Recording method

Comes to light.

Life cycle

Mines: July; October-June.  Adults: May-June, July-September.  “A Field Guide to the Smaller Moths of Great Britain and Ireland” gives adult flight times as July-August “in the north”.

Larval foodplants

Reed Canary-grass Phalaris arundinacea or Common Reed Phragmites australis.

History

The first for Scotland and Dumfries & Galloway was of a larva found on Phalaris at Moniaive, Dumfriesshire, on 5th June 1966 by E. C. Pelham-Clinton and bred on, who also found the first for Wigtownshire at Corsemalzie House Hotel, near Mochrum, on 28th June 1988, with the Kirkcudbrightshire first being of a leaf-mine found on Phalaris at Kenmure Holms SSSI on 22nd June 1996, also by Pelham-Clinton.