Palos Verdes Blue (Glaucopsyche lygdamus palosverdesensis)

The Palos Verdes blue butterfly is a subspecies of silvery blue butterfly. It is one of the rarest butterflies native to the Palos Verdes Peninsula in Los Angeles County, California. The IUCN listed it as endangered in 1980 because of habitat destruction, climate change, and non-native plant invasion.