| Group | Butterfly |
| Class | Insecta |
| Order | Lepidoptera |
| Family | Nymphalidae |
| Scientific name | Ypthima baldus |
| Common name | Yellow BCommon Five-ring |
| Observation dates on Project M.A.R.S.’s land | 15 Aug 2025 (1st encounter) |
Ypthima baldus, the common five-ring, is a species of Satyrinae butterfly found in Asia. The commonest of a group of confusingly similar rings that have 5 eyespots. Common in parks, villages and wayside vegetation in lowland.