Distribution; world
A circumpolar species. Across boreal Europe, eastwards to Russia and Siberia, arctic America and Greenland. In N. America, it stays north of the 60th parallel, except in a few places in Labrador, on the Hudson Bay and in Quebec, but always beyond the tree-line. It is also found in the islands islands: on Baffin and Ellesmere, and even on the far north of Greenland, i.e. well above the 80° N.
In continental Russia and Siberia, it is restricted to the coast of the Arctic Ocean. It is also present on Novaia Zemlia, Wrangel and some other Siberian islands (Berezin 1995).:
FI, NO, RU, SE, CA, GL, US
Conservation status; world
Conservation status: EU - RDB-VU (Nieto et al, 2014)