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  Animalia
      Arthropoda
        Hexapoda
               [Apterygota]
            Insecta
              Pterygota
                Neoptera
                       [Endopterygota]
                       [Exopterygota]
                    Diptera
                      Nematocera
                             [Anisopodoidea]
                             [Bibionoidea]
                             [Culocoidea]
                             [Mycetophiloidea]
                             [Psychodoidea]
                             [Tipuloidea]
                        Ptychopteromorpha
                            Ptychopteridae
                              Bittacomorphinae
                                     Bittacomorpha
                                             Bittacomorpha affinis
                                             Bittacomorpha cinctellus
                                             Bittacomorpha clavipes
                                                   [Tipula clavipes]
                                             Bittacomorpha leachi
                                             Bittacomorpha occidentalis
                                             Bittacomorpha ornatellus
                                             Bittacomorpha pictodes
                                             Bittacomorpha plicipennis
                                             Bittacomorpha quadripustulatus
                                             Bittacomorpha subplicatus
                                             Bittacomorpha subtilis
                                     Bittacomorphella
                                             Bittacomorphella fenderiana
                                             Bittacomorphella jonesi
                                                   [Bittacomorpha jonesi]
                                             Bittacomorphella pacifica
                                             Bittacomorphella sackenii
                                                   [Bittacomorpha sackenii]
                              Ptychopterinae
                                     Ptychoptera
                                             Ptychoptera byersi
                                             Ptychoptera coloradensis
                                             Ptychoptera metallica
                                             Ptychoptera minor
                                             Ptychoptera monoensis
                                             Ptychoptera osccola
                                             Ptychoptera pendula
                                             Ptychoptera quadrifasciata
                                                   [Ptychoptera rufocincta]
                                             Ptychoptera sculleni
                                             Ptychoptera townesi
                                             Ptychoptera uta