Last modified: Oct. 9, 2020, 10:42 a.m.
A rather rare species in Belgium, though widespread.
Large blotch mines in the lower leaves, sometimes occupying the entire leaf. See also bladmineerders.be
The larva often change from one leaf to the other, causing large blotch mines. Pupation in an ochreous cocoon inside the final mine or on the ground.
The species hibernates as a young larva. The adults are active at night and come to light.
One generation a year: from June till late August.
Open woodland, waste ground, ruderal places, gardens.