Central Taxonomic Thesaurus
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  Animalia
      Arthropoda
        Hexapoda
               [Apterygota]
            Insecta
              Pterygota
                Neoptera
                       [Endopterygota]
                       [Exopterygota]
                    Hymenoptera
                      Apocrita
                        Aculeata
                          Vespoidea
                                 [Scolioidea]
                            Rhopalosomatidae
                                     Olixon
                                             Olixon banksii
                                     Rhopalosoma
                                             Rhopalosoma nearcticum