Common throughout much of Britain. In Hampshire fairly frequent throughout, with notable populations in Pamber Forest and Botley Wood; distinctly scarce on the Isle of Wight, where not recorded since 1979. Wingspan 8-11 mm. Larva feeds within seed capsules of Germander Speedwell, subsequently feeding on the leaves, living within a movable case.
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