Common in rough meadows and on waste ground throughout the British Isles. In Hampshire and on the Isle of Wight widespread and often abundant in rough grassland, especially on the chalk and amongst thistles. Wingspan 17-24 mm. This species is readily distinguished by the pale yellow ground coloration and the reduced, ferruginous-brown markings of the forewing [Bradley]. Larva feeds within roots of various species of thistle.
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