The Papilio ulysses, commonly known as the Ulysses butterfly or blue mountain swallowtail, is native to northeastern Australia, New Guinea, and the Solomon Islands. It is known for its striking iridescent blue wings contrasted by dark brown edges. The butterfly thrives in tropical rainforests and gardens, where it feeds on the nectar of various flowering plants.

Papilio ulysses, commonly known as the Ulysses butterfly, is native to the Australasian region. Its geographical distribution primarily includes northeastern Australia, specifically Queensland, as well as Papua New Guinea and the Solomon Islands.

The Ulysses butterfly typically inhabits tropical and subtropical rainforests. These environments are characterized by high humidity, warm temperatures, and dense vegetation. The butterflies are often found in the forest canopy but can also be seen near flowering plants where they feed.

Papilio ulysses occupies an ecological niche as a pollinator. It primarily feeds on the nectar of flowers, particularly favoring those from the Meliaceae family, such as Euodia and Melicope species. The butterfly's vibrant blue wings also play a role in mating displays and territorial behaviors.