Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Johnson's Hairstreak
Callophrys johnsoni (Skinner, 1904)

Family: Lycaenidae
Subfamily: Theclinae
Identification: Upperside of males rusty brown, females more orange. Underside gray-brown, darker toward wing bases. Postmedian line is white bordered with black on the inside edge.
Wing Span: 1 1/4 - 1 3/8 inches (3.2 - 3.5 cm).
Life History: Eggs are laid on the host; caterpillars feed on all exposed parts of the plant. Chrysalids hibernate in the mistletoe mass.
Flight: One flight from May-July.
Caterpillar Hosts: Pine dwarf mistletoe (Arceuthobium campylopodum) which grows on conifers.
Adult Food: Flower nectar.
Habitat: Coniferous forests, especially old-growth.
Range: Very local and scarce. Pacific Slope mountains from British Columbia south to central California.
Conservation: All populations are worthy of conservation concern.
NCGR: G3 - Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range).
Management Needs: Maintain old-growth forests with this species\' habitat requirements.
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