This beautiful 40c stamp from Taiwan (Republic of China) features the striking Red-bodied Swallowtail (Atrophaneura horishana), a butterfly native to the island’s subtropical forests. The design highlights its velvety black wings with vivid red markings, set against a soft yellow background with a floral motif. Issued as part of a butterfly-themed definitive or commemorative series, it reflects Taiwan’s mid-20th-century focus on showcasing local natural heritage through finely printed artwork. A desirable item for collectors of Asian fauna, thematic butterfly collections, and Taiwan postal history.