Life cycle

Mines: September-April, overwintering full-fed in a circular chamber in the centre of the mine.  Adults fly May-July.

Larval foodplants

Deciduous oak species; Sweet Chestnut.

History

The first for Dumfries & Galloway was of leaf-mines found at Langholm, Dumfriesshire, on 11th October 1952 by E. C. Pelham-Clinton, who found the first for Kirkcudbrightshire at Caulkerbush the next day, with the Wigtownshire first being found, also by Pelham-Clinton, at Kirkcowan on 6th October 1963.