On the phenomena of variation and geographical distribution as illustrated by the Papilionidæ of the Malayan region

by Alfred Russel Wallace

P. Gambrisius, Cr. Pap. Ex. t. 157. f. A, B (♂); Boisd. Sp. Gén. Lép. p. 213.

P. Drusius, Cr. Pap. Ex. t. 229. f. A, t. 230. f. A (♀); Boisd. Sp. Gén. Lép. p. 218.

Hab. Amboyna, Ceram, Bouru (Wall.).

Remarks.—The males of this fine species are not uncommon in Ceram, and in hot weather come down to the beach and settle on the wet sand. The females, however, are very rare; I obtained one in the mountainous forests of Ceram, and this is, I believe, the only fine and perfect specimen now in Europe.

Expanse of male 5½–6½ inches, of female 7 inches.

76. Papilio Amphitrion, Cramer.

P. Amphitrion, Cr. Pap. Ex. t. 7 f. A, B; Boisd. Sp. Gén. Lép. p. 217.

Hab. Celebes?

Remarks.—The habitat of this rare species is doubtful. Cramer says, “America;” Godart, “Amboyna;” but I believe its true locality will be found to be Celebes. It forms a transition to the next species.

77. Papilio Euchenor, Guérin.