Over all length 4.5 - 6mm. Has a grey-brown body, the male's slim and tapering with bands around the segments, the female's plumper with less obvious banding. The legs are yellow and there is a dark stigma in the wing.
Damp areas with lush vegetation. The Lower Path and the Ouse Dyke banks have attracted this species on the reserve.
Status and distribution
Commonest in the south-east of England and only recently discovered on the reserve.
Best time to see
Mid-May to August.