamifera).

range
Across southern Canada, from Quebec to coastal British Columbia, north to Yukon and south to New Jersey and California. In Alberta found mainly in the southern Boreal forest and foothills areas, but also present in the aspen parklands.

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=2147



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References (3)
Specimen Info
There are 104 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (104)
Related Links
Moth Photographers Group

 

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