Recording method

A long mine between two veins, or at the margin of a leaf causing it to fold downwards.  Mine is longer and narrower than P. messaniella.

Life cycle

Mines: July, September-October.  Adults fly April-June, July-November.

Larval foodplants

Beech.

History

The first for Dumfries & Galloway was of a leaf-mine found at Whithorn, Wigtownshire, on 12th October 1958 by E. C. Pelham-Clinton, who found the first for Kirkcudbrightshire at Palnackie on 29th May 1965, and the Dumfriesshire first on the Drumlanrig Estate on 18th May 1975.