APOKIA. 163 



fore wing this is similar to that on the upperside, but on the hind 

 wing it takes the form of a strongly-curved, connected series of 

 outwardly acutely-pointed, arrow-shaped marks in the interspaces. 

 Antennae, head, thorax and abdomen as in A. soracte. 



Exp. <$ $ 48-54 mm. (1-88-2-1"). 



Hab. N.W. Himalayas : Chitral ; Baluchistan ; Baltestan below 

 the Skoro La at 12,000 feet. 



586. Aporia nabellica, Boisduval (Pieris), Spec. Gen. Up. i, 1836, 



p. 509 ; Butler (Metaporia), P. Z. S. 1872, p. 61 ; Mackinnon $ 

 de Niceville, Journ. Bomb. N. H. Soc. xi, 1898, p. 589 ; Moore 

 (Pieris), Lep. Ind. vi, 1904, p. 151, pi. 524, tigs. 1 a, 1 b, tf $ . 



J $ . Upperside : white, with the veins more or less black, but 

 the ground-colour in most of the specimens that I have seen so 

 densely overlaid by black scales over nearly the whole surface of 

 both fore and hind wings as to leave only a subterminal series of 

 more or less rectangular spots of the white ground-colour apparent 

 on each wing, those on the hind wing are the largest and are 

 inwardly acutely emarginate. In addition, there is a large ill- 

 defined black patch on the discocellulars of the fore wing and a 

 small spot of the same colour generally on the discocellulars of the 

 hind wing. Cilia of both wings black. In nearly all specimens 

 the discoidal cells of the wings are greyish, and on the fore wing 

 there are anterior discal, elongate, greyish spots beyond the apex 

 of the discoidal cell. A few specimens, generally females, are 

 much lighter in colour. In these the irroration of black scales 

 is sparse 'and allows much of the white ground-colour to show 

 through ; the discocellulars of the fore wing, however, are marked 

 by a large black patch as in the darker individuals ; and both fore 

 and hind wings bear postdiscal, irregular, transverse black bands ; 

 that on the tore wing bisinuate, sometimes not extended below 

 vein 2 ; that on the hind wing not reaching the dorsal margin, 

 curved, and formed of somewhat ill-defined, irregular, conjoined, 

 outwardly acute, arrow-shaped black spots. Underside: white, the 

 veins on both wings very broadly black-edged ; apex of fore wing 

 very slightly, the whole surface of the hind wing more strongly 

 suffused with yellow; the fore wing sometimes clouded posteriorly 

 with black scaling ; both fore and hind wings with postdiscal 

 transverse black bands as on the upperside but broader; the base of 

 the hind wing above vein 8 chrome-yellow. Antennae black, the 

 club ochraceous at apex ; head and thorax clothed with fine dusky 

 greyish-black hairs ; abdomen black above, beneath greyish white. 



Exp. c? $ 60-70 mm. (2-38-2-78"). 



Hab. W. Himalayas : Kashmir to 'Nairn Tal, 8,500 to 13,000 feet. 



587. Aporia agathon, Gray (Pieris), Zool. Misc. 1832, p. 33; Boisduval 



(Pierisl, Spec. Gen. Lep. i, 1836, p. 447; Butler (Metaporia), 

 Cist. Ent. i, 1870, p. 61, pi. 3, fig. 10 ; Slices (Pieris Aporia), 

 Trans. Ent. Soc. 1888, p. 415 ; Mackinnon 8? de Nicerille, Journ. 



M2 



