Life cycle
Larvae present July-August, September-November. Adults fly May-June, July-September.
Larval foodplants
Goat Willow, Grey Willow, Eared Willow, occasionally Creeping Willow.
History
The first for Dumfries & Galloway was of a leaf-mine found at Cairnryan, Wigtownshire, on 6th October 1963 by E. C. Pelham-Clinton, while the first for Kirkcudbrightshire was found at an unknown site by a person unknown prior to 1985 (BRC/MOGBI data), with the Dumfriesshire first being netted at Holmhead on Lochar Moss on 19th April 2014.