Remarks.—The absence of tails in the female, and the white submarginal lunules in the male, distinguish this at a glance from all its allies. It has a comparatively restricted range, and is very constant in both sexes. The plate sent me by Dr. Felder is not numbered.

66. Papilio Hipponous, Felder[[14]].

[14]. Having obtained a specimen of this insect while these sheets are passing through the press, I find that it should have been placed next to P. Severus.

P. Hipponous, Feld. Lep. Nov. Philipp. p. 12; P. Dironus, B. M. List (no description).

Hab. Luzon, Mindanao (Philippines).

67. Papilio Ambrax, Boisduval.

P. Ambrax, Bd. Sp. Gén. Lép. p. 218; Voy. au Pôle Sud, Lép. t. 1. f. 3, 4 (♂); De Haan, Verh. Nat. Gesch. t. 7. f. 2 (♀). P. Orophanes, Boisd. Sp. Gén. p. 275 (♀).

Hab. Mysol, Salwatty, Dorey (Wall.).

Remark.—I believe that two, if not three, well-marked forms or species have been mixed up under the name of P. Ambrax, as I have endeavoured to show by the references. My specimens of the two sexes of each show a uniformity of character in each locality.

68. Papilio Ambracia, Wallace.