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  Animalia
      Arthropoda
        Hexapoda
               [Apterygota]
            Insecta
              Pterygota
                Neoptera
                       [Endopterygota]
                       [Exopterygota]
                    Hemiptera
                      Heteroptera
                             [Geocorisae]
                        Nepomorpha
                               [Cryptocerata]
                               [Heteroptera-nepomorpha]
                               [Hydrocorisae]
                          Corixoidea
                            Corixidae
                              Corixinae
                                     Arctocorisa
                                           [Arctocorixa]
                                           [Arctocoriza]
                                             Arctocorisa carinata
                                                   [Corisa carinata]
                                             Arctocorisa chanceae
                                             Arctocorisa convexa
                                             Arctocorisa lawsoni
                                             Arctocorisa planifrons
                                             Arctocorisa subtilis
                                     Callicorixa
                                             Callicorixa alaskensis
                                             Callicorixa audeni
                                             Callicorixa praeusta
                                                   [Corisa praeusta]
                                             Callicorixa producta
                                               Callicorixa producta noorvikensis
                                               Callicorixa producta producta
                                             Callicorixa scudderi
                                             Callicorixa tetoni
                                             Callicorixa vulnerata
                                     Cenocorixa
                                             Cenocorixa andersoni
                                             Cenocorixa bifida
                                               Cenocorixa bifida bifida
                                               Cenocorixa bifida hungerfordi
                                             Cenocorixa blaisdelli
                                             Cenocorixa dakotensis
                                             Cenocorixa expleta
                                             Cenocorixa kuiterti
                                             Cenocorixa utahensis
                                             Cenocorixa wileyae
                                                   [Arctocorixa wileyae]
                                                   [Arctocorixa wileyi]
                                     Centrocorisa
                                             Centrocorisa kollari
                                                   [Corisa kollari]
                                             Centrocorisa nigripennis
                                     Corisella
                                             Corisella decolor
                                             Corisella edulis
                                             Corisella inscripta
                                             Corisella mercenaria
                                                   [Corixa mercenaria]
                                             Corisella tarsalis
                                     Corixa
                                             Corixa affinis
                                             Corixa dentipes
                                             Corixa panzeri
                                             Corixa punctata
                                     Dasycorixa
                                             Dasycorixa hybrida
                                                   [Glaenocorisa hybrida]
                                             Dasycorixa johanseni
                                             Dasycorixa rawsoni
                                     Glaenocorisa
                                             Glaenocorisa propinqua
                                               Glaenocorisa propinqua cavifrons
                                                     [Corisa cavifrons]
                                                     [Glaenocorisa cavifrons]
                                                     [Glaenocorixa cavifrons]
                                               Glaenocorisa propinqua propinqua
                                             Glaenocorisa quadrata
                                     Graptocorixa
                                             Graptocorixa abdominalis
                                                   [Corixa abdominalis]
                                             Graptocorixa californica
                                             Graptocorixa gerhardi
                                             Graptocorixa serrulata
                                             Graptocorixa uhleri
                                             Graptocorixa uhleroidea
                                     Hesperocorixa
                                             Hesperocorixa atopodonta
                                             Hesperocorixa brimleyi
                                             Hesperocorixa escheri
                                             Hesperocorixa georgiensis
                                             Hesperocorixa harrisi
                                             Hesperocorixa interrupta
                                             Hesperocorixa kennicotti
                                             Hesperocorixa laevigata
                                             Hesperocorixa lobata
                                             Hesperocorixa lucida
                                             Hesperocorixa martini
                                             Hesperocorixa michiganensis
                                             Hesperocorixa minor
                                             Hesperocorixa minorella
                                             Hesperocorixa nitida
                                             Hesperocorixa obliqua
                                             Hesperocorixa scabricula
                                             Hesperocorixa semilucida
                                             Hesperocorixa vulgaris
                                     Morphocorixa
                                             Morphocorixa compacta
                                                   [Arctocorixa compacta]
                                             Morphocorixa lundbladi
                                     Neocorixa
                                             Neocorixa snowi
                                     Palmacorixa
                                             Palmacorixa buenoi
                                             Palmacorixa gillettei
