Ceylon birdwing  (Troides darsius)

Endemic to Sri Lanka (4).

Occasionally observed in lowland cities (5), this species survives today mainly in its primary habitat of thinly wooded mountain forests, throughout the island with the exception of the far north (4). The Ceylon birdwing has been recorded from sea-level up to an elevation of 2,000 metres, but is now less frequently seen in the lowlands (5).