A very rare and local xerotherm species.
larva feed on different species of Verbascum. The olderlarvae feed from under a web and the younger ones bore into leaf-stalks or stems.
adults fly in two generations a year: onwards from May towards early October.
Liège, Liège-coteaux de la Citadelle, 14 March
larva on Verbascum
sp. (Photo © Jean-Yves Baugnée)