Weaver's Fritillary (Boloria dia)

Weaver's Fritillary (Boloria dia)

Observation - Weaver's Fritillary (Boloria dia). Description: Small fritillary found in high numbers around common area of grass and scrub in central Bulgaria. Help with ID would be much appreciated.

Small fritillary found in high numbers around common area of grass and scrub in central Bulgaria. Help with ID would be much appreciated.