An uncommon species in Belgium.
larva makes a very long mine between two veins on the underside of a leaf of Alnus glutinosa.
Often several together between veins and extending from midrib
almost to leaf-edge. Pupation inside the mine.
adults fly during July and August and it's believed to have only one generation a year. They come to light.
Antwerpen, Ranst, 02 July 2006.
(Photo © Leo Janssen)