Last modified: May 6, 2022, 8:35 a.m.
A rare species in Belgium, confined to the southern provinces. Nowadays, all observations come from the limestone area, where in some places it can be numerous.
Hibernates as larva and pupates in a cocoon on the ground.
The adults are easily disturbed by day. They are active from dusk onwards and later come to light.
The adults fly in one generation a year: from late June to end of July.
The larva lives on various herbaceous plants like Helianthemum mummularium and also on lichens.