Boloria polaris, the Polaris fritillary, is a butterfly of the Nymphalidae family. It is found in northernmost Scandinavia, North America (in northeastern Alaska and northern Canada) and in Greenland. It is also found in northeastern Russia. It is one of only six butterfly species found on Canada's Ellesmere Island.
The wingspan is 32–38 mm. The butterfly flies from June to August depending on the location.
The following subspecies are recognized:
- Boloria polaris erda (central and eastern Siberia)
- Boloria polaris kurentzovi (Chukotka Autonomous Okrug and Wrangel island in Siberia)
- Boloria polaris polaris (northern Scandinavia, Greenland and North America)
- Butterflies of Europe
- Butterflies and Moths of North America
- Butterflies of Canada
- Butterflies of Norway
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