This species is difficult to distinguish from most other Pollenia species in the field but under a microscope it is easily confirmed by the presence of a tuft of pale hairs beneath the wing base close the base of the humeral cross-vein (see images below). The angle of light is crucial for seeing this feature, but with practice, it is easily detected and is reliable for both sexes.

• pale hairs on the underside of the wing (at the base of the humeral crossvein)

Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.

It occurs in a wide variety of habitat.

Most likely to be recorded from late March through to late summer.

The larvae are predators/parasitoids of the earthworm Eisenia rosea.

This is a widespread and locally common species in Britain, and can be the most abundant Pollenia in some districts for certain weeks of the year. 

Status in Leicestershire and Rutland not known.