| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Arthritica Finlay 1926 | 1 | 1 | 0 |
| Arthritica hulmei Ponder 1965 | 0 | 1 | 0 |
| Asbestopluma | 1 | 0 | 0 |
| Asbestopluma belgicae | 0 | 1 | 0 |
| Asclerocheilus Ashworth 1901 | 1 | 0 | 0 |
| Asclerocheilus nigrocirrus | 0 | 1 | 0 |
| Ascorhynchus | 2 | 0 | 0 |
| Ascorhynchus cooki Child 1987 | 0 | 1 | 0 |
| Ascorhynchus cuculus Fry & Hedgpeth 1969 | 0 | 1 | 0 |
| Asperiscala | 1 | 0 | 0 |
| Asperiscala eltanini | 0 | 1 | 0 |
| Aspidostoma | 0 | 1 | 0 |
| Astacilla Cordiner 1793 | 1 | 0 | 0 |
| Astacilla eminentia Kensley 1984 | 0 | 1 | 0 |
| Astarte | 1 | 0 | 0 |
