Observed
in many places in Belgium.
The
larva lives exclusively on Quercus
and has been found boring in young shoots, causing withered leaves and
occasionally swellings. Pupation normally in the shoot, occasionally
outside.
The
adults fly from late July till September. During the day they
rest on bark in crevices and later come to
light.
|
Belgium,
Antwerpen, Ranst, 28 July 2006.
(Photo © Leo Janssen)
|