local and rare species in Belgium, but probably underrecorded.
young larva mines the leaf of Artemisia vulgaris.
initial mine is a very thin corridor with a central reddish brown frass
line. Later, it feeds externally and creates small fleck mines or
windows, which is vey obvious and typical for the species.
adults have been observed from June till August. They
are active in late afternoon sunshine and later come occasionally to
Hainaut, Laplaigne, 09 September 2007.
windows on Artemisia
(Photo © Chris Snyers)