Last modified: Nov. 7, 2024, 5:16 p.m.
A rare species throughout Belgium.
Native
The larva is yellow.
The cocoon is reddish brown.
The larva makes a leaf mine on the food plant. The mine starts in the leaf blade and the initial corridor is filled with red-brown frass, follows the leaf margin, and then expands abruptly into a blotch with the frass black colored. 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.