Identifying features
Wingspan 28–32 mm. The ground colour of the wings is dark brown, but the wings are covered in numerous light hairs, giving them a greyish appearance. Both pairs of wings have distinct white spots. As with other skippers, the body is relatively thick, and the antennae are curved at the tips. It exhibits a very rapid flight, just above the ground.
Similar species
Can be easily distinguished from Alpine Grizzled Skipper and large grizzled skipper by the white spots on its hindwing; Grizzled skipper is smaller, darker, and does not fly on peat bogs.
Distribution
Distinctly eastern distribution in Norway. Found on mires in the lowlands of Eastern Norway, and extending into the mountains; it is only found west of the watershed on Hardangervidda. Widely distributed in the interior of Trøndelag, not found in Nordland, but reappears in the interior of Troms and is widespread in Finnmark, except for the westernmost coastal areas. Approximately 340 findings according to the publication from 2025; the population is considered stable in Norway.
Biology
The larvae live on mulberries. The document indicates that the larvae’s food in the initial period should be dwarf birch, and then mulberries. The development is apparently biennial, and the species should occur most frequently in years with an odd number.