Balkan fritillary

The Balkan fritillary (Boloria Mesa Graeca) is a butterfly in the family Nymphalidae found in the southern Central Alps and the mid- to high-altitude Balkans. The larva feeds on Viola species.

The orange upperside of the wings has a brown basal suffusion adorned with various marks of brown color, submarginal round spots and lines forming festoons. The hindwing forms an angle at its anterior edge. The underside of the forewings is identical, that of the hindwings presents silver designs, a line of small circles and greenish marbling in the female.