Common in ponds, canals and other aquatic habitats throughout England. In Hampshire and on the Isle of Wight evidently far less frequent than formerly. Wingspan male 22-24 mm, female 28-30 mm. Distinguished from other related species by the white, dark-rimmed discal spot, present in both sexes [Goater]. Larva feeds on various pondweeds and water plants, living entirely underwater.
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