Common in fens and marshes and by rivers and canals throughout much of the British Isles, extending into Scotland as far north as the southern Highlands (MBGBI Vol 3). In Hampshire, widespread and common, but not recorded from the Isle of Wight until one in 2021. Wingspan 10mm. Fairly distinctive, although frequently quite variable. Larva mines leaves of Reed Canary-grass and Common Reed.
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