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4- Species Poseidon (Doubleday) ; Darnley Islands, 

 includes vars. : — 



a. 

 b. 



c. 

 d. 



e. 

 /• 



Euphorion (?) 



Pronomns; Cape York, Australia, and Thursday 

 Island. 



Archideus ; New Guinea, Waigiou. 



Cronius; New Guinea. Upper surface of posterior 



wings without black or yellow marks. 

 Triton; Rawak. 



Oceanus ; Felder gives no locality. 

 Brunneus; d'Entrecasteaux Islands (a locality where 



many lovely new butterflies were obtained by 



Mr. Meek). 



Pegasus ; New Guinea, Dorey, Humboldt Bay. 

 Kirschi (a var. of Pegasus) ; New Guinea. 

 Aruana ; Aru Islands. 



Valentina ; Port Moresby (based on dwarfed speci- 

 mens of Aruana. 



Hecuba, Key Island. 



Boisduvali ; Woodlark Island. Like Poseidon. Mr. 

 Rothschild gives in addition a notice of speci- 

 mens of some of these forms received by him 

 from the Islands of Torres Strait, the Louisiade 

 Archipelago and d'Entrecasteaux Islands.* 



5. Species Croesus, Wallace ; Batjan (or Batchian). 



J- 

 k. 



I. 



m. 



* In the $ 1 of most of these forms the median nervure of the forewing is more 

 or less accentuated with green scales, as are also the median nervules as far as the 

 sexual stigma or brand. Occasionally some of the other nervures are also thus 

 distinguished slightly. This is not the case with Priamus, Richmondia, or Cassandra. 



6. Species Lydius, Felder ; Ternate, Halmahera,Gilolo. 

 Important differences from the male of Croesus, and an 

 entirely different pattern of female, are sufficient reasons 

 for regarding this as a distinct species, at any rate till 

 we find that the species is dimorphic, which, as I have 

 said elsewhere, is probable. 



7. Species Urvilliana, Guerin ; New Ireland, Duke of 

 York Island, Solomon Islands. 



a. Bornemanni, Pagenstecher ; New Britan, green var. 



b. EumcBus, Rippon ; (no locality). A transitional 



variety between Poseidon and Urvilliana. 



In these 7 species of the genus Ornithoptera, I do not 

 include Oberthiir's Goliath, which as I have shown else- 

 where belongs to the genus Schoenbergia. 



A variety of Poseidon in the Tring Museum is mentioned 

 by Mr. Rothschild as having the median vein of the male 

 forewing without green scales. 



My Eumceus has blue-green scales on its median vein — 

 thereby suggesting its close relationship with Poseidon. 



A var. of Brunneus 2 , in the coll. of the Hon. W. Roth- 

 schild, has the white patch of the cell of the anterior wings 

 obliterated, but the discal markings are present. 



Another var. has the white patch of the anterior wing 

 cell, occupying nearly the whole area of the cell. 



ADDITIONAL BIBLIOGRAPHY TO POSEIDON. 



Papilio Priamus, var., Quoy et Gaimard, Voyage de l'Uran, p. 551, t. 83, f. 3 (1815) Rawak. t . 

 „ Thon, Ent. Archiv., p. 125 (1828). i. 

 Papilio Pronomus, Felder, Verh. z. b. Ges. Wien., p. 290, n. n (1864). ? t . 

 Papilio Poseidon, Gray, Cat. Lep. Ins. Brit. Mus., I. p. 3, n. 5 (1852). 3 . 

 „ List Lep. Ins. B.M. I. p. 3, n. 5 (1856). 3. 

 Felder, Verh. z. b Ges. Wien., p. 290, n. 17, and p. 333, n. 13 (1864). 3 . 

 Ornithoptera Archidaeus, Feld., Wien. Ent. Mon. III., p. 264, n. 12 (1859). 3 . 

 0. Poseidon, Vollenhoven, Tijdschr. v. Ent. III., p. 70, n. 2, and p. 89 ,1860). 3 ? . 

 Ribbe, Iris III. p. 41 (1890) 3 1 . 



Tryon, Report of the Administration of British New Guinea, II., App. v. p. 112 {1892). 

 Papilio Triton, Felder, Verh., z. b. Ges. Wien., p. 290, n. 16, and p. 332, n. 12 (1864). Rawak 3 . 

 Ornithoptera Pronomus, Koch, Indo-Austral. Lep. Fauna, p 37 (1865). 

 Mathew, Tr. Ent. Soc, Lond. p. 168 (1888). 

 0. Priamus, Var. Pronomus, Semper, Journ, Mus., Godeffroy. Heft. 14. p. 41, sub. n. 128 (1878). 3 % . 

 0. Priamus, Var. Hecuba, Rober, Tijdschr. v Ent. XXXIV. p. 263 (1891) 3 . Key Island. 

 Troides Priamus Poseidon, Rothschild, Nov. Zool. Vol. II., p. 188, et seq. (includes Cronius, Triton, Eumteus, Archideus, Kirschi, Pegasus, Aruana, Hecuba Valentina 



Goliath, Brunneus, and Aberrations). (1895). 



