Last modified: April 23, 2019, 12:44 p.m.
A rare species throughout Belgium.
The yellow larva makes a leafmine on Crataegus or Mespilus. Mine starts in the leaf blade and the initial corridor filled with red-brown frass follows the leaf margin and then expanding abruptly into a blotch with the frass black coloured. Pupates in a reddish brown cocoon, spun on the surface of the ground.
The adults fly in one or perhaps two generations a year; during late May and June.
The larva lives on Crataegus or Mespilus.