Boloria eunomia - Bog Fritillary

Boloria-eunomia-bog-fritillary | PTKbutterflies
Boloria-eunomia-bog-fritillary | PTKbutterflies
Boloria-eunomia-bog-fritillary | PTKbutterflies

I must have found this one at it's most South-Western foothold, by a small overgrown stream where it was flying alongside Lesser Marbled cousins. The site was very difficult to traverse and great care was taken not to damage it, hence less than ideal butterfly photographs were forthcoming. Great to see, especially as I had no prior knowledge of the site.