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Species Page - Lycia ursaria
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scientific name    Lycia ursaria    

common name     The Bear

habitat
Mixedwood and deciduous forests and woodlands.

seasonality
An early spring flier, peaking in late April to late May.

identification
For a geometrid, this species has an unusually stout and hairy body (hence the name), and together with the elongate wing shape, it is more reminiscent of a species of Gluphisia (Notodontidae); however, it lacks the tan scales of Gluphisia. More uniformly grey overall than Biston betularia, with less contrasting transverse black lines. Lycia rachelae is not mottled, and has orange-brown scales along the forewing costa (absent in ursaria). Female fully winged, but apparently collected only rarely.

life history
The eggs are laid in clusters of 150 to 200 in early spring before bud break, and hatch in about three weeks. The purplish-brown larvae are twig mimics, and develop slowly throughout the spring and summer, not pupating until mid July to early August (Prentice 1963, McGuffin 1977, Wagner et al. 2001). Adults come to light. This is one of the first species to emerge in the spring, along with Feralia, Orthosia and Gluphisia species.

conservation
Not of concern.

diet info
Larvae feed on a variety of deciduous trees and shrubs such as dogwood (Cornus stolonifera), white birch (Betula papyrifera), willows (Salix spp.), alders (Alnus spp.), Vaccinium spp. and Prunus spp. (McGuffin 1977).

range
Across southern Canada, from northern Alberta south to New Brunswick, Colorado and Washington (McGuffin 1977).

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=4298



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Related Species Info
Authorship
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References (3)
Specimen Info
There are 80 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (80)
Related Links
Moth Photographers Group

 

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