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Relict Fritillary (Boloria kriemhild [Strecker])
Wing span: 1 3/8 - 1 3/4 inches (3.5 - 4.5 cm).
Identification: Upperside bright orange-brown with narrow black markings. Underside yellow-orange; forewing with submarginal band of outward-pointing brown chevrons; hindwing with median band of irregular yellow spots outlined with brown.
Life history: Males patrol for females all day in moist meadows. Fourth-stage caterpillars overwinter.
Flight: One brood from mid-June to early August.
Caterpillar hosts: Violets.
Adult food: Flower nectar.
Habitat: Moist mountain meadows, forest openings and edges.
Range: Rocky Mountains in Montana, Idaho, Wyoming, and Utah.
Conservation: May be of conservation concern due to limited range and the intensive use of national forests.
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: Locations of populations on public lands should be inventoried.
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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