Phyllonorycter stettinensis is a moth of the family Gracillariidae. It is found from Scandinavia and Finland to the Pyrenees, Corsica, Italy and Bulgaria and from Great Britain to Russia.
The wingspan is 6.5-7.5 mm. There are two generations per year with adults on wing in May and again in August.[1]
The larvae feed on Alnus cordata, Alnus glutinosa and Alnus incana, mining the leaves of their host plant.[2]