Square-spotted blue butterfly (Euphilotes battoides) caterpillars feed only on wild buckwheat plants, while adult butterflies get by on nectar from various flowers including cryptantha and their host buckwheat.
The upper wing surface of males is flashy blue, while the female is brownish with perhaps some blue at the base of wings. On the underside, squarish chunks of black dot the bluish white background color and a sub-marginal band of orange lunules mark the hind wing. Wingspan is an inch at the largest.
Square-spotted blue butterfy
nectaring on white forget-me-not, May
Square-spotted blue butterfly