Last modified: Feb. 14, 2020, 6:23 p.m.
A very local and very rare species in Belgium, only found in the limestone area of NA.
Known only from a few locations.
The larva hibernates from September till April. The adults are active at dusk and later come to light or sugar.
The adults fly in two generations a year: in April-May and in July-early September.
The larva lives on Helianthemum nummularium.