R HO PA L 0 CERA MA LA ) 'A XA , 



2. Delias parthenope. (Tab, XXIV.. lig. ! .) 



Thifea fktrtkmQp§, Wallace, Trans, Eat. Soc. ser. 8, vol. iv. p. 847, u. 8, L (3. f. 5, 5a (1807) ; Buth Proc. 

 Zool. Soc. 1872, p. 29, n. L 



Male. Anterior wings above blackish, with the following bluish-grey markings: — a broad cellular 

 streak, a large spot occupying about two-thirds of the area between the third median nervule and the 

 eubraedian nervure, a smaller spot between the second and third median nervules, a sublunulate spot at 

 end of cell, two contiguous spots beyond end of cell (these are sometimes fused with the marginal spots), 

 and a series of submarginal elongate spots placed between the nervules, of which the two lowermost are 

 shortest and more or lees relieved with greyish. Posterior wings above with a bright carmine-red patch at 

 JjiiHi , and occupying basal third of cell, which is followed by a transverse bluish patch : apex of cell and the 

 area from the upper median nervule to apex of wing blackish, remaining portion bright yellow r neuration 

 and outer margin black, narrowing towards anal angle and inwardly angulated at the uervules. Anterior 

 wings beneath as above, but with the spots larger and more marked with greyish. Posterior wings beneath 

 with a large and outwardly transverse basal patch of carmine-red, broadly margined with blackish; 

 remainder of wing bright yellow, the neuration and outer margin black. Body above and thorax beneath, 

 with legs, black, shaded with bluish ; abdomen beneath greyish* 



Exp, wings, <r | 55 to 70 millim. 



Hab. — Malay Peninsula; Penang (Biggs— coll. DisL) ; Province Wellesley (colls. Dist, and Sailer); 

 Singapore (Wallace). 



The female of this species is unknown to the writer, and the male was alone described by 

 Mr. Wallace. It is allied to the Indian D. pijramus, and bears a similar relationship to that 

 species as wo have seen to exist between D. dionc and D. pastthoe. 



3. Delias ninus. 



Thyca ninu*, Wallace, Trans. Exit. Hog. ear. 8, vol.iv. p. 347, n.y, t. 7, f. 1 (1807). 

 DdU* fitmtf, BufcL Proc, Zool. 9oo. IB72, p, 2t>, n. %. 



This species is only known to the writer by the figure and 

 description given by Mr. Wallace, both of which are here reproduced. 



" Closely allied to T. pitniiriiut. Wall. Miilr. — Wings broader, uppers more 

 triangular, the outer margin not concave and produced. Above : upper wings 

 marked nearly as in T. pyrttmus, but the groin id colour is blacker, and the 

 basal patches bluer and less elongate; lower wings with the red patch at the 

 base much Btaailer, not filling one-third of the cell, below it a broad transverse 

 bluish-ashy hand, paler at the abdominal margin, a large ochre-yellow patch Fio. m.— Delia* uinu* <j , 

 at the anal angle divided into four parts by the uervures ; outer angle black, 



without whitish markings. Beueath almost exactly as in T, p# ramus, but the red semicircle does not 

 extend quite so far down, and the posterior markings of the hind wing are more clearly defined, and 

 of a nearly uniform ochre-yellow/ 1 

 Exp. wings, " 8 inches.'' 



Has. — Malay Peninsula; Malacca; Mount Ophir (coll. Wallace). 



Mr, \Va.lliiLH' aucuratdj slut-s (lie systematic position of his spucies in the following tems ; — 

 " This insect differs so clearly in form, size, markings, colouration, and locality from its allies, 



