Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Thicket Hairstreak
Callophrys spinetorum (Hewitson, 1867)

Family: Lycaenidae
Subfamily: Theclinae
Identification: Tailed. Upperside steel-blue. Underside reddish brown; hindwing with white postmedian band which forms a W near tails.
Wing Span: 1 - 1 1/4 inches (2.5 - 3.2 cm).
Life History: Males perch in tall trees to find receptive females. Eggs are laid singly on mistletoe and caterpillars eat all external parts of it. Chrysalids hibernate in the mistletoe mass.
Flight: One flight from May-August.
Caterpillar Hosts: Dwarf mistletoes (Arceuthobium species), in the Loranthaceae family, which grow on juniper, pine, and fir trees.
Adult Food: Flower nectar.
Habitat: Pinyon-juniper forest, mixed woodland, coniferous forest.
Range: Usually local and rare. British Columbia southeast through Rocky Mountains to New Mexico and into Mexico; south through California into Baja California.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: Not reported.
Comments: NULL
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