Wingspan 9 or 10 mm. Adult moth has an ochreous or fawn tinge to the pale markings and lack of definition in the pattern. The larva creates a mine on the leaves of Beech. The early mine is a blotch with upper epidermis turning brown. Then a fold at the leaf edge or tip of the leaf.

Adult Leafmine

Wherever Beech is present.

Leaf mine may be encountered between July and September.

Larva mines leaves of Beech, subsequently living within a leaf-fold, over-wintering as a pupa in a cocoon.

A rather local species in Britain. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as local.

It appears to be uncommon in Leicestershire and Rutland, where there are few records. L&R Moth Group status = D (rare or rarely recorded).

http://www.leafmines.co.uk/html/Lepidoptera/P.fagivora.htm

https://bladmineerders.nl/parasites/animalia/arthropoda/insecta/lepidoptera/ditrysia/gracillarioidea/gracillariidae/gracillariinae/parornix/parornix-fagivora/