local and rare species in Belgium, only known from the northern
part. Can be locally common in some brackish salt marshes and estuaries.
young larva mines the leaf of Aster tripolium , the
initial mine is in part of the layers of a leaf, later when it leaves,
it makes full depht shorter mines and sometimes creating windows. Pupation in a white
adults have been observed from June till August. They
are active in late afternoon sunshine and later come occasionally to light.
Antwerpen, Schoten, 26 July 2006.
(Photo © Adriaan Peeters)