Orphnus MacLeay, 1819 (not Orphnus Albers, 1850) [

100 species and 5 additional subspecies].

Type species Scarabaeus bicolor Fabricius, 1801, by monotypy.

Drepanognathus Lansberge, 1886 .

Type species Drepanognathus mandibularis Lansberge, 1886, by subsequent designation of Paulian (1977).

Sissantobius Ritsema, 1888 .

Replacement name for Drepanognathus Lansberge,1886,not Drepanognathus Smith, 1858 . Synonymy by Frolov (2005).

Orphnus (Parorphnus) Paulian, 1951 .

Type species Scarabaeus bicolor Fabricius, 1801, by original designation. Objective synonym of Orphnus MacLeay.

Orphnus (Horpnus) Paulian, 1951 .

Type species Orphnus (Horpnus) ellenbergei Paulian, 1951, by original designation.

Orphnus (Pachyorphnus) Paulian, 1951 .

Type species Orphnus subfoveatus Fairmaire, 1898, by original designation.

Orphnus (Phornus) Paulian, 1951 .

Type species Orphnus (Phornus) strangulatus Paulian, 1951, by original designation.

Orphnus (Ronphus) Paulian, 1951,

Type species Orphnus (Ronphus) livingstonei Paulian, 1951, by original designation.

Orphnus (Triorphnus) Tauzin, 2022 .

Type species Orphnus (Triorphnus) prespli Tauzin, 2022, by original designation.