| Buchananius Kissinger, 1957 |
| Buchananius crispus (Champion, 1908) |
| Buchananius striatus (LeConte, 1876) |
| Cactopinini Chamberlin, 1939 |
| Cactopinus Schwarz, 1899 |
| Cactopinus atkinsoni Wood, 1983 |
| Cactopinus burjosi Wood, 1983 |
| Cactopinus cactophthorus Wood, 1957 |
| Cactopinus carinatus Wood, 1969 |
| Cactopinus depressus Bright, 1967 |
| Cactopinus desertus Bright, 1967 |
| Cactopinus granulatus Wood, 1983 |
| Cactopinus granulifer Wood, 1969 |
| Cactopinus koebelei Blackman, 1938 |
| Cactopinus mexicanus Wood, 1967 |
| Cactopinus microcornis Wood, 1969 |
| Cactopinus nasutus Wood, 1969 |
| Cactopinus niger Wood, 1969 |
| Cactopinus setosus Wood, 1983 |
| Cactopinus spinatus Wood, 1957 |