very rare species in Belgium, only known from three provinces in the
south. First observation for our country was in 1999 (LX).
larva bores into the stem of Salix. Hibernates twice as larva.
adults fly from mid June till late July, mainly in uneven years. They are active
Namur, Dinant, ex larva June 2002.
(Photo © Theo Garrevoet)