Ornithoptera urvilliana (now Ornithoptera primus urvillianus) - D'Urville’s Birdwing
Like all birdwing butterflies, the D'Urville’s Birdwing is considered endangered, and threatened by their beauty. Serious collectors have caused the extinction of one species of birdwing already, and one other is critically endangered.
While once considered a distinct species, D'Urville’s Birdwing can interbreed with other members of Ornithoptera primus, and produce fully fertile and viable hybrids, and as such is now generally considered a subspecies, instead of a distinct species.
Dictionnaire universel d'histoire naturelle. M. Charles D'Orbigny, 1848.