Arctostaphylos uva-ursi
The larvae feed on "Arctostaphylos alpinus" and "Arctostaphylos uva-ursi". The larvae mine the leaves of their host plant. The mine starts as a corridor. Later, the larva leaves the corridor and starts making a large full-depth blotch. The larva leaves the blotch and moves to a new leaf, connecting both leaves with silk. The larvae are a dull grey-green color with a shining black head. They can be found from September to May.