Body length 5 - 8mm. The thorax is light brown towards the head, becoming blacker towards the abdomen. The abdomen is orange with various patterns of black markings. The wings are often held in a vertical plane when the fly is feeding on nectar. There are several similar species which can be difficult to separate.
Various habitats where the adults can find nectar, often on umbellifers, the larvae are endoparasites of Bishop's Mitre Shieldbugs.
Status and distribution
Uncommon in Britain, being confined to the south of England. This is the second record for Nottinghamshire.
Best time to see
June to September.