common species throughout Belgium.
larva lives in the roots of Carduus species,
occasionally also in Cirsium. It hibernates
full-fed in a silken cocoon in the feeding places or in the soil.
Pupation takes place in May in the cocoon.
adults have been observed from mid May till the beginning of September
in one long annual generation. They are active at dusk and later come
Hainaut, Farciennes, 09 July 2008.
(Photo © Jean-Yves Baugnée)