238 PIEEIDJJ. 



posterior postdiscal spots in a transverse row that decrease in size 

 towards the costal edge of the wing, jet-black. Hind wing: 

 discocellular spot much smaller than on the upperside and silvery 

 white, the yellow ground-colour prominent on a broad band along 

 the termeri. Antennae bright reddish pink ; head, thorax and 

 abdomen black, the head with tufted pinkish hairs anteriorly, the 

 thorax and abdomen shaded with longish dusky hairs ; beneath : 

 palpi, thorax and abdomen greenish yellow. . Similar with 

 similar markings. Upperside, fore wing : ground-colour from base 

 to terminal black area rich orange-yellow ; anteriorly and at base 

 this colour overlaid by dusky- black scattered scales that extend 

 broadly along the costal margin above the cell. Hind wing : as in 

 the male, but the basal and medial areas much darker, almost jet- 

 black ; the broad terminal yellow band much shaded with dusky- 

 black scales. On the upperside it has altogether a much darker 

 appearance than the male. Underside : as in the d 1 but somewhat 

 paler. Antennae, head, thorax and abdomen similar to those of 

 the rf. 



Exp. 6 2 57-61 mm. (2-24-2-49"). 



Nab. Native Sikhirn : Tungu Valley, 14,000-15,000 feet ; Tibet 

 frontier : Khamba Jong ; Gyautse, above 16,000 feet. 



632. Colias nastes, Boisduval, Icones Hist. Lcp. pi. 8, figs. 4, 5. 



Race leechi. 



Colias nastes, -car. leechii, Elwes, Jour. Bomb. N. H. Soc. xi, 1898, 

 p. 466, c?$. 



Race leechi, Elwes. d 1 9 Upperside : black markings similar to 

 those of G. ladakensis, Felder, but the ground-colour quite different, 

 of a pale greenish-yellow in the d 1 and still duller in the $ , almost 

 a dead sullied white. In no specimen d 1 or $ that I have seen is 

 there a discocellular spot on the hind wing. Underside : dull green- 

 ish white ; veins in both fore and hind wings white. Pore wing : 

 a conspicuous discocellular spot as on the upperside and a transverse 

 postdiscal, generally complete series of black spots ; the costa, apex 

 and the terminal margin more or less irrorated with black scales. 

 Hind wing : basal four-fifths densely overlaid with irrorated black- 

 scaling; along its outer margin this generally ends in a black spot in 

 each interspace ; the area covered by the black scales thus acquires 

 a rich dark green tint ; a pale streak near apex of cell terminates 

 in a black discocellular spot ; the outer terminal fifth covered 

 lightly with yellowish scales, crossing which the terminations of 

 the greenish-white veins stand out conspicuously. Antenna and 

 head pale pinkish-brown; thorax and abdomen above, the palpi. 

 thorax and abdomen beneath, dusky greenish-white. 



Exp. d $ 50-54 mm. (1-98-2-12"). 



Hob. Chonging Valley and Kardong Pass, Ladakh, at from 

 15,000 to 17,000 feet. 



