Ceanothus-feeder
Guides
Celastrina echo
Echo Azure, Western Azure
Celastrina echo is a small blue butterfly in the family Lycaenidae, native to western North America. Its taxonomic status was elevated from subspecies of C. ladon to full species in 2001. The species exhibits complex associations with ants throughout its larval development and displays considerable variation in brood number depending on local climate conditions.
Erynnis pacuvius
Pacuvius Duskywing, Dyar's Duskywing, Buckthorn Duskywing
Erynnis pacuvius is a skipper butterfly in the family Hesperiidae, found in western North America. The species has a wingspan of 29–33 mm and exhibits a flight period between June and July in northern populations, with a second generation occurring in southern portions of its range. Larvae feed on Ceanothus species.