A rather common, but local species throughout Belgium.

The monophagous larva lives on Acer platanoides. It makes a fairly large and rounded mine on the underside of a leaf.  The pupa of the second generation hibernates.

The adults fly in two generations a year: in May and in August.

ID mine: underside of the leaf, between two veins but not necessarily touching both and rarely situated at the leaf edge. The lower epidermis appears smooth or with several small creases and becomes whitish. Often there are several mines in a leaf. 

ID imago: one of three similar Acer-feeding Phyllonorycters; this species is separable from Ph. acerifoliella by the first chevron is only bent or obtusely angulate, not constricted at middle. In the basal area there are 3 slightly oblique blackish brown lines; the dorsal line is about midway towards the 2 opposite costal lines.