Entomology Collection TitleImage Bugs Pinned
Species Page - Lycia ursaria
Lycia ursaria ->species page

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

scientific name    Lycia ursaria    

common name     The Bear

Mixedwood and deciduous forests and woodlands.

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

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.

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).

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

quick link

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)

Related Species Info
Display Hierarchy
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


Logo Department of Museums and Collections ServicesLogo University of Alberta