Central Taxonomic Thesaurus
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  Animalia
      Arthropoda
        Hexapoda
               [Apterygota]
            Insecta
              Pterygota
                Neoptera
                       [Endopterygota]
                       [Exopterygota]
                    Plecoptera
                           [Filipalpia]
                           [Holognatha]
                           [Setipalpia]
                      Systellognatha
                            Peltoperlidae
                              Peltoperlinae
                                     Peltoperla
                                             Peltoperla arcuata
                                             Peltoperla nigriscens
                                             Peltoperla tarteri
                                     Sierraperla
                                             Sierraperla cora
                                                   [Peltoperla cora]
                                     Soliperla
                                             Soliperla campanula
                                             Soliperla fenderi
                                             Soliperla quadrispinula
                                                   [Peltoperla quadrispinula]
                                             Soliperla sierra
                                             Soliperla thyra
                                                   [Peltoperla thyra]
                                             Soliperla tillamook
                                     Tallaperla
                                             Tallaperla anna
                                                   [Peltoperla anna]
                                             Tallaperla cornelia
                                             Tallaperla elisa
                                             Tallaperla laurie
                                                   [Peltoperla laurie]
                                             Tallaperla lobata
                                             Tallaperla maria
                                                   [Peltoperla maria]
                                     Viehoperla
                                             Viehoperla ada
                                                   [Peltoperla ada]
                                                   [Peltoperla zipha]
                                                   [Viehoperla zipha]
                                     Yoraperla
                                           [Yaroperla]
                                           [Yoroperla]
                                             Yoraperla brevis
                                                   [Peltoperla brevis]
                                                   [Yaroperla brevis]
                                                   [Yoroperla brevis]
                                             Yoraperla mariana
                                                   [Peltoperla mariana]
                                             Yoraperla nigrisoma
                                             Yoraperla siletz