A local and rare species in Belgium, but probably underrecorded.

The young larva mines the leaf of Artemisia vulgaris. The 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. 

The adults have been observed from June till August. They are active in late afternoon sunshine and later come occasionally to light.