common species throughout Belgium. Can be locally very common and
become a pest on trees.
young larva mines the needles of Larix during the first two
instars. Later, it constructs a small case from part of a needle
from which it feeds on Larix needles and in which it hibernates.
adults fly from May till July.
Antwerpen, Ranst, 19 May 2004.
(Photo © Leo Janssen)