• Celiasis Laporte & Brullé, 1840 (uncertain)
• Ceracia Rondani, 1865
• Ceracis Mellié, 1849
• Ceracris Walker, 1870
• Ceradia J. Lindley, 1845 (uncertain)
• Ceraia Brunner, 1891 [Family: Tettigoniidae]
• Ceraia Loureiro, 1790 accepted as Dendrobium O. Swartz, 1799 [Family: Orchidaceae]
• Cerais Van der Wulp, 1881
• Ceramia D. Don, 1834 (uncertain)
• Ceramis Gerstaecker, 1858 accepted as Hylaia Germar, 1844
• Ceramius Latreille, 1810
• Ceramus Rafinesque, 1815 (unaccepted > nomen nudum)
• Cerania S.F. Gray, 1821 accepted as Thamnolia Acharius ex Schaerer, 1850 [Family: Icmadophilaceae]
• Cerania Weise, 1893 accepted as Aulacophora Chevrolat in Dejean, 1836 [Family: Chrysomelidae]
• Ceranisa Emeljanov, 1982 (uncertain)
• Cerapus Say, 1817
• Ceraria Pearson & Stephens, 1912
• Cerasina Copper, 1995 † accepted as Cerasinella Copper, 2015 † [Family: Lissatrypidae]
• Cerasina Kobelt, 1881 (uncertain > taxon inquirendum) [Family: Lymnaeidae]
• Cerasma McLachlan, 1876
• Ceraspis Lepeletier & Serville, 1825 [Family: Scarabaeidae]
• Ceraspis Schlüter, 1887 † accepted as Grossaspis White & Moy-Thomas, 1940 † [Family: Antiarcha (awaiting allocation)]
• Cerastes Laurenti, 1768 [Family: Viperidae]
• Cerastes Poli, 1791 (uncertain) [Family: Mollusca (awaiting allocation)]
• Cerastes Rafinesque, 1815 (unaccepted > nomen nudum) [Family: Reptilia (awaiting allocation)]
• Cerastes Wagler, 1830 (uncertain) [Family: Reptilia (awaiting allocation)]
• Cerastia Stephens, 1850 (uncertain)
• Cerastis Kolbe, 1883 accepted as Cerastipsocus Kolbe, 1884 [Family: Psocidae]
• Cerastis Ochsenheimer, 1816 [Family: Noctuidae]
• Cerastus Dejean, 1821 accepted as Polydrusus Germar, 1817 [Family: Curculionidae]
• Cerastus Martens, 1860 (unaccepted > nomen nudum) [Family: Cerastidae]
• Cerasus P. Miller, 1754 accepted as Prunus Linnaeus, 1753
• Ceratia Adanson, 1763 (uncertain) [Family: Fabaceae]
• Ceratia Chapuis, 1876 accepted as Aulacophora Chevrolat in Dejean, 1836 [Family: Chrysomelidae]
• Ceratia H. Adams & A. Adams, 1852 [Family: Iravadiidae]
• Ceratias Gistl, 1834 (unaccepted > nomen nudum) [Family: Coleoptera (awaiting allocation)]
• Ceratias Krøyer, 1845 [Family: Ceratiidae]
• Ceratias Robertson, 1903 (uncertain) [Family: Megachilidae]
• Ceratis Kutassy, 1933 † (unaccepted)
• Ceratus de Bonvouloir, 1872
• Cerbaris Topsent, 1898
• Cercaspis Wagler, 1830
• Cerceis Gistl, 1848 accepted as Hippopus Lamarck, 1799 [Family: Cardiidae]
• Cerceis H. Milne Edwards, 1840 [Family: Sphaeromatidae]
• Cerceis Menge, 1866 accepted as Cercidia Thorell, 1869 [Family: Araneidae]
• Cerceis Rafinesque, 1815 (unaccepted > nomen nudum) [Family: Polychaeta (awaiting allocation)]
• Cercis Gistl, 1848 (uncertain) [Family: Coleoptera (awaiting allocation)]
• Cercis Linnaeus, 1753 [Family: Fabaceae]
• Cerealis Paetel, 1875 (uncertain)
• Ceresia Persoon, 1805 accepted as Paspalum Linnaeus, 1759 [Family: Poaceae]
• Ceresia Uvarov, 1928 [Family: Tettigoniidae]
• Ceriaspis Haeckel, 1881 (uncertain)
• Cerobasis Kolbe, 1882
• Ceropsis Dall, 1871 accepted as Milneria Dall, 1881 [Family: Carditidae]
• Ceropsis Gay & Solier, 1839 accepted as Psuchocephalus Latreille, 1828 [Family: Curculionidae]
• Cerosis Gebien, 1920 accepted as Zophosis Latreille, 1802
• Cerris Rafinesque, 1838 (unaccepted)
• Cerysia Bremer, 2001
• Chersis Guenée, 1845 (uncertain) [Family: Lepidoptera (awaiting allocation)]
• Chersis Latreille, 1831 (uncertain) [Family: Arachnida (awaiting allocation)]
• Chersis Walckenaer, 1836 (uncertain) [Family: Arachnida (awaiting allocation)]
• Chrosis Candèze, 1863 accepted as Elatichrosis Hyslop, 1921 [Family: Elateridae]
• Chrosis Guenée, 1845 (uncertain) [Family: Lepidoptera (awaiting allocation)]
• Chrysis Linnaeus, 1761 [Family: Chrysididae]
• Chrysis Linsenmaier, 1987 (uncertain) [Family: Hymenoptera (awaiting allocation)]
• Clasis Townes, 1966
• Cresis Rang, 1829 accepted as Creseis Rang, 1828
• Cycasis Townes in Townes, Momoi & Townes, 1965
• Perasis Hermann, 1905