| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Acrosterigma maculosum (W. Wood 1815) | 0 | 0 | 1 |
| Acteonidae d'Orbigny 1842 | 1 | 0 | 0 |
| Actitis Illiger 1811 | 1 | 0 | 0 |
| Actitis hypoleucos (Linnaeus 1758) (Common Sandpiper) | 0 | 0 | 1 |
| Adiantum (maidenhair fern) | 3 | 0 | 0 |
| Adiantum diaphanum Bl. | 0 | 0 | 1 |
| Adiantum hispidulum Sw. (rough maidenhair) | 0 | 0 | 1 |
| Adiantum pubescens | 0 | 0 | 1 |
| Advena Gude 1913 | 2 | 0 | 0 |
| Advena campbellii (Gray 1834) | 0 | 0 | 1 |
| Advena charon Preston 1913 | 0 | 0 | 1 |
| Aedes (mosquito) | 1 | 0 | 0 |
| Aedes australis (Erichson 1842) | 0 | 0 | 1 |
| Aegires Lovén 1844 | 2 | 0 | 0 |
| Aegires citrina | 0 | 0 | 1 |
