Local in calcareous grassland, chalk downland, quarries, embankments, hedgerows, woodland rides and sea cliffs throughout much of southern England, rarely northwards to southern Scotland. In Hampshire and on the Isle of Wight rare but fairly regular on what remains of the chalk country, in all three vice-counties. Wingspan 26-30 mm. Unmistakable. Larva feeds on Lady's Bedstraw and Hedge Bedstraw, over-wintering as a pupa.
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