PAPILIO. 



543 



Papilio nevilli. 



Papilio nevilli, Wood-Mason, Ann. & Mag. Nat. Hist. (5) ix. p. 105 (1882). 



Papilio [Pamsinia) nevilli, Wood-Masou & de Nicevillc, Journ. Asiat. Soc, Beug. Iv. 



pt. ii. p. 374, pi. XV. figs. 2,2 a6 (1886). 

 Papilio chentsong, Obertbiir, Etud. d'Eut. xi. p. 13, pi. i. fig. 1 (1886). 



" Posterior wings above with two large pink-white spots, one between the discoidal vein and the 

 second branch of the subcostal, occupying all but the two ends of the space ; the other in the 

 space next in front, smaller, and not extending so far towards the base of the space, and 

 with three bright crimson submarginal lunules, two subequal in the interspaces between the 

 branches of the median vein, and the third between the third median veinlet and the dis- 

 coidal vein, equal to, or slightly greater than, the other two taken together; below with a 

 small pink-white spot between the first branch of the subcostal and the costal veins, forming 

 with the two visible on both sides of the organs a series of three, all equally distant from the 

 outer margin ; the submarginal lunules larger and subequal and much lighter coloured, and 

 with a fourth rather irregular-shaped crimson spot, subequal to the lunules, and divided into 

 two unequal parts by the first median vein, at the end of the basal half of which it is 

 placed, with the tails well-developed but not constricted at base." {Wood-Mason, I. c.) 



Silchar, Cachar. 



Yar. chentsong, Oberthiir. " Je pense que le Papilio clientsong dont Mgr. Biet nous a envoye 

 deux tres beaux males pris a Terkalo, est une forme gcographique de ravana dont il differe 

 par le retrecissement des taches blanches et rosces de ses ailes inferieures en dessus, la 

 coloration plus vive des taches roses des mcmes ailes en dessous et jirincipalemeiit par la 

 forme de ses queues qui sout plus droites, plus allongees, a peine spatulees et non marquees 

 de rouge, comme dans ravana," (ObertJiiir, I. c.) 



The figure of chentsong, Oberthiir, only appears to differ from that of 

 nevilli, Wood-Mason and de Niceville, in the smaller size of the two pale 

 blotches on the costal portion of the outer area of the secondaries. 



I have received a very large number of specimens of this species from 

 Western China, where it was found in most of the localities visited by my 

 collectors. As in the allied species, the submarginal spots of secondaries are 

 liable to considerable variation, not only in size and shape, but also in number 

 and coloration. In some specimens the upper spots, which are usually white, 

 are well marked with red, whilst in other specimens the only spots present 

 are the three upper ones, which are greatly reduced in size and are pure 

 W'hite in colour. In most of my specimens the red spot towards anal angle is 

 absent or only slightly indicated, none of them exhibit any trace of a red 

 spot towards extremity of the tail which seems to be always present in 

 P. ravana, Moore, of which, however, it cannot be considered a local race, as 

 M. Oberthiir suggests it may be. 



JJistribution. Cachar and Western China. 



