Last modified: Jan. 9, 2023, 3:43 p.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.
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.
This species has only one generation a year, larvae are to be found in June and July.
Adults are on the wing in May.