Characteristic wing venation and pigmentation with a diagnostic dark patch near the centre of the discoid cell. 

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.

On bark on a wide range of trees. Browses on microflora such as lichens, fungi, and algae growing on tree trunks.

July-October.

Uncommon in Britain and Ireland.

Unknown.

https://schemes.brc.ac.uk/barkfly/account.aspx?SpeciesID=59