| Onthophagus veracruzensis Delgado & Pensado, 1998 |
| Onthophagus vespertilio Howden, Cartwright & Halffter, 1956 |
| Onthophagus villanuevai Delgado & Deloya, 1990 |
| Onthophagus violetae Zunino & Halffter, 1997 |
| Onthophagus viridichevrolati Moctezuma & Halffter, 2020 |
| Onthophagus yescaensis Moctezuma, Hernández & Sánchez-Huerta, 2022 |
| Onthophagus yucatanus Delgado, Peraza & Deloya, 2006 |
| Onthophagus zapotecus Zunino & Halffter, 1988 |
| Onthophagus zoquecornis Moctezuma, Halffter & Mora-Aguilar, 2023 |
| Orizabus Fairmaire, 1878 |
| Orizabus batesi Prell, 1914 |
| Orizabus brevicollis Prell, 1914 |
| Orizabus clunalis (LeConte, 1856) |
| Orizabus cuernavacensis Delgado & Deloya, 1990 |
| Orizabus cultripes Fairmaire, 1878 |
| Orizabus dechambrei Morón, Tapia & Aragón, 2003 |
| Orizabus endrodianus Morón, 1981 |
| Orizabus fairmairei Bates, 1888 |
| Orizabus frontalis Saylor, 1946 |
| Orizabus isodonoides Fairmaire, 1878 |