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  Animalia
      Arthropoda
        Hexapoda
               [Apterygota]
            Insecta
              Pterygota
                Neoptera
                       [Endopterygota]
                       [Exopterygota]
                    Hymenoptera
                      Symphyta
                          Tenthredinoidea
                            Argidae
                                     Arge
                                             Arge humeralis
                                             Arge pectoralis
                                     Schizocerella
                                             Schizocerella pilicornis
                                     Sphacophilus
                                             Sphacophilus cellularis