Cyclocephala Dejean, 1821

(not Cyclocephala Strobl, 1902) [348 species and 7 additional subspecies].

The valid type species fixation is that of Blanchard in Audouin et al. (1843), who selected Melolontha geminata Fabricius, 1801, but that species is currently included in the genus Dyscinetus Harold, 1869 .

An application to the Commission is necessary to fix Melolontha signata Fabricius, 1781 (= Cyclocephala amazona (Linnaeus, 1767)) as the type species of Cyclocephala Dejean, 1821 .

Aclinidia Casey, 1915 . Type species Melolontha castanea Olivier, 1789, by original designation. Synonymy by Endrődi (1966a).

Cyclocephala (Isocoryna) Casey, 1915 . Type species Cyclocephala (Isocoryna) jalapensis Casey, 1915, by monotypy. Synonymy by Endrődi (1966a).

Cyclocephala (Plagiosalia) Casey, 1915 . Erected for three species ( Cyclocephala complanata Burmeister, 1847; Cyclocephala (Plagiosalia) emacerata Casey, 1915; Cyclocephala (Plagiosalia) obliquata Casey, 1915) but no type species designated. Synonymy by Endrődi (1966a).

Diapatalia Casey, 1915 . Type species Cyclocephala discicollis Arrow, 1902, by original designation. Synonymy by Endrődi (1966a).

Dichromia Casey, 1915 . Type species Cyclocephala dimidiata Burmeister, 1847 (= Cyclocephala melanocephala (Fabricius, 1775)), by original designation. Synonymy by Saylor (1945).

Halotosia Casey, 1915 . Type species Cyclocephala fasciolata Bates, 1888, by original designation. Synonymy by Endrődi (1966a).

Homochromina Casey, 1915 . Type species Homochromina divisa Casey, 1915 (= Cyclocephala sanguinicollis Burmeister, 1847), by original designation. Synonymy by Endrődi (1966a).

Mononidia Casey, 1915 . Type species Cyclocephala carbonaria Arrow, 1911, by original designation. Synonymy by Endrődi (1966a).

Ochrosidia Casey, 1915 . Type species Melolontha immaculata Olivier, 1789, by original designation. Synonymy by Saylor (1945).

Ochrosidia (Graphalia) Casey, 1915 . Erected for four species ( Cyclocephala fulgurata Burmeister, 1847; Cyclocephala lunulata Burmeister, 1847; Cyclocephala comata Bates, 1888; Ochrosidia (Graphalia) oblita Casey, 1915) but no type species designated. Synonymy by Endrődi (1966a).

Spilosota Casey, 1915 . Type species Spilosota nubeculina Casey, 1915 (= Cyclocephala hirta LeConte, 1861), by original designation. Synonymy by Saylor (1945).

Stigmalia Casey, 1915 . Type species Cyclocephala mafaffa Burmeister, 1847, by original designation. Synonymy by Endrődi (1966a).

Aspidolea (Aspidolites) Höhne, 1922b (not Aspidolites Conrad, 1841). Type species Aspidolea (Aspidolites) atricollis Hohne, 1922 (= Cyclocephala histrionica (Burmeister, 1847)), by monotypy. Synonymy by Arrow (1937b).

Aspidolella Prell, 1936 . Replacement name for Aspidolea (Aspidolites) Höhne, 1922, not Aspidolites Conrad, 1841. Synonymy by Blackwelder (1944).

Albridarollia Bolivar y Pieltain, Jiménez-Asúa & Martínez, 1963 . Type species Albridarollia ocellata Bolívar y Pieltain, Jiménez-Asúa & Martínez (= Cyclocephala ocellata Burmeister, 1847), by original designation. Synonymy by Endrődi (1966a).

Cyclocephala (Paraclinidia) Martínez, 1965b . Type species Cyclocephala (Paraclinidia) endrodii Martínez, 1965, by original designation. Synonymy by Endrődi (1966a).

Surutoides Endrődi, 1981 . Type species Surutoides mirabilis Endrődi, 1981 (= Cyclocephala variolosa Burmeister, 1847), by original designation. Synonymy by Dechambre (1991).