Last modified: June 18, 2019, 9:02 a.m.
Mentioned for the first time in Belgium (LG) in 2016. The first record dates back from 2011, when J.-Y. Baugnée found some mines at Theux (LG).
The egg is deposited on the underside of the leaf usually close to a vein.
The mine of this species is very characteristic, the initial gallery is circling around the egg-site before making an irregular gallery with an interrupted frass line. The leaf turns red in the surroundings of the mine.
See also bladmineerders.be
The cocoon is white.
There are probably two generations a year in Belgium.