Polyommatus erotides is a butterfly found in the East Palearctic (Saur, Altai, Siberia, Transbaikalia, Mongolia) that belongs to the blues family.

Taxonomy Formerly a subspecies of Polyommatus eros.

Description from Seitz

erotides Stgr. (80 d), from the mountains of Southern Siberia, is a large, blue-green male form, with broad black distal margin to the forewing, into which the deep black veins merge.Seitz, A. ed. Band 1: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen Tagfalter, 1909, 379 Seiten, mit 89 kolorierten Tafeln (3470 Figuren)

Biology The larva feeds on Fabaceae.

See also List of butterflies of Russia

References