Callophrys johnsoni
Callophrys johnsoni, the Johnson's hairstreak, is a butterfly of the family Lycaenidae. It is found in North America from British Columbia south to central California. The habitat consists of coniferous forests.
The wingspan is 25–30 mm. Adults are on wing from May to July in one generation per year.
The larvae are specialists that feed exclusively on dwarf mistletoes, including Arceuthobium campylopodum and A. tsugense.