                                               Palmacorixa gillettei confluens
                                               Palmacorixa gillettei gillettei
                                             Palmacorixa janeae
                                             Palmacorixa nana
                                               Palmacorixa nana nana
                                               Palmacorixa nana walleyi
                                     Pseudocorixa
                                             Pseudocorixa beameri
                                             Pseudocorixa guatemalensis
                                                   [Corixa guatemalensis]
                                     Ramphocorixa
                                             Ramphocorixa acuminata
                                                   [Ramphocorixa balanodis]
                                             Ramphocorixa rotundocephala
                                     Sigara
                                       Sigara (Allosigara)
                                             Sigara decorata
                                       Sigara (Arctosigara)
                                             Sigara bicoloripennis
                                             Sigara conocephala
                                             Sigara decoratella
                                             Sigara penniensis
                                       Sigara (Lasiosigara)
                                             Sigara lineata
                                             Sigara trilineata
                                       Sigara (Pediosigara)
                                             Sigara depressa
                                             Sigara hydratotrephes
                                             Sigara saileri
                                       Sigara (Phaeosigara)
                                             Sigara berneri
                                             Sigara bradleyi
                                             Sigara compressoidea
                                             Sigara dolabra
                                             Sigara mackinacensis
                                             Sigara macrocepsoidea
                                             Sigara macropala
                                             Sigara mississippiensis
                                             Sigara paludata
                                             Sigara quebecensis
                                             Sigara sigmoidea
                                             Sigara signata
                                             Sigara variabilis
                                             Sigara zimmermanni
                                       Sigara (Pileosigara)
                                             Sigara douglasensis
                                       Sigara (Sigara)
                                             Sigara striata
                                                   [Notonecta striata]
                                       Sigara (Subsigara)
                                             Sigara fallenoidea
                                       Sigara (Vermicorixa)
                                             Sigara alternata
                                                   [Arctocorisa alternata]
                                             Sigara defecta
                                             Sigara gordita
                                             Sigara grossolineata
                                             Sigara hubbelli
                                             Sigara johnstoni
                                             Sigara knighti
                                             Sigara krafti
                                             Sigara mathesoni
                                             Sigara mckinstryi
                                             Sigara modesta
                                                   [Arctocorixa modesta]
                                             Sigara mullettensis
                                             Sigara nevadensis
                                             Sigara omani
                                                   [Sigara amani]
                                             Sigara pectenata
                                             Sigara scabra
                                             Sigara solensis
                                             Sigara stigmatica
                                             Sigara transfigurata
                                             Sigara vallis
                                             Sigara vandykei
                                             Sigara virginiensis
                                             Sigara washingtonensis
                                       Sigara (Xenosigara)
                                             Sigara ornata
                                     Trichocorixa
                                             Trichocorixa arizonensis
                                             Trichocorixa borealis
                                             Trichocorixa calva
                                                   [Palmacorixa calva]
                                             Trichocorixa kanza
                                             Trichocorixa louisianae
                                             Trichocorixa macroceps
                                             Trichocorixa minima
                                             Trichocorixa reticulata
                                             Trichocorixa sexcincta
                                                   [Trichocorixa naias]
                                             Trichocorixa uhleri
                                             Trichocorixa verticalis
                                                   [Corisa pygmaea]
                                                   [Trichocorixa pygmaea]
                                               Trichocorixa verticalis californica
                                               Trichocorixa verticalis fenestrata
                                               Trichocorixa verticalis interiores
                                               Trichocorixa verticalis saltoni
                                               Trichocorixa verticalis sellaris
                                               Trichocorixa verticalis verticalis
                              Cymatiinae
                                     Cymatia
                                             Cymatia americana
                                             Cymatia coleoptrata
                                                   [Sigara coleoptrata]
                                     Synaptonecta
                                             Synaptonecta issa
                                     Tenagobia
                                             Tenagobia constricta
                                             Tenagobia romani