---

Clytocerus ocellaris is most likely a species complex rather than a good species, and much material is tentatively assigned to the species. Other named species in this complex include C. orientalis Wagner, 1994 (east Russia), C. longicorniculatus Krek, 1987 (found in Bosnia, Poland, Czech Republic, probably more widespread) and C. splendidus, Jezek 2007 (Czech Republic, Poland). There are probably other species as well (Jezek 2009 pers.comm, pers.obs), and a revision of the complex is badly needed.

No single key is sufficient for identifying Clytocerus specimens, except that Phil Withers' key probably fits well to the British fauna and Salih Krek's key is suitable for Balkan. I would recommend using Vaillant's Die Fliegen key supplied with more recent taxonomic papers.

Of other Clytocerus species occuring in Northern Europe, both Clytocerus rivosus and C. tetracorniculatus occur in Finland.