Polyommatus (Plebicula) dorylas, the turquoise blue, is a butterfly of the family Lycaenidae. It is found in southern Europe, Asia Minor, the Ural Mountains, Caucasus and Transcaucasia. Its wingspan is 15–17 mm. The butterfly's common name comes from the dazzling bright blue colour of male's wings. The larvae feed on Anthyllis vulneraria (kidney vetch). The butterfly flies from May to September in two generations. Habitats include flowery meadows in rocky areas at 500–2000 m.