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  Animalia
      Arthropoda
        Hexapoda
               [Apterygota]
            Entognatha
                    Collembola
                      Symphypleona
                          Sminthuroidea
                            Bourletiellidae
                                     Bourletiella
                                             Bourletiella aquatica
                                             Bourletiella arvalis
                                                   [Bourletiella luteus]
                                                   [Smynthurus arvalis]
                                             Bourletiella christianseni
                                             Bourletiella coalingaensis
                                             Bourletiella dreisbachi
                                                   [Deuterosminthurus dreisbachi]
                                             Bourletiella hortensis
                                                   [Bourletiella albamaculata]
                                                   [Bourletiella basalis]
                                                   [Bourletiella dorsalis]
                                                   [Bourletiella hortensis apicalis]
                                                   [Bourletiella hortensis folsomi]
                                                   [Bourletiella juvenilis]
                                                   [Bourletiella maturus]
                                                   [Bourletiella quadrisignatus]
                                                   [Smynthurus hortensis]
                                             Bourletiella ihu
                                             Bourletiella insula
                                             Bourletiella juanitae
                                                   [Bourletiella fallonae]
                                             Bourletiella lippsoni
                                             Bourletiella lurida
                                             Bourletiella millsi
                                             Bourletiella nonfasciata
                                             Bourletiella polena
                                             Bourletiella repanda
                                             Bourletiella russata
                                             Bourletiella rustica
                                             Bourletiella savona
                                             Bourletiella spinata
                                                   [Bourletiella chandleri]
                                                   [Pseudobourletiella chandleri]
                                                   [Smynthurus spinata]
                                             Bourletiella validentata
                                             Bourletiella wexfordensis
                                                   [Deuterosminthurus wexfordensis]
                                             Bourletiella xeromorpha
                                     Heterosminthurus
                                             Heterosminthurus insignis
                                                   [Bourletiella insignis]