Expanse. Expanse. Inches. Inches. Ornithoptera (Helena { O. Pompeus 5.8 Amboyna) 7.6 { O. Amphrisius 6.0 Papilio Adamantius } (Celebes) 5.8 } P. Lorquinianus } P. Peranthus 3.8 (Moluccas) 4.8 } P. Blumei (Celebes) 5.4 P. Brama 4.0 P. Alphenor (Celebes) 4.8 P. Theseus 3.6 P. Gigon (Celebes) 5.4 P. Demolion 4.0 P. Deucalion (Celebes) 4.6 P. Macareus 3.7 P. Agamemnon, var. (Celebes) 4.4 P. Agamemnon, var. 3.8 P. Eurypilus (Moluccas) 4.0 } P. Jason 3.4 P. Telephus (Celebes) 4.3 } P. AEgisthus (Moluccas) 4.4 P. Rama 3.2 P. Milon (Celebes) 4.4 P. Sarpedon 3.8 P. Androcles (Celebes) 4.8 P. Antiphates 3.7 P. Polyphontes (Celebes) 4.6 P. Diphilus 3.9 Leptocircus Ennius (Celebes) 2.0 L. Meges 1.8 Species inhabiting Amboyna Allied species of New Guinea and (large). the North Moluccas (smaller). Papilio Ulysses 6.1 { P. Autolycus 5.2 { P. Telegonus 4.0 P. Polydorus 4.9 P. Leodamas 4.0 P. Deiphobus 6.8 P. Deiphontes 5.8 P. Gambrisius 6.4 { P. Ormenus 5.6 { P. Tydeus 6.0 P. Codrus 5.1 P. Codrus, var. papuensis 4.3 Ornithoptera Priamus, Ornithoptera Poseidon, (male) 8.3 (male) 7.0 _Local variation of Form._--The differences of form are equally clear. Papilio Pammon everywhere on the continent is tailed in both sexes. In Java, Sumatra, and Borneo, the closely allied P. Theseus has a very short tail, or tooth only, in the male, while in the females the tail is retained. Further east, in Celebes and the South Moluccas, the hardly separable P. Alphenor has quite lost the tail in the male, while the female retains it, but in a narrower and less spatulate form. A little further, in Gilolo, P. Nicanor has completely lost the tail in both sexes. Papilio Agamemnon exhibits a somewhat similar series of changes. In India it is always tailed; in the greater part of the archipelago it has a very short tail; while far east, in New Guinea and the adjacent islands, the tail has almost entirely disappeared.