Fig. 2. _Papilio Macedon_, male, from Celebes (see page 45). This species exhibits in a marked manner the strongly arched wings characteristic of those from Celebes, as contrasted with those represented at figs. 1 and 3, from other islands (see pages 16, 17, and 18). Fig. 3. _Papilio Philippus_, female, from Ceram (see page 45). Fig. 4. _Papilio Blumei_, male, from the north of Celebes (see page 46). This also exhibits the arched wing, as compared with its ally from the Moluccas (fig. 3). Wallace, A. R., “On the phenomena of variation and geographical distribution as illustrated by the Papilionidæ of the Malayan region,” _The Transactions of the Linnean Society of London_, V. 25, 1866, p. 1–71. [Illustration: TRANS LINN SOC. VOL XXV, TAB 6 J. O. Westwood, del. Vincent Brooks, Imp ] [Illustration: TRANS LINN SOC. VOL XXV, TAB 7. J. O. Westwood, del. Vincent Brooks, Imp ] [Illustration: TRANS. LINN. SOC. VOL XXV., TAB. 8 J. O. Westwood, del. Vincent Brooks, Imp ] ------------------------------------------------------------------------ TRANSCRIBER’S NOTES Page Changed from Changed to 75 Trans Linn Soc Vol XXV Tab Trans Linn Soc Vol XXV Tab 2. ● Typos fixed; non-standard spelling and dialect retained. ● Used numbers for footnotes. ● Enclosed italics font in _underscores_. ● The caret (^) serves as a superscript indicator, applicable to individual characters (like 2^d) and even entire phrases (like 1^{st}).