Order Diptera Linnaeus, 1758 - true flies, mosquitoes, gnats
   Nematocera Latreille, 1825
     Culicomorpha
       Superfamily Chironomoidea Macquart, 1838
         Family Ceratopogonidae Newman, 1834
           Subfamily Ceratopogoninae Newman, 1834
             Genus Culicoides Latreille, 1809
               Subgenus Avaritia Fox, 1955
                 Culicoides scoticus Downes & Kettle, 1952