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.

Ornithoptera aesacus has been assessed as Vulnerable. The species occurs in an estimated extent of occurrence of around 2,900 km², with a maximum estimate of area of occupancy of 1,045 km²; within this area there are threats such as forest loss which appear to be highest in western Obira, while central

DISTRIBUTION: Obi Island (Sum, Wai) and Tobalai Island. TYPE LOCALITY: Obi Island, Indonesia.

Ornithoptera aesacus, the Obi Island birdwing, is a rare species of birdwing butterfly, endemic to the Island of Obira (formerly Obi), Indonesia. The current Computer Vision Model does not …

Ornithoptera aesacus (Ney, 1903) Obi, Indonesia 9/98 (specimen from Insect World, CA) Obi, Indonesia beautiful male with extra gold spotting: Obi, Indonesia; abberration with gold and some extra blue in forewing: Rare and restricted to the small and heavily logged island of Obi in Indonesia, Its future may depend on commercial ranching which ...

Lepidoptera Mundi species detail page: Papilionidae, Papilioninae, Troidini, Ornithoptera aesacus

Ornithoptera aesacus, the Obi Island birdwing, is an extremely rare species of birdwing butterfly, endemic to the Island of Obira (formerly Obi), Indonesia. While being a very rare species, they are commercially bred and traded.

Ornithoptera aesacus (Obi Island Birdwing) is a species of butterflies in the family swallowtail butterflies. They are listed as vulnerable by IUCN and in cites appendix ii.

In 1978 Kobayashi and Koiwaya, believing that the specimen represented an undiscovered species, described the butterfly as Ornithoptera akakeae. It was later concluded, however, to be a hybrid between O. rothschildi and O. priamus poseidon by Haugum and Low in 1979.

Ornithoptera aesacus is the least known of the three species of the Ornithoptera genus - aesacus, priamus and croesus. The species was described from one male and two females which were bred from larvae collected by John Waterstradt in 1905.