Male Great Purple Hairstreak, Atlides halesus corcorani, surely one our most exotic butterflies in California. Nectaring on Desert Lavendar in Plum Canyon, Anza-Borrego Desert State Park. October 3, 2005. Males have blue scaling on the ventral forewing, barely visible here, that females lack.

Female Great Purple Hairstreak from Arizona - Boyce Thompson Arboretum, September 25, 2007.