Last modified: July 9, 2019, 4:03 p.m.
Used to be a rare and local species, nowadays it's uncommon. In some area's in the provinces of Antwerp and Limburg, the species is locally common.
See also bladmineerders.be
When young, the larva mines mainly the leaves or the stem of its foodplant. It hibernates. Later it lives amongst spun leaves just below the surface of the water. Pupation in a white silk cocoon attached to the foodplant at or just below the water-level.
The adults are active at dusk and come to light.
One extended, or two difficult to separate, generations a year: from late April till early September.