A very rare and local species in Belgium, mainly known from the south of the country. Recently (2008) a population was discovered in the south of West-Vlaanderen were it is locally common.

The larva feeds on lichens and algae on rocks, but also reportedly on Lotus corniculatus and related plants. Hibernates as a  larva and pupates in a cocoon under a stone or in a rock crevice.

The adults fly usually in one, sometimes two generations a year; from late June till late September. They come to light soon after dark and occasionally to sugar.