Central Taxonomic Thesaurus
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  Animalia
      Arthropoda
        Hexapoda
               [Apterygota]
            Insecta
              Pterygota
                Neoptera
                       [Endopterygota]
                       [Exopterygota]
                    Coleoptera
                      Polyphaga
                        Cucujiformia
                          Curculionoidea
                            Brentidae
                              Antliarhininae
                              Apioninae
                                     [Apionidae]
                                     Apion
                                     Exapion
                                             Exapion ulicis
                                     Perapion
                                             Perapion antiquum
                                             Perapion neofallax
                                             Perapion violaceum
                                               Perapion violaceum harcyniae
                                               Perapion violaceum violaceum
                                     Arrhenodes
                                             Arrhenodes minuta
                                             Arrhenodes minutus
                              Brentinae
                                     Brentus
                                     Chrysapion
                                             Chrysapion auctum
                                             Chrysapion tantillum
                              Cyladinae
                                     Lispotherium
                                     Cylas
                                             Cylas formicarius
                              Eurhynchinae
                                     [Eurhynchidae]
                                     Aporhina
                                     Ctenaphydes
                                     Eurhynchus
                                     Orapaeus
                              Nanophyinae
                                     [Nanophyidae]
                                     Nanophyes
                                             Nanophyes marmoratus
                                     Paratrachelizus
                                             Paratrachelizus advena
                                     Stereodermus
                                             Stereodermus dentipes
                                     Trichapion
                                             Trichapion nigrum
                                             Trichapion oblitum
                                             Trichapion rostrum
                                             Trichapion sayi