Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Nokomis Fritillary
Speyeria nokomis (W.H. Edwards, 1862)

Family: Nymphalidae
Subfamily: Heliconiinae
Identification: Upperside of male brownish orange with darkened wing bases and dark markings. Submarginal chevrons do not touch the marginal line. Upperside of female black; outer half of wing with cream-colored spots. Both sexes have hindwing below with black-bordered silver spots.
Wing Span: 2 1/2 - 3 1/8 inches (6.3 - 7.9 cm).
Life History: Males patrol for receptive females, who walk on the ground to lay single eggs near host plants. Unfed, first-stage caterpillars hibernate; in the spring they feed on leaves of the host.
Flight: One brood from late July-September.
Caterpillar Hosts: Viola nephrophylla.
Adult Food: Flower nectar, including that from thistles.
Habitat: Moist meadows, seeps, marshes, streamsides.
Range: East-central California, Nevada, Utah, and Colorado south through Arizona and New Mexico into Mexico.
Conservation: Several populations are lost due to draining of habitat or development. All remaining populations 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: Protect and manage habitat. Moderate grazing is compatible and may be necessary.
Comments: NULL