Wing length 5 - 8mm. There are several very similar insects in this genus, so care should be taken with identification. This species has a shiny brown thorax and a black abdomen marked with yellow comma-shaped (lunulate) spots. The yellow of the markings broadly meets the edges (margins) of the segments.
Woodland edge and hedgerows beside open, flowery areas. The larvae feed on ground-layer aphids.
Status and distribution
Common and widespread throughout Britain. Fairly common in Nottinghamshire and regularly seen at Netherfield Lagoons.
Best time to see
March to November.