Common in damp areas throughout much of Britain, south of the Moray Firth. In Hampshire and on the Isle of Wight usually recorded in small numbers in most years, with apparent population centres in the south-east and around Basingstoke. Wingspan 14-16 mm. The only wholly yellow-ochreous Mompha. Larva mines stems and leaves of Great Willowherb.
The abundance in each month is indicated as follows:
No records Very occasional Irregular Uncommon Off-peak, but not unusual Off-peak, but not unusual Main flight time