Hab. Luzon (Philippine Islands).
41. Papilio Blumei, Boisduval. Tab. VI. fig. 4 (♂).
P. Blumei, Boisd. Sp. Gén. Lép. p. 206.
Hab. Menado (Celebes) (Wall.). “Amboyna,” Bd., error of locality.
Remark.—This very fine species comes nearest to the last, but is of much larger size, and is conspicuous by its brilliantly coloured tails.
42. Papilio Arjuna, Horsfield.
P. Arjuna, Horsf. Cat. Lep. E. I. Comp. pl. 1. f. 14; Boisd. Sp. Gén. Lép. p. 209. P. Arjuna, var. a., Brit. Mus. Cat. of Papilionidæ, p. 17.
Hab. Java, Borneo, Sumatra (Wall.).
The Bornean form differs from that of Java by its larger size, and on the under surface by the three middle lunules being formed of a violet line only, with scarcely a trace of red beneath it, and by the orange-red lunules both at the anal and outer angles being divided (not margined) by a violet line. The scales sprinkled at the base of the lower wings are white and blue, and are neither so dense nor do they extend so far as the yellowish scales of the Java specimens. In all these particulars the Sumatra specimens are somewhat intermediate, but approach most to those of Borneo. This is one of the examples which show the isolation of Java, notwithstanding its proximity to Sumatra.