The larvae feed on various herbaceous plants, including Potentilla, Thymus, Andromeda polifolia and possibly Empetrum nigrum, Rubus chamaemorus and Vaccinium uliginosum.
Empetrum nigrum, the black crowberry, a plant species native to most northern areas of the northern hemisphere
In Labrador, where the name "blackberry" is used, the smoke of the burning stems and leaves is used to smoke fish, notably Salmon, Sea Trout and Arctic Char.
But Itämies and Várkonyi reported (in 1997) the larvae on Empetrum nigrum ssp. hermaphroditum.
The larva feed on the leaves of various low-growing plants, including Betula nana and Empetrum nigrum.
The sand dunes are of various stages of evolution and contain marram grass (Ammophila arenaria), red fescue, (Festuca rubra), crowberry, (Empetrum nigrum), the cross-leaved heath (Erica tetralix), common sedge, (Carex nigra), marsh pennywort (Hydrocotyle vulgaris) and the invasive creeping willow (Salix repens ssp. argentea).
The larvae mainly feed on Empetrum nigrum, but have also been recorded from other plants, including Calluna
Empetrum nigrum | Empetrum rubrum | Verbascum nigrum | Veratrum nigrum | Idiosoma nigrum | ''A. adiantum-nigrum'' | Allium nigrum |