564 L. de Niceville — Little- Known Butterflies from the [No. 3, 



colour between the black costa and subcostal nervure, in P. dubernardi 

 the costa is entirely black as far as that vein ; the discal black spots are 

 smaller and isolated, in P. dubernardi they are conjoined ; on the hind- 

 wing the discal spots are all smaller, in the type the apical one is alone 

 present ; on the underside of the forewing the black spot at the end of 

 the discoidal cell is larger and much more prominent, the discal black 

 spots are much smaller and all isolated instead of being conjoined into 

 a broad black fascia ; the ground-colour of the apex of the forewing 

 and the entire hindwing is of a different shade of yellow, in P. chum- 

 biensis it is ochreous, in P. dubernardi it is " canary and nankin yellow ; " 

 and lastly the shape of the wings is quite different, being much shorter 

 in the present insect, giving it a much more " chubby " appearance, in 

 P. chumbiensis the forewing measures 26 mm., in P. dubernardi 31 mm., 

 while the breath of the wings is the same in both species. 



" This species is only kuown to me from some eight or nine speci- 

 mens, which were brought by a native employed by the late Capt. 

 Harman, R. E., in surveying the Tibetan frontier, and may not occur 

 on this side of the passes. It agrees very well with Oberthur's figure 

 and description, taken from two specimens obtained at Tsekou, in 

 Eastern Thibet, which, like my own, were all males." (Elwes, I.e., in 

 Trans. Ent. Soc. Lond.) From these eight or nine specimens mentioned 

 above Mr. Elwes has presented two to the Indian Museum, Calcutta, 

 and they constitute the types. The species does not seem to have been 

 met with again, and its exact habitat is not known, but as this side of 

 the passes has been well explored entomologically the butterfly probably 

 does not occur in British territory but in the Chumbi Valley, just across 

 the dividing pass between Native Sikkim and Thibet. P. dubernardi is 

 found in Tsekou, Ta-chien-lu, Ni-tou, Wa-ssu-kow, and Chow-pin-sa, in 

 Western China. 



19. Gonepteryx zanekoides, n. sp., Plate I, Figs. 2, d ; 7, $ . 



Habitat : South Chin Hills, Upper Burma. 



Expanse: d\ $,21 inches. 



Description : Very near to G. zaneka, Moore, from the Western 

 Himalayas. Male. Differs from the same sex of that species in having 

 the forewing markedly broader, the costal margin not constricted at half 

 its length * but straight, the apex not so produced. Hindwing distinctly 

 broader than in G. zaneka, almost of the same shade of brimstone as 

 the forewing, the outer slightly paler than the basal half of the wing, in 

 G. zaneka it is pale cream-colour of a uniform shade. Female. Fore- 

 wing agrees in shape with that of the male, consequently differs from the 



* Mr. Moore says that this is so in G. zaneka, by which I presume he means 

 that the costa is slightly excavated in the middle, which is the fact. 



