Remarks.—I have no doubt whatever that we have here another case of dimorphism, and I therefore unhesitatingly place these supposed species under one name. The male of P. Emalthion very closely resembles the next species (P. Deiphontes), and the 2nd form of female (P. Rumanzovia, Eschsch.) as closely resembles the female of the same species; so that there can be no doubt that Godardt was right in describing them as the sexes of his P. Floridor. The female figured in the British Museum Catalogue is intermediate between these, but has more of the characters of the male; and it is to be remarked that both these forms of female have arrived in Europe accompanied by the same male. I am therefore obliged to reduce by one the hitherto received species of Philippine Papilios.
48. Papilio Deiphontes, n. s.
P. Deiphobus, var. A., Bd. Sp. Gén. Lép. p. 201.
♂. Above: exactly as in P. Deiphobus, but having a small tooth only in place of the tail, and the posterior band of a clear ashy blue.
Beneath: with the markings as in P. Emalthion, except that the red patch at the base of the upper wings is smaller.
♀. Also tailless, but resembling in markings the same sex of P. Deiphobus, the pale patch on the upper wings not extending into the discoidal cell.
Expanse of wings, ♂, 5½ inches; ♀, 5¾ inches.
Hab. Batchian, Gilolo, Ternate, Morty Isl. (Wall.).
49. Papilio Deiphobus, Linnæus.
P. Deiphobus, L., Cramer, Pap. Ex. t. 181. f. A, B; Donovan, Ins. Ind. pl. 17. f. 2; Lucas, Lep. Ex. t. 11; Boisd. Sp. Gén. Lép. p. 200.