| Trachyderini Dupont, 1836 |
| Trachysomus Audinet-Serville, 1835 |
| Trachysomus mexicanus Dillon & Dillon, 1946 |
| Tragidion Audinet-Serville, 1834 |
| Tragidion agave Swift & Ray, 2008 |
| Tragidion annulatum LeConte, 1858 |
| Tragidion armatum LeConte, 1858 |
| Tragidion armatum subsp. armatum LeConte, 1858 |
| Tragidion bicolor Bates, 1885 |
| Tragidion carinatum Thomson, 1861 |
| Tragidion deceptum Swift & Ray, 2008 |
| Tragidion densiventre Casey, 1912 |
| Tragidion dichromaticum Linsley, 1957 |
| Tragidion gracilipes Linsley, 1940 |
| Tragidion peninsulare Schäffer, 1908 |
| Tragidion peninsulare subsp. peninsulare Schäffer, 1908 |
| Tragosoma Audinet-Serville, 1832 |
| Tragosoma harrisii LeConte, 1851 |
| Tragosoma nigripenne Bates, 1892 |
| Triacetelus Bates, 1892 |