| Pseudothysanoes yuccae (Wood, 1956) |
| Pseudothysanoes yuccavorus Wood, 1971 |
| Ptinopsis Champion, 1906 |
| Ptinopsis floccosa Champion, 1906 |
| Pycnarthrum Eichhoff, 1878 |
| Pycnarthrum amersum Wood, 1983 |
| Pycnarthrum brosimi Wood, 1971 |
| Pycnarthrum funerium Wood, 1971 |
| Pycnarthrum hispidum (Ferrari, 1867) |
| Pycnarthrum reticulatum Schedl, 1940 |
| Pycnobaris Casey, 1892 |
| Pycnobaris nigrostriata Fall, 1913 |
| Pycnogeraeus Casey, 1920 |
| Pycnogeraeus arcuatirostris (Champion, 1908) |
| Pythis Boie, 1826 |
| Pythis amplicollis Champion, 1911 |
| Rhamphina Rafinesque, 1815 |
| Rhamphini Rafinesque, 1815 |
| Rhianus Pascoe, 1889 |
| Rhianus mexicanus Pascoe, 1889 |