Corixidae Leach, 1815
Sigara alternata (Say, 1825)
Sigara arguta (White, 1878)
Sigara (Sigara) assimilis (Fieber, 1848)
Sigara australis (Fieber, 1851)
Sigara (Sigara) basalis (A. Costa, 1843)
Sigara bellula (Horváth, 1879)
Sigara berneri Hungerford & Hussey, 1957
Sigara bicoloripennis (Walley, 1936)
Sigara bradleyi (Abbott, 1913)
Sigara compressoidea (Hungerford, 1928)
Sigara conocephala (Hungerford, 1926)
Sigara (Subsigara) daghestanica Jansson, 1983
Sigara decorata (Abbott, 1916)
Sigara decoratella (Hungerford, 1926)
Sigara defecta Hungerford, 1948
Sigara depressa Hungerford, 1948
Sigara distincta (Fieber, 1848)
Sigara distorta (Distant, 1911)
Sigara dolabra Hungerford & Sailer, 1943
Sigara dorsalis (Leach, 1817)
Sigara douglasensis (Hungerford, 1926)
Sigara falleni (Fieber, 1848)
Sigara fallenoidea (Hungerford, 1926)
Sigara formosana (Matsumura, 1915)
Sigara fossarum (Leach, 1817)
Sigara gordita (Abbott, 1913)
Sigara grossolineata Hungerford, 1948
Sigara hellensii (C.R. Sahlberg, 1819)
Sigara (Tropocorixa) hoggarica Poisson, 1929
Sigara hubbelli (Hungerford, 1928)
Sigara hydratotrephes (Kirkaldy, 1908)
Sigara iactans Jansson, 1983
Sigara infrequens Young, 1962
Sigara (Subsigara) italica Jaczewski, 1933
Sigara (Sigara) janssoni Lucas Castro, 1983
Sigara johnstoni Hungerford, 1948
Sigara knighti Hungerford, 1948
Sigara krafti Stonedahl, 1984
Sigara lateralis (Leach, 1817)
Sigara limitata (Fieber, 1848)
Sigara limnochares Young, 1962
Sigara lineata (Forster, 1771)
Sigara longipalis (J. Sahlberg, 1878)
Sigara mackinacensis (Hungerford, 1928)
Sigara macrocepsoidea Hungerford, 1942
Sigara macropala (Hungerford, 1926)
Sigara mathesoni Hungerford, 1948
Sigara (Halicorixa) mayri (Fieber, 1860)
Sigara mckinstryi Hungerford, 1948
Sigara meridionalis (Wallengren, 1875)
Sigara mississippiensis Hungerford, 1942
Sigara modesta (Abbott, 1916)
Sigara mullaka Lansbury, 1970
Sigara mullettensis (Hungerford, 1928)
Sigara neboissi Lansbury, 1970
Sigara nevadensis (Walley, 1936)
Sigara nigrolineata (Fieber, 1848)
Sigara nigroventralis (Matsumura, 1905)
Sigara omani (Hungerford, 1930)
Sigara ornata (Abbott, 1916)
Sigara paludata Hungerford, 1942
Sigara pectenata (Abbott, 1913)
Sigara penniensis (Hungerford, 1928)
Sigara potamius Young, 1962
Sigara quebecensis (Walley, 1930)
Sigara saileri Wilson, 1953
Sigara (Pseudovermicorixa) salgadoi Lucas Castro, 1983
Sigara scabra (Abbott, 1913)
Sigara scotti (Douglas & Scott, 1868)
Sigara (Vermicorixa) scripta (Rambur, 1840)
Sigara selecta (Fieber, 1848)
Sigara semistriata (Fieber, 1848)
Sigara septemlineata (Paiva, 1918)
Sigara (Sigara) servadeii Tamanini, 1965
Sigara sigmoidea (Abbott, 1913)
Sigara signata (Fieber, 1851)
Sigara solensis (Hungerford, 1926)
Sigara stagnalis (Leach, 1817)
Sigara stigmatica (Fieber, 1851)
Sigara striata (Linnaeus, 1758)
Sigara sublaevifrons (Hale, 1922)
Sigara tadeuszi Lundlbad, 1933
Sigara takahashii Hungerford, 1940
Sigara tasmaniae Jaczewski, 1939
Sigara transfigurata (Walley, 1930)
Sigara trilineata (Provancher, 1872)
Sigara truncatipala (Hale, 1922)
Sigara uruana Young, 1962
Sigara vallis Lauck, 1966
Sigara vandykei Hungerford, 1948
Sigara variabilis (Hungerford, 1926)
Sigara (Retrocorixa) venusta (Douglas & Scott, 1869)
Sigara virginiensis Hungerford, 1948
Sigara washingtonensis Hungerford, 1948
Sigara zimmermanni (Fieber, 1851)