Papilio gigon is a butterfly of the family Papilionidae. It is confined to islands in eastern Indonesia (Sulawesi, Sula and Talaud), but common where found [1].
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Collins, N. Mark; Morris, Michael G. (1985). Threatened Swallowtail Butterflies of the World: The IUCN Red Data Book. Gland & Cambridge: IUCN. ISBN 978-2-88032-603-6 – via Biodiversity Heritage Library.
[1] Papilionidae of the World: a pictorial summary