The Cranberry Blue (Plebeius optilete)
is a butterfly
of the Lycaenidae
family. It is found in North Eastern Europe
, the Alps
, North Asia
and North Western North America
The length of the forewings is ca. 14 mm. The butterfly flies from June to August depending on the location.
The larvae feed on Vaccinium oxycoccos, Empetrum nigrum, Bilberry and other Cranberry and Empetrum species.