_Remarks._—This species is readily distinguished from _P. Eurypylus_ by the abdomen above, and the abdominal margin, being black in both sexes, by the smaller size, more pointed upper wings, and by the lower wings having a narrower band and larger spots. of a deeper green colour. On the under surface the marginal lunules, the cell-spots, and sub-basal stripe are all larger. Variety or dimorphic form _a_.—_Evemon_, Boisd. Sp. Gén. Lép. p. 234. _Hab._ Malacca, Java, Sumatra, Borneo (♂, ♀). (_Wall._) This may be a distinct species, but is more probably a case of dimorphism. The two forms are absolutely identical, except that the red spot at the base of the lower wings beneath, in _P. Jason_, is constantly absent in _P. Evemon_. 116. PAPILIO TELEPHUS, n. s. Tab. VII. fig. 4 (♂). Larger than _P. Eurypylus_; anterior wings more elongated, with their costal margin abruptly curved near the base. Above, the four spots in the cell of the upper wings linear, of equal width, not increasing in thickness from the base outwards, as in _P. Eurypylus_; the macular band narrower, nearly white on the lower wings; abdomen and abdominal margin pure white. Beneath, the red anal spot is not produced upwards along the abdominal margin, the pearly spots have a distinct dusky border, owing to their exceeding in size those on the upper surface. Expanse of wings 4¼ inches. _Hab._ Celebes (_Wall._). _Remarks._—This is a powerful species of very rapid flight, and difficult to capture. It comes about muddy places in the villages of South Celebes, and is also found abundantly at pools in the half-dry mountain-streams. I consider it quite distinct from all the allied forms. 117. PAPILIO ÆGISTUS, Linnæus. _P. Ægistus_, L.; Cram. Pap. Ex. t. 241. f. C, D; Boisd. Sp. Gén. Lép. p. 231. _Hab._ Ceram, Gilolo, Batchian, Aru Islands (_Wall._) 118. PAPILIO AGAMEMNON, Linnæus. _P. Agamemnon_, L.; Cram. Pap. Ex. t. 106. f. C, D; Boisd. Sp. Gén. Lép. p. 230. This species presents numerous slight modifications of form and marking, which seem hardly prominent enough to characterize as species, though tolerably constant in each locality. Type tailed. _Hab._ India, Manilla. Local form _a_. Tail shorter; wings rather pointed. _Hab._ Timor, Flores (_Wall._). Local form _b_. Tail as in the last; two outer rows of spots on the lower wings absent. _Hab._ Ké Island (_Wall._). Local form _c_. Size small; tail very short. _Hab._ Malacca, Sumatra, Borneo, Java (_Wall._). Local form _d_. Wings much elongated, abruptly curved near the base; tail very short; size large. _Hab._ Celebes (_Wall._). Local form _e_. Broader and less sinuated wings, body large, tail very short. _Hab._ Ceram, Bouru, Batchian (_Wall._). Local form _f_. Form of _c_; tail reduced to a tooth; markings and spots well defined, rounded. _Hab._ New Guinea, Aru Islands, Waigiou (_Wall._). 119. PAPILIO RAMA, Felder.