In the Moluccas themselves the species of Amboyna are the largest.

4.
The species of Celebes equal or even surpass in size those of Amboyna.

{84} 5.

The species and varieties of Celebes possess a striking character in the form of the anterior wings, different from that of the allied species and varieties of all the surrounding islands.6.Tailed species in India or the Indian region become tailless as they spread eastward through the Archipelago.7.In Amboyna and Ceram the females of several species are dull-coloured, while in the adjacent islands they are more brilliant." Again:[63] "In Amboyna and Ceram the female of the large and handsome _Ornithoptera Helena_ has the large patch on the hind wings constantly of a pale dull ochre or buff colour; while in the scarcely distinguishable varieties from the adjacent islands, of Bouru and New Guinea, it is of a golden yellow, hardly inferior in brilliancy to its colour in the male sex.
The female of _Ornithoptera Priamus_ (inhabiting Amboyna and Ceram exclusively) is of a pale dusky brown tint, while in all the allied species the same sex is nearly black, with contracted white markings.

As a third example, the female of _Papilio Ulysses_ has the blue colour obscured by dull and dusky tints, while in the closely allied species from the surrounding islands, the females are of almost as brilliant an azure blue as the males.