In year 2011, Indonesia Post issued the fauna stamp series feature the protected of butterfly species in Indonesia. Some of those species are endangered. The species depicted on the issue stamps are Delias kristianiae, Ornithoptera aesacus, Ornithoptera croesus, and Rippon’s birdwing or Troides hypolitus.
Delias kristianiae is a rare Papuan butterfly that is named after the Indonesian first lady Kristiani Herawati. Kristiani Herawati was presented with a specimen of D. kristianiae after the species was named, which she donated to a museum.
Ornithoptera aesacus is a species of birdwing butterfly endemic to Indonesia.It is only found on the heavily logged island of Obi. It is seriously endangered but commercially bred.
Ornithoptera croesus, commonly known as Wallace's Golden Birdwing is a species of birdwing butterfly found in northern Maluku. The larval food-plant is Pararistolochia.
It is a member of the Ornithoptera priamus species-group which, including croesus, is only found east of Weber's Line. Ornithoptera croesus is now listed as Endangered species.
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Rippon’s Birdwing or (Troides hypolitus) is a birdwing butterfly endemic to the Moluccas and Sulawesi. It is not significantly threatened, but it is protected.
Troides hypolitus is a butterfly from Australasia / Indomalaya ecozone (Australia). The first description was in 1775 by Cramer.
The wingspan is about 18 – 20 cm. This butterfly is a member of the family PAPILIONIDAE. The fore wings are black. Some veins are bordered by white colour. The underside of Troides hypolitus is a copy from upside.
The hind wings of Troides hypolitus are grey. The outer edge is black and it contains a chain of golden spots. The veins are black. The underside is a copy from upside. But, the basic colour is white.It has a chain of golden spots on the hind wings. The females are dark-brown and they are bigger than the males.
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