Species Detail

Atlantis Fritillary

Speyeria atlantis (W.H. Edwards, 1862)

JPG -- species photo

Attributes of Speyeria atlantis


Family: Brush-footed Butterflies (Nymphalidae)

Subfamily: Longwings (Heliconiinae)

Identification: Quite variable. Upperside orange-brown, darker at base, with black outer margins; male has black scales on veins. Underside of hindwing with basal disk chocolate brown or purplish, hindwing spots always silvered.

Life history: Males patrol during the day in forested areas or along streams. Eggs are laid singly on leaf litter near host plant. Unfed first-stage caterpillars overwinter, emerging in spring to feed on leaves.

Flight: One flight from mid-June to September.

Wing span: 2 - 2 3/4 inches (5 - 7 cm).

Caterpillar hosts: Violets.

Adult food: Flower nectar including that from common milkweed, mints, mountain laurel, crown vetch, burdock, boneset, ox-eye daisy, spiraea, and virgin\'s bower.

Habitat: Forest openings, upland pastures, bogs, meadows, and moist canyons.

Range: Maritime Provinces and northeast United States south to West Virginia, west through the Great Lakes region and southern Canada. South in Rocky Mountains to Colorado Front Range.

Conservation: Not usually of conservation concern.

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 Speyeria atlantis



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