Food Plant: Betula (Birch)

Mine: early Summer and early Autumn

Pupa: outside the mine

Notes: Formerly F.pusilla. The mine is a blotch on the upper side of the leaf. It starts by the midrib and extends towards the leaf edge. The larvae have four spots - the anterior spots being large, which distinguishes it from P.thomsoni. Vacated mines shown is on Betula sp.

Data: 08.ix.2013, Eigenbilzen, (Limburg),Belgium

Image:© Carina Van Steenwinkel