Common in fens, marshes and freshwater margins throughout the British Isles, but not in northern Scotland. Fairly widely distributed across Hampshire but perhaps under-recorded, and decidedly uncommon on the Isle of Wight. Wingspan 16-22 mm. Rather difficult to assign to a family, perhaps, but once known, the species is easy enough to identify. Larva feeds within flowering spikes of Bulrush and Lesser Bulrush.
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