Obi Island Birdwing | |
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Male, mounted specimen | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Lepidoptera |
Family: | Papilionidae |
Genus: | Ornithoptera |
Species: | O. aesacus |
Binomial name | |
Ornithoptera aesacus Ney, 1903 | |
Ornithoptera aesacus, the Obi Island birdwing, is an extremely rare species of birdwing butterfly, endemic to the Island of Obira (formerly Obi), Indonesia. [3] While being a very rare species, they are commercially bred and traded.
The specific epithet of Ornithoptera aesacus, is named after Æsacus, the eldest son of Priam.
The original description is: aesacus Ney, F. (Felix) 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. [3] 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 [1] Twenty years ago it was the rarest birdwing species in the world. It remains threatened, but is commercially bred.
Birdwings are butterflies in the swallowtail family, that belong to the genera Trogonoptera, Troides, and Ornithoptera. Most recent authorities recognise 36 species, however, this is debated, and some authorities include additional genera. Birdwings are named for their exceptional size, angular wings, and birdlike flight. They are found across tropical Asia, mainland and archipelagic Southeast Asia, and Australasia.
Ornithoptera is a genus of birdwing butterflies found in the northern portion of the Australasian realm, east of Weber's line; the Moluccas, New Guinea, the Solomon Islands, and northeastern Australia; except for Ornithoptera richmondia, which may be found in far northeastern New South Wales, Australia, therefore the southernmost distribution of birdwings. This genus includes the two largest butterfly species in the world, the Queen Alexandra's birdwing and the Goliath birdwing. Ornithoptera species are highly prized by insect collectors because they are rare, large, and considered exceptionally beautiful.
Ornithoptera alexandrae, the Queen Alexandra's birdwing, is the largest species of butterfly in the world, with females reaching wingspans slightly in excess of 25 cm to 28 cm. This birdwing is restricted to the forests of the Oro Province in eastern Papua New Guinea.
Ornithoptera goliath, the Goliath birdwing, is a birdwing butterfly found in New Guinea. It is the second largest butterfly in the world, after the Queen Alexandra's birdwing.
Obi is the main island in the Obi Islands group of Indonesia, south of the larger Halmahera in North Maluku. Its area is 2,542 km².
Rothschild's birdwing is a large birdwing butterfly, endemic to the Arfak Mountains in Western New Guinea.
Ornithoptera euphorion, the Cairns birdwing, is a species of birdwing butterfly endemic to Queensland, and is Australia's largest endemic butterfly species. Other common names include Cooktown birdwing and northern birdwing. The names Cairns and Cooktown in its common name reference the Australian cities in the region where this butterfly is found.
Ornithoptera paradisea, the paradise birdwing, is a species of birdwing butterfly found in New Guinea.
Troides dohertyi, the Talaud black birdwing, is a birdwing butterfly endemic to the Talaud and Sangihe islands.
Ornithoptera priamus, the common green birdwing, Cape York birdwing, Priam's birdwing, northern birdwing or New Guinea birdwing is a widespread species of birdwing butterfly found in the central and south Moluccas, New Guinea, Bismarck Archipelago, Solomon Islands, and north-east Australia.
Ornithoptera victoriae, the Queen Victoria's birdwing, is a birdwing butterfly of the family Papilionidae, found in the Solomon Islands and Papua New Guinea.
Ornithoptera croesus, the Wallace's golden birdwing, is a species of birdwing butterfly found in northern Maluku in Indonesia.
Ornithoptera richmondia, the Richmond birdwing, is a species of birdwing butterfly that is endemic to Australia. It is the second smallest of the birdwing species, the smallest being Ornithoptera meridionalis.
Troides andromache, the Borneo birdwing or Kinabalu Birdwing, is a species of butterfly in the family Papilionidae. It is found only in Borneo. In 2023, it was selected as the official state butterfly of the state of Sabah, Malaysian Borneo.
Troides prattorum, the Buru Opalescent Birdwing, is a species of butterfly in the family Papilionidae. It is endemic to Buru in the Maluku Islands of Indonesia.
Troides riedeli, or Riedel's birdwing, is a birdwing butterfly endemic to the Tanimbar Islands, part of the Maluku Islands archipelago in Indonesia.
Troides criton, the Criton birdwing, is a birdwing butterfly found on the islands of Morotai, Halmahera, Bali, Bacan, Ternate and Obi in Indonesia.
Ornithoptera allotei is the name given to a birdwing butterfly that is a natural hybrid between Ornithoptera victoriae and Ornithoptera priamus urvillianus. Despite the fact that hybrids do not warrant a binomial name, the name Ornithoptera allotei persists from the original description of the butterfly as a species.
Troides cuneifera, the Mountain Birdwing, is a large butterfly belonging to the swallowtail family, Papilionidae, found in the Thai-Malay Peninsula, Sumatra, Java and Borneo.