Order Diptera Linnaeus, 1758 - true flies, mosquitoes, gnats
   Brachycera Zetterstedt, 1842
     Cyclorrhapha
       Muscomorpha Sharp, 1894
         Schizophora
           Acalyptratae
             Superfamily Sciomyzoidea Fallen, 1820
               1 Family Coelopidae - kelp flies
               2 Family Dryomyzidae Schiner, 1864
               3 Family Helcomyzidae
               4 Family Heterocheilidae
               5 Family Phaeomyidae see Family Phaeomyiidae
               5 Family Phaeomyiidae
               6 Family Sciomyzidae Fallen, 1820
               7 Family Sepsidae Walker, 1833