| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Agaricomycotina | 1 | 0 | 0 |
| Agathis (agathis) | 1 | 2 | 0 |
| Agathis australis (D. Don) Lindl. (kauri) | 0 | 2 | 0 |
| Agelenidae (funnel weavers) | 1 | 0 | 0 |
| Agelenoidea | 1 | 0 | 0 |
| Aglaspidida | 0 | 2 | 0 |
| Agnatha | 2 | 2 | 0 |
| Agrilina | 1 | 0 | 0 |
| Agrilinae | 1 | 0 | 0 |
| Agrilini | 1 | 0 | 0 |
| Agrilus | 2 | 0 | 0 |
| Agrilus anxius Gory 1841 (Bronze birch borer) | 0 | 2 | 0 |
| Agrilus planipennis Fairmaire 1888 (Emerald ash borer) | 0 | 2 | 0 |
| Ahaetuliinae | 1 | 0 | 0 |
| Ailuropoda Milne-Edwards 1870 | 1 | 0 | 0 |
