Status: - Can be locally abundant, with a migratory habit. Widespread in the uplands of northern and western Britain and Eire; more locally confined within lowland heaths. Individuals may turn up almost anywhere during highly productive seasons.
Habitat: - Heathland and moors with bog pools, runnels, cuttings, margins of peaty ponds and lakes supporting bog moss, rushes and sedges.
Flight period: - Mid July to mid September.
General: - Males are not territorial and skit about actively seeking females. Before noon males will search out willing mates away from water and bring the female in tandem to the breeding site.
Copulation takes about 5 minutes. Females lay eggs in tandem with males or alone, the eggs are flicked onto any suitable surface whilst in flight.