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Vidler's Alpine (Erebia vidleri Elwes)
Wing span: 1 5/8 - 1 7/8 inches (4.1 - 4.8 cm).
Identification: Upperside is brown-black; orange band across both wings surrounds 3 eyespots on the forewing, 1-2 eyespots on the hindwing. Underside of forewing is the same as the upperside; hindwing median band is indistinct to well-defined ash gray.
Life history: Not reported.
Flight: One brood from July-August.
Caterpillar hosts: Probably grasses.
Adult food: Flower nectar.
Habitat: High mountain meadows, ridges, and rockslides.
Range: High mountains of British Columbia south to the Olympic and north Cascade Mountains of Washington.
Conservation: Not usually required.
The Nature Conservancy Global Rank: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.
Management needs: None reported.
References:
Scott, J. A. 1986. The butterflies of North America. Stanford University Press,
Stanford, Calif. 583 pages, 64 color plates.
Tilden, J. W. 1986. A field guide to western butterflies. Houghton-Mifflin Co.,
Boston, Mass. 370 pages, 23 color plates.
Author: Jane M. Struttmann
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 1999 -
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