Other endemic fauna includes: the El Segundo blue butterfly in the LAX dunes; and the Palos Verdes Blue butterfly (Glaucopsyche lygdamus palosverdesensis), at only one site on the Palos Verdes Peninsula.
El Segundo Blue (Euphilotes battoides allyni) is a butterfly local to a small dune ecosystem in Southern California that used to be a community called Palisades del Rey, close to the Los Angeles International Airport (LAX).
Specifically it is a host plant to ten different Lepidoptera species, including the El Segundo blue butterfly and Smith's blue butterfly; moreover, in the case of the El Segundo blue, it is the only host plant used by that species in all of its life stages.
As a result, the El Segundo blue butterfly (Euphilotes battoides allyni) became an endangered species.
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