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

by Alfred Russel Wallace

109. Papilio Payeni, Boisduval.

P. Payeni, Bd. Sp. Gén. Lép. p. 235; Van der Hoeven, Tijd. von Nat. Gesch. v. t. 8, f. 1, 2, 6.

Hab. Borneo (Wall.), Java (Van der Hoeven).

Remarks.—This remarkable species has been placed by Boisduval in a group by itself. It, however, agrees very closely in habits and structure with this group, and can hardly, I think, be separated, though very abnormal in colouring. P. Evan, Db., is a closely allied species from India; and P. Gyas, Westw., from the same country, is also nearly related, though it has been hitherto placed in another section of the genus.

110. Papilio Sarpedon, Linnæus.

P. Sarpedon, L.; Cram. Pap. Ex. t. 122. f. D, E.; Boisd. Sp. Gén. Lép. p. 235.

Chlorisses Sarpedon, Sw. Zool. Ill. 2nd ser. pl. 89.

Hab. Borneo, Sumatra (typical), New Guinea, Aru Is. (darker), Java (broader band) (Wall.).

Local form a (Moluccensis, Cram. Pap. Ex. t. 122. f. D, E).—Black, with the bands and spots rich blue.

Hab. Ceram, Batchian, Gilolo, Bouru (Wall.). (The Ceylon form closely resembles this.)