| Acritus natchez Marseul, 1856 |
| Acritus optatus Cooman, 1947 |
| Acritus oregonensis Hatch, 1962 |
| Acritus rugulosus Marseul, 1856 |
| Acritus simpliciculus Gemminger & Harold, 1868 |
| Acritus simpliculus Marseul, 1856 |
| Acritus sparsellus Casey, 1916 |
| Acritus volitans Fall, 1901 |
| Aeletes Horn, 1873 |
| Aeletes (Aeletes) Horn, 1873 |
| Aeletes (Aeletes) dybasi Wenzel, 1944 |
| Aeletes (Aeletes) simpliculus (Marseul, 1856) |
| Anapleini Olexa, 1982 |
| Anapleus Horn, 1873 |
| Anapleus mexicanus Casey, 1916 |
| Anapleus wenzeli Vomero, 1977 |
| Aphanister Reinchensperger, 1933 |
| Aphanister fungifer Reinchensperger, 1933 |
| Atholus Thompson, 1859 |
| Atholus abducens Mazur, 1984 |