Entomology Collection TitleImage Bugs Pinned
Species Page - Coenophila opacifrons
species list search results ->Coenophila opacifrons ->species page

E-mail this Page   
Print this Page   
Link to this Page   

scientific name    Coenophila opacifrons    

common name     Blueberry Dart

habitat
In Alberta widespread but local in the boreal forest and foothills regions; rare in the northern Aspen parklands.

identification
A medium-size (approx. 3.2-3.8 cm wingspan) purple-grey moth with reddish wine-red shading and tints on the forewings. Costa lighter grey, especially along the basal half. The orbicular and reniform are joined on their lower edge by a dark rusty or black line, which frequently also fills the space between the two spots. However, the extent and intensity of the dark shading around the orbicular is highly variable, and in many specimens is almost obsolete. Hindwings fuscous, shading darker on the outer half except for the paler fringe, and with a dark discal mark. Sexes similar except male antennae bipectinate, female simple. Very similar in appearance to some species of Xestia, but genitalia of both sexes very different. Adults and genitalia of both sexes are illustrated by Lafontaine (1998). The mature larva is about 3.5 cm long, pale grey to blackish with a dark brown reticulate pattern and submedian arcs. It is described in detail and illustrated in color by Lafontaine (1998: Pl.8 (21).

life history
Adults are nocturnal and come readily to light. There is a single annual brood, with adults usually in the latter half of July and early August, occasional specimens earlier and later. No Alberta larval hostplant data; elsewhere Leatherleaf (Cassandra calyculata), blueberry (Vaccinium spp.) and Sweet gale (Myrica gale). Leatherleaf is reported to be the preferred host (Hensel, in Lafontaine, 1998).

range
Labrador and Newfoundland, south to New Jersey; west across the Boreal forest to eastern British Columbia, south in the mountains to southern Montana. In addition to the localities plotted on the map, Bowman (1951) states it has also been collected in “Zone 15” (Peace River region).

notes
Although opacifrons is usually associated with peat bogs and fens, specimens occasionally turn up in other habitats, including a female that showed up in a blacklight trap in my backyard in Edmonton and a specimen that Charley Bird collected in the Buffalo Lake Conservation Area near Stettler. Until quite recently, opacifrons appeared in the literature as a subspecies of Palaearctic C. subrosea. To further confuse matters, it has appeared in the literature in the genera Semiophora, Graphiphora (Xestia), Anomogyna and Eugraphe! The specimen illustrated above is from Wagner Fen, near Edmonton.

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=6158



Comments (0)Add New Comment

Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.

Add New Comment (all fields are required)
Validation:

CLICK TO ENLARGE
Related Species Info
Authorship
Display Hierarchy
References (2)
Specimen Info
There are 45 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (45)
Related Links
Moth Photographers Group

 

Logo Department of Museums and Collections ServicesLogo University of Alberta