Recording method

Overwinters as an adult in evergreen trees such as Yew.  Comes to light.

Life cycle

Larvae present May-July, August-October, first in an irregular upper-surface mine, then in a blotch mine, then rolling a leaf downwards lengthways.  Adults June-August, September-April.

Larval foodplants

Alder species.

History

The first for Dumfries & Galloway was of a few larvae found on Alnus at “Motte” near Skaith, Wigtownshire, on 9th July 1982 by E. C. Pelham-Clinton, while he also found the first for Dumfriesshire, which was of larvae found on Alnus at Caerlaverock on 10th July 1982, with the Kirkcudbrightshire first being of larvae found at Wood of Cree on 25th June 2005.