Rather common in many areas of Belgium.

The larvae live gregariously in a slight web, on the leaves of Sedum telephium and related cultivars, possibly also on other plants. Pupation in a cocoon amongst leaf-litter or spun up under a flower-head of the foodplant.

The adults fly in two generations; from end of April till May, and again during July and August. In Belgium most specimens have been observed in July. They occasionally come to light.