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

by Alfred Russel Wallace

(N.B. The Protenor group of India is intermediate between this and the last group.)

43. Papilio Memnon, Linnæus. Tab. I. figs. 1 (♂), 2, 3, 4 (♀s).

♂, P. Memnon, L., Cram. Pap. Ex. t. 91. f. C (♂); Boisd. Sp. Gén. Lép. p. 192.

♀, 1st dimorphic form, P. Anceus, Cr. Pap. Ex. t. 222. f. A, B.

? P. Laomedon, Cr. Pap. Ex. t. 50. f. A, B; De Haan, Verh. Nat. Gesch. p. 24, t. 3. f. 2.

♀, 2nd dimorphic form, P. Achates, Cr. Pap. Ex. t. 243. A.

Hab. Java, Sumatra (Wall.).

Local form a.—Male: border of posterior wings beneath narrow and of an ashy-blue colour.

Female: near P. Anceus, Cr., and P. Laomedon, Cr., but of an olive-ashy colour.

Hab. Borneo (Wall.).