r 401 ) 



more proximal thnii in lithonn.^ ; distal margin sliglitlj- poncavp, tlie wing l)eing 

 wider and more triangular tlian in lithonus; three golden-greeu areas as in tithoinis, 

 tlie subcostal streak narrower than in tliat species, streak 8C'— SC!* more or less 

 interrnpted, streak S(J* — HO'' longer than in titlwiuis, and streak S(_/' — K' absent 

 or vestigial, seldom well marked, in which case it does not exteml to cell ; middle 

 area on the whole narrower proximally than in titlioiiiis, the cell-streak and streak 

 M' — (SM') being narrower, the area occasionally continued costad distally, j<iining 



the snbcostal area ; fringe with small white siDots. Hindwing shorter and 



broader than in lithoituti, veins SC'- and R' nearer together, while M' and M" 

 are farther apart ; much more extended golden-yellow, the discoidal cell being 

 all yellow, except the veins, which arc green ; the yellow patches SO-— R- less 

 produced distad froutally, while cellules R-— M' are filled up each by a large 

 golden patch, which is only 2 or 3 mm. short of the thin black distal border of 

 wing ; cellule M' — M- much more extended green than in fitJionus, bearing often 

 a golden spot at the base; black submarginal spot C— SC^ small, smaller than spot 

 SC^ — R\ and this a little smaller than (seldom the same in size as) spot R' — R- ; 

 distally of spots SO' — R- usually a small golden sjiot ; black distal border very 

 thin, somewhat widening costally. 



Underside: the green scaling somewhat golden. Forewing: green cell-patch 



as in tithonus, black patch at apex of cell and beyond much smaller than in that 

 species, the green patches R' — R' reaching close to cell ; the green discal imtches 

 each prodnced distally into a long point midway between veins ; black spots within 

 these patches more proximal than in titlionxs, spots R- — M' standing halfway 

 between cell and distal margin; cellule M- — SM- almost entirely green, a broad 



green streak behind >SM-. Hindwing as above, black border thinner, black 



submarginal spots slightly larger, the uppermost better defined, cellule M" — SM- 

 green, with black patch beyond middle ; hairs upon abdominal fold darker in colour 

 than in tithonus, much less numerous and little over half the length. 



Length of forewing : 73 to 85 mm. 



A fair series of both sexes was obtained. 



111. Papilio weiskei. 



(J. Pajnlin wehlm Ribbe, rnxel-tni-Bov^e p. .308 (1900) (Aroa R.). 



cJ ? . Pcipilh weixhel, Rothschild, Nnr. Z.ml. x. p. 4H1. n. 1. t. 11. f. 4. cj, 5. ? (10O3) (Aroa R.)- 



Among the relatively small series of specimens sent this time by A. S. Meek 

 of this most lovely species there are several ? ? . These agree in colour closely 

 with the 63. The ? figured by us from Meck's first collection, tlie only ? 

 obtained during that expedition, was green instead of purple. We do not think 

 that the difference in colour is geographical or depends on the altitude, but believe 

 that we have here to do with another case of individual dichromatism, so very 

 common among Papilio. 



PIERIDAE. 

 11. Delias dives. 



(J. Diisas direx Rothschild, l.r. p. ?AX n. 7. i. 2. f. 11 (1004). 



We described this fine species from a single male. i\lr. A. S. Meek has now 

 sent a good series of both sexes. Tlie ? is similar to the cJ ; the black apical area 



