OCHTERIDAE Kirkaldy, 1906
OCHTERUS Latreille, 1807
+ O. perbosci (Guérin-Méneville, 1843, Pelogonus)
GELASTOCORIDAE Champion, 1901
GELASTOCORINAE Champion, 1901
GELASTOCORIS Kirkaldy, 1897
+ G. flavus flavus (Guérin-Méneville, 1835, Galgulus)
MONTANDONIUS Melin, 1929
+ M. angulatus Melin, 1929
NERTHRINAE Kirkaldy, 1906
NERTHRA Say, 1832
± N. americana (Montandon, 1905, Matinus)
+ N. nepaeformis (Fabricius, 1775 Naucoris)
+ N. ranina (Herrich-Schäffer, 1853, Mononyx)
+ N. raptoria (Fabricius, 1803, Naucoris)
± N. williamsi Todd, 1955
NAUCORIDAE Fallén, 1814
AMBRYSINAE Usinger, 1941
*AMBRYSUS Stål, 1862
CRYPHOCRICINAE Montandon, 1897
*CRYPHOCRICOS Signoret, 1850
LACCOCORINAE Stål, 1876
CTENIPOCORIS Montandon, 1897
+ C. spinipes (Montandon, 1897, Heleocoris)
LIMNOCORINAE Stål, 1876
LIMNOCORIS Stål, 1860
+ L. illiesi De Carlo, 1967
+ L. maculiceps Montandon, 1898
+ L. vianai De Carlo, 1967
NAUCORINAE Stål, 1876
PELOCORIS Stål, 1876
+ P. bipunctulus (Herrich-Schäffer, 1853, Naucoris)
+ P. magister Montandon, 1898
± P. politus Montandon, 1897
+ P. subflavus Montandon, 1898
PLACOMERUS La Rivers, 1956
+ P. micans La Rivers, 1956
BELOSTOMATIDAE Leach, 1815
BELOSTOMATINAE Lauck & Menke, 1961
BELOSTOMA Latreille, 1807
+ B. anurum (Herrich-Schäffer, 1848, Diplonychus)
+ B. aurivillianum (Montandon, 1899, Zaitha)
+ B. costalimai De Carlo, 1938
+ B. dentatum (Mayr, 1863, Zaitha)
= B. dillatatum don, 1903
+ B. foveolatum (Mayr, 1863, Zaitha)
+ B. micantulum (Stål, 1858)
+ B. oxyurum (Dufour, 1863, Zaitha)
+ B. plebejum (Stål, 1858)
+ B. ribeiroi De Carlo, 1933
+ B. stolii (Amyot & Serville, 1843, Zaitha)
+ B. testaceopallidum Latreille, 1807
LETHOCERINAE Lauck & Menke, 1961
LETHOCERUS Mayr, 1853
+ L. annulipes (Herrich-Schäffer, 1846, Belostoma)
+ L. bruchi De Carlo, 1931 = L. delpontei De Carlo, 1930
NEPIDAE Latreille, 1802
NEPINAE Latreille, 1802
CURICTA Stål, 1861
± C.bilobata De Carlo, 1956
± C. brasiliensis De Carlo, 1951
+ C. longimanus De Carlo, 1951
± C. pelleranoi De Carlo, 1951
RANATRINAE Douglas & Scott, 1865
RANATRA Fabricius, 1790
+ R. annulipes Stål, 1854
+ R. brevicauda Montandon, 1905
± R. chagasi De Carlo, 1946
± R. dolichodentata Kuitert, 1949
+ R. heydeni Montandon, 1909
+ R. horvathi Montandon, 1910
+ R. lanei De Carlo, 1946
+ R. montei De Carlo, 1946
+ R. unidentata Stål, 1861
HELOTREPHIDAE Esaki & China, 1927
NEOTREPHES China, 1936
+ N. jaczewskii China, 1940
+ N. plaumanni China, 1940
PLEIDAE Fieber, 1851
NEOPLEA Esaki & China, 1928
± N. argentina Drake & Chapman, 1953
*PARAPLEA Esaki & China, 1928
NOTONECTIDAE Latreille, 1802
ANISOPINAE Hutchinson, 1929
BUENOA Kirkaldy, 1904
+ B. antigone antigone (Kirkaldy, 1899, Anisops)
+ B. koina Nieser & Pelli 1994
+ B. konta Nieser & Pelli 1994
+ B. mutabilis Truxal, 1953
+ B. nitida Truxal, 1953
+ B. paranaensis Jaczewski, 1928
+ B. salutis Kirkady, 1904
+ B. tarsalis Truxl, 1953
+ B. unguis Truxal, 1953
NOTONECTINAE Latreille, 1802
ENITHARES Spinola, 1837
+ E. brasiliensis Spinola, 1837
MARTAREGA White, 1879
+ M. chinai Hynes, 1948
+ M. uruguayensis (Berg, 1883, Signoretiella)
NOTONECTA Linné, 1758
+ N. polystolisma Fieber, 1851
+ N. pulchra Hungerford, 1926
CORIXIDAE Leach, 1815
CORIXINAE Jaczewski, 1924
SIGARA (subgênero TROPOCORIXA)
+ S. chrostowskii Jaczewski,1927
+ S. czakii Jaczewski,1927
+ S. denseconscriptoidea (Hungerford, 1928, Arctocorixa)
+ S. hungerfordi Jaczewski, 1927
HETEROCORIXINAE Hungerford, 1948
HETEROCORIXA White, 1879
+ H. nigra Hungerford, 1928
+ H. wrighti Hungerford, 1948
MICRONECTINAE Jaczewski, 1924
TENAGOBIA Bergroth, 1899
+ T. incerta Lundblad, 1928
+ T. schadei Lundblad, 1928
+ T. schreiberi Espínola, 1975