A long proboscis and a long pointed anal cell near the hind edge of the wing are features that characterise this family. Hind femora of this species are yellowish brown, and the female has a small yellowish pouch under the 5th abdominal segment.
On umbellifers and composites such as Ragwort, especially in drier areas.
When to see it
June to September.
Larvae are internal parasites of bumblebees.
Local and infrequent in Britain.