Lycaena cuprea

Lycaena cuprea, the lustrous copper, is a butterfly of the family Lycaenidae. It is found in the western mountains of North America.

The wingspan is 23–30 mm. Adults are on wing from mid-June to July or August. They feed on the nectar of Cirsium, Medicago sativa and Melilotus species.

The larvae feed on Oxyria digyna and Rumex species.

Subspecies

 * L. c. snowi (Edwards, 1881)
 * L. c. henryae (Cadbury, 1937)