Blue Copper (Lycaena heteronea [Boisduval])
Wing span: 1 1/8 - 1 3/8 inches (2.9 - 3.5 cm).
Identification: Upper surface of male bright blue, with darker veins; female dull blue to dark brown with numerous small dark spots. Underside of both sexes white to yellow-white; hindwing varies from having many to few black spots.
Life history: Most males patrol near host plants for females, but some perch. Females lay eggs singly on bracts under host leaves or umbels; eggs hatch the following spring. Young caterpillars feed on the underside of leaf; older ones eat all parts of the leaf.
Flight: One flight from May-August.
Caterpillar hosts: Wild buckwheat (Eriogonum species) in the buckwheat family (Polygonaceae).
Adult food: Nectar from flowers, including wild buckwheat.
Habitat: Brushy areas, open forest, mountain meadows, sagebrush; mostly at high elevations except for low elevations in central California.
Range: British Columbia south and east through southcentral California, northern Arizona, and northern New Mexico.
