Lupine Blue Butterfly (Male)

Plebejus lupini (Boisduval, 1869). This guy is tiny, wings only about a half-inch across. It doesn't look like it in the picture, but he appears periwinkle blue while flying. Very pretty. You can see a little of the blue better in the picture-in-picture.

I spotted him in Deukmejian Wilderness Park, where we often take our dog. My favorite butterfly site says Lupine Blues' habitat is: "Alpine slopes, mountain meadows and slopes, prairies, rocky outcrops, chaparral, and sagebrush." Sounds like Deukmejian to me!