Species Detail

Freija Fritillary

Boloria freija (Thunberg, 1791)

JPG -- species photo

Attributes of Boloria freija


Family: Brush-footed Butterflies (Nymphalidae)

Subfamily: Longwings (Heliconiinae)

Identification: Upperside tawny to orange-brown; arctic butterflies darker. Underside tawny with characteristic black zigzag median line; arrowhead-shaped white spots in center of wing at outer margin.

Life history: Males patrol for females in open areas during warm hours. Females lay eggs on or near the host plants. Caterpillars feed on leaves; fourth-stage caterpillars overwinter.

Flight: One brood from late May to mid-July.

Wing span: 1 3/8 - 1 5/8 inches (3/5 - 4.1 cm).

Caterpillar hosts: Dwarf bilberry (Vaccinium caespitosum) and other plants in the heath family (Ericaceae).

Adult food: Flower nectar.

Habitat: Open bogs, taiga, tundra, edges of open black spruce bogs, pine forests.

Range: Holarctic. Much of Alaska and Canada; south through the Rocky Mountains to New Mexico; east to the Great Lakes area.

Conservation: Not usually required.

NatureServe Global Status: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.

Management needs: None reported.

Documented Records for Boloria freija



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