Cyaniris semiargus (Rottemburg, 1775) (= Polyommatus semiargus) - Mazarine Blue.
Range: Morocco, the temperate Euroasia north to the forest-tundra zone.
ssp.: altaiana (Tutt, 1909); range: the mountains of South Siberia.
Males on Onorbychis arenaria.
Russia, West Siberia, NW Altai Mts., Ust'-Kan District, Bashchelakskii Range,
meadow steppe 1 km SSW of Keley village. 3th July 2005. O. Kosterin.