Life cycle
Mines: June-July, September-November. Adults May, August.
Larval foodplants
Elm species.
History
The first for Dumfries & Galloway was of leaf-mines found at Langholm, Dumfriesshire, on 11th October 1952 by E. C. Pelham-Clinton and bred on, emerging 6th February 1953, while the first for Kirkcudbrightshire was found at an unknown site by a person unknown prior to 1975 (MOGBI data), with the Wigtownshire first being of leaf-mines found at Glen Dunskey on 22nd September 2013.