Food Plant: Alnus glutinosa (Alder) and Alnus cordata (Italian Alder)

Mine: Univoltine: autumn.

Pupa: Inside mine in a disc shaped cocoon.

Notes: In the winter it enters a prepupal stage (as illustrated), losing its pigmentation.

Data: 20.iii.2005, Fleet, Hants,VC12

Image:© Rob Edmunds