Obi Island Birdwing
| Obi Island birdwing | |
|---|---|
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| Male, mounted specimen | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Papilionidae |
| Genus: | Ornithoptera |
| Species: | O. aesacus |
| Binomial name | |
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Ornithoptera aesacus Ney, 1903 |
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Ornithoptera aesacus, the Obi Island birdwing, is a rare species of birdwing butterfly, endemic to the Island of Obira (formerly Obi), Indonesia.
The specific epithet of Ornithoptera aesacus, is named after Æsacus, the eldest son of Priam.
The original description is: aesacus Ney, F. 1903 as Troides priamus Form aesacus. The full reference is Ney, F. 1903 Eine neue Troides-Form von Obi. Insekten-Börse 20 (5): 36., 1903.
The depository of the four syntypes collected by J. Waterstradt in May 1902 is unknown. They were once held by Hermann Rolle, whose collection, in part, was sold to Eugène Le Moult.
Ornithoptera aesacus is a member of the Ornithoptera priamus species group. The two species are very similar but the male O. aesacus has a brilliant turquoise-blue sheen.
The classification of Ornithoptera aesacus as a species does not have full consensus, and is sometimes regarded as a subspecies of Ornithoptera priamus by some, such as Parsons (1996).
The Obi Island birdwing is endemic to the Island of Obira in Indonesia. It inhabits tropical rainforest. Due to extensive logging on the Island the conservation of the species is a concern, and has been classified as 'Vulnerable' by the IUCN Twenty years ago it was the rarest birdwing species in the world. It remains threatened, but is commercially bred.
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