Last modified: Oct. 9, 2020, 11:40 a.m.
A very rare species in Belgium, though recorded from all provinces.
The egg is deposited on either surface of the leaf, near the leaf margin.
Larvae in June–July.
The mine starts as a gallery mostly following the leaf margin; later it widens into an elongated blotch filled with brown frass.
See also bladmineerders.be
The species hibernates in the pupal stage.
The species has only one generation a year, larvae are to be found in June and July. Adults are on the wing in May.