Over all length 8 - 9mm. They have bright metallic green eyes with dark red spots. The abdomen has twin black lobes on the second segment and the wings have a dark leading edge and dark bands across them.
Wet marshes and bogs that are well shaded. The Lower Path at the reserve is a popular site for them. The females will find you.
Status and distribution
Common and well distributed throughout Britain. Common on the reserve.
Best time to see
May to mid-September.