Balkan fritillary

{{Short description|Species of butterfly}}

{{Expand French|topic=scitech|Nacré des Balkans|date=August 2018}}

{{Speciesbox

| image = Balkan fritillary (Boloria graeca balcanica) Bulgaria.jpg

| image_caption =

| image2 = Balkan fritillary (Boloria graeca balcanica) underside Bulgaria.jpg

| image2_caption = both at Yastrebets, Rila Mountains, Bulgaria

| status =

| taxon = Boloria graeca

| authority = (Staudinger, 1870)

| synonyms = Boloria (Boloria) graeca

}}

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.{{cite web |last1=Rowlings |first1=Matt |title=Boloria graeca on euroButterflies by Matt Rowlings |url=http://www.eurobutterflies.com/sp/graecaB.php |website=eurobutterflies.com |access-date=2 April 2023}} 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.{{cite web |last1=Raymond |first1=Bill |title=Identification Guide: Small Fritillaries - Boloria |url=http://www.european-butterflies.org.uk/downloads/Sm%20Frits%20Boloria-EBG%20guide_low.pdf |website=european-butterflies.org.uk |publisher=Butterfly Conservation |access-date=2 April 2023}}

Boloria graeca MHNT CUT 2013 3 22 N.D. de la Salette Dos.jpg|mounted specimen, dorsal side, France

Boloria graeca MHNT CUT 2013 3 22 N.D. de la Salette Ventre.jpg|mounted specimen, ventral side, France