| Corticeus (Corticeus) rufipes (Fabricius, 1801) |
| Corticeus (Corticeus) strublei Blaisdell, 1934 |
| Corticeus (Corticeus) substriatus (LeConte, 1878) |
| Coscinoptilix Allard, 1876 |
| Coscinoptilix gracilicornis Allard, 1876 |
| Cosmonota Blanchard, 1842 |
| Cosmonota geminata Chevrolat, 1877 |
| Cosmonota grammica Chevrolat, 1877 |
| Cosmonota nigripes Chevrolat, 1877 |
| Cosmonota silphoides (Laporte & Brullé, 1831) |
| Craniotus LeConte, 1851 |
| Craniotus blaisdelli Tanner, 1963 |
| Craniotus mardecortesi Aalbu, Smith & Sánchez Piñero, 2015 |
| Craniotus pubescens LeConte, 1851 |
| Craniotus triplehorni Aalbu, Smith & Sánchez Piñero, 2015 |
| Cratidus LeConte, 1862 |
| Cratidus fuscipilosus Casey, 1890 |
| Cratidus ovipennis Casey, 1924 |
| Cratidus rotundicollis Horn, 1870 |
| Cryptadius LeConte, 1851 |