Over all length 6 - 8mm. A small, brightly coloured fly with an orange abdomen and grey thorax, orange legs and red eyes. There are similar species (eg P. solennis), and detailed examination is needed to identify to species.
Woodland edge and hedgerows, anywhere that dock species grow. The adults feed on pollen and nectar from flowers while the larvae are leaf-miners of dock species.
Status and distribution
Found throughout Britain but commoner in the southern half. Common in Nottinghamshire and at Netherfield Lagoons.
Best time to see
March to October.