Transferred to other genera:

Singa abbreviata Keyserling, 1879 -- see Bertrana

Singa aenea Kroneberg, 1875 -- see Hypsosinga

Singa affinis O. Pickard-Cambridge, 1876 -- see Hypsosinga

Singa albovittata Westring, 1851 -- see Hypsosinga

Singa atra Kulczyński, 1885 -- see Hypsosinga

Singa attica Simon, 1884 -- see Hypsosinga

Singa aussereri Thorell, 1873 -- see Hypsosinga

Singa bengryi Archer, 1958 -- see Metepeira

Singa calix (Walckenaer, 1841) -- see Metazygia

Singa crewi Banks, 1903 -- see Metazygia

Singa cubana Banks, 1909 -- see Hypsosinga

Singa dotana Banks, 1914 -- see Exalbidion

Singa duodecimguttata Keyserling, 1879 -- see Spilasma

Singa erythrothorax Taczanowski, 1873 -- see Alpaida

Singa essequibensis (Hingston, 1932) -- see Eustala

Singa flava O. Pickard-Cambridge, 1894 -- see Araneus

Singa floridana Banks, 1896 -- see Araneus

Singa gracilenta (Roewer, 1942) -- see Argiope

Singa groenlandica (Simon, 1889) -- see Hypsosinga

Singa hentzi Banks, 1907 -- see Hypsosinga

Singa heri (Hahn, 1831) -- see Hypsosinga

Singa leucogramma (White, 1841) -- see Alpaida

Singa linyphiformis (Bösenberg & Strand, 1906) -- see Hypsosinga

Singa longicauda Taczanowski, 1878 -- see Cyclosa

Singa marmorata Taczanowski, 1873 -- see Alpaida

Singa maura (Hentz, 1847) -- see Metazygia

Singa melania Chamberlin & Ivie, 1947 -- see Hypsosinga

Singa modesta Banks, 1896 -- see Hypsosinga

Singa mollybyrnae McCook, 1894 -- see Metazygia

Singa nigripes Keyserling, 1884 -- see Hypsosinga

Singa nigrofasciata L. Koch, 1881 -- see Hypsosinga

Singa niveosigillata Mello-Leitão, 1941 -- see Alpaida

Singa orotes Archer, 1951 -- see Hypsosinga

Singa phragmiteti Nemenz, 1956 -- see Larinia

Singa pratensis Emerton, 1884 -- see Araneus

Singa pygmaea (Sundevall, 1831) -- see Hypsosinga

Singa quadripunctata Kishida, 1931 -- see Hypsosinga

Singa rubens (Hentz, 1847) -- see Hypsosinga

Singa rufula Simon, 1874 -- see Hypsosinga

Singa sanguinea C. L. Koch, 1844 -- see Hypsosinga

Singa scabristernis Kulczyński, 1887 -- see Hypsosinga

Singa singaeformis (Scheffer, 1904) -- see Hypsosinga

Singa theridiformis (Bösenberg & Strand, 1906) -- see Hypsosinga

Singa trapezoides (Karsch, 1879) -- see Eriophora

Singa truncata Banks, 1901 -- see Hypsosinga

Singa vanbruyseli Becker, 1879 -- see Cyclosa

Singa variabilis Emerton, 1884 -- see Hypsosinga

In synonymy:

Singa campestris Emerton, 1915 = Singa keyserlingi McCook, 1894 (Levi, 1972a: 232)

Singa decora (Simon, 1891) = Singa neta O. Pickard-Cambridge, 1872 (Levy, 1984: 124)

Singa hamata (Olivier, 1789) = Singa hamata Clerck, 1757 (, Clerckian names validated by ICZN, 1959 (Direction 104))

Singa pollocki (Denis, 1956, T from Lithyphantes = Steatoda) = Singa neta O. Pickard-Cambridge, 1872 (Levy, 1984: 124)

Singa septemguttata (Simon, 1873, T from Steatoda) = Singa neta O. Pickard-Cambridge, 1872 (Levy, 1984: 124)

Nomina dubia:

Singa hamata melanocephala C. L. Koch, 1836a: 44, f. 199 (m, Italy) -- Breitling et al., 2016b: 72

Singa moesta Banks, 1898b: 256, pl. 15, f. 3 (f, Mexico) -- Levi, 1972a: 231

Singa tremens Holmberg, 1876: 16 (f, Argentina) -- Levi, 1972a: 231

Singa vittata Taczanowski, 1873: 128 (f, French Guiana) -- Levi, 1972a: 231