Alberta Fritillary Boloria alberta (W.H. Edwards, 1890) | Butterflies and Moths of North America

Family: Nymphalidae

Subfamily: Heliconiinae

Identification: Dull and dark. Males smoky orange; females smoky brown and pale orange; both with blurred markings.

Wing Span: 1 1/2 - 1 3/4 inches (3.8 - 4.5 cm).

Life History: Males patrol near the host plant, close to the ground on hillsides. Two years are required for development from egg to adult. First-stage caterpillars hibernate the first winter; older caterpillars the second winter.

Flight: One brood from late July-early August.

Caterpillar Hosts: Probably alpine avens (Dryas octopetala).

Adult Food: Flower nectar.

Habitat: Barren, windswept alpine ridges.

Range: Uncommon. British Columbia and Alberta south to northern Washington and northern Montana.

Conservation: Populations in the contiguous United States are extremely limited, occur on public lands, and should be conserved.

NCGR: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.

Management Needs: None reported.

Comments: NULL

Thank you!

We want to express our gratitude to all who showed their support by making a contribution this year. You can donate to support this project at any time.