(Thunberg, 1791)
Norse Grayling
Description:
The Norse Grayling occurs in both dry and wet biotopes, on marshes with a vegetation of mosses and grasses, at the edges of swampy habitats and streams, in low birch scrub, on sparse vegetation in clearings in birch woods, and on sunny, rocky slopes with low shrubs. The butterflies spend much of the day resting on tree trunks or on the ground with their wings closed and are so hardly noticeable. They are quick flyers and difficult to approach.
The female lays her eggs on various sedges and grasses. The egg takes two years to develop into a butterfly, and the caterpillars hibernate twice.
Habitat:
Alpine grasslands
Heath and shrub
Raised bogs
Mesophile grasslands
Humid grasslands
Similar species:
Oeneis bore
Oeneis glacialis