Common in bird nests throughout Britain and Ireland. In Hampshire common and widespread, but apparently very uncommon on the Isle of Wight. Wingspan 11-17 mm. Resembles T. semifulvella, but the head is not mottled with dark brown (MBGBI Vol 2). Larva feeds on detritus in bird nests.
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