rare species in Belgium.
larvae feed usually on Artemisia vulgaris, less frequently on A. campestris. Initially starts as a long gallery which follows a vein or the margin of the leaf and becoming an upper surface blotch. Pupation external in a dull ochreous cocoon spun on leaf litter.
adults fly in two generations a year; during May and August. They are active in late afternoon and later come to light.
Liège, Liège near Meuse, 21 October 2009.
typical orange-crimson final instar larva on Artemisia
(Photo © Jean-Yves Baugnée)