Plebejus pylaon sephirus
The commoner of the zephyr blues with a wingspan of 28-34 mm, males are a light violet-blue with black markings while females are a dark brown, with distinct orange spots on the undersides. The zephyr lives in a number of different habitats, such as forest clearings, meadows, dry grassland, and stony mountains. Host plants are the legumes: hedgehog milk-vetch (Astragalus echinus) and narrow-leaved milk-vetch (A. angustifolius). This species flies from May through July, and is considered near threatened.
Attribution: Charlie Jackson (Wikipedia Creative Commons)