This small rhinophorid fly is shiny black and has a protruding mouth-edge, giving it the occasional common name of Pouting Woodlouse Fly. It has white parafacialia, yellow halteres, and the wings have a moderately-long stalk on vein R4+5. Males have paired dust spots on tergites 3 and 4, but these are less visible in females.

Detailed photographs showing the key characters if not identified by a recognised expert.

Can be found in many habitats including grasslands, post-industrial sites, coastal areas and arable margins.

Adults can be found on sunlit foliage or visiting flowers such as Oxeye Daisy, Yarrow and umbellifers. 

Rhinophorid flies are parasitic on woodlice and for this species Porcellio scaber is thought to be a major host.

Widespread and locally common.

Uncommon or under-recorded.