This fungus gnat is distinctively marked, but there are other very similar species and careful examination is required for a reliable identification. 

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.

Associated with fungi and most likely to be encountered in well wooded areas.

Late spring and summer.

The larvae develop in fruiting bodies of large fungi.

Widespread in the southern half of Britain, but also recorded from Scotland.

Status in Leicestershire and Rutland not known.