• Aporea J.W. Bailey, 1851 (uncertain)
• Segrea Roewer, 1953 accepted as Paraleptoneta Fage, 1913
• Serrea Fischer de Waldheim, 1834 † (unaccepted)
• Shorea Roxburgh ex C.F. Gaertner, 1805
• Sicrea (Pierre) H.G. Hallier, 1921
• Sparrea A.T. Hunziker & N. Dottori, 1978 accepted as Celtis Linnaeus, 1753 [Family: Cannabaceae]
• Sparrea Petersen, 1909 accepted as Parameletus Bengtsson, 1908 [Family: Siphlonuridae]
• Spinorea Jacobus & McCafferty, 2008
• Spirea Pierre, 1898 (unaccepted)
• Sponia Commerson ex Decaisne, 1834 accepted as Trema Loureiro, 1790
• Sponsa Barrande, 1881 (unaccepted)
• Sporus Dejean, 1835 accepted as Elattocerus Schönherr, 1847
• Sucrea T.R. Soderstrom, 1981
• Sutrea Baly, 1876
• Sykorea Corda in Opiz, 1829 (uncertain)
• Syphrea Baly, 1876