A common species throughout Belgium where the food plants occurs.

The yellow larva makes a gallery which becomes a secundary blotch with a broad frass line. Eggs are laid on the roughleaved sallows like Salix aurita, S. caprea, S. cinerea, rarely on Myrica gale and very rarely on narrowleaved willows like Salix viminalis. Pupates in a yellowish brown cocoon. 

The adults fly in two generations a year: May-June, and July-August.