LYCANID, CHATOPROCTA. 311 
of white at the costal margin, the apex and outer margin rufous-brown ; a submarginal line 
white. Ci/ia white. UNDERSIDE, doth wings rufous-brown, crossed by a common band of 
white, with conical submarginal spots of white centred with brown. /orewing with three dark 
brown spots at the anal angle. Aindwing with the anal angle irrorated with white, and 
marked by three black spots surrounded with orange, the orange bordered above with black 
and blue.” (Hewitson, 1. c.) The FEMALE does not differ from the male except in its rather 
broader wings, 
I met with this species in one spot at Kujiar, near Dalhousie, at the end of May, 1879. 
Mr. A. Grahame Young has sent many specimens from Kulu, asalso has Mr. P. W. Mac- 
kinnon from Masuri. It appears to be single-brooded, occurring in May and June only, 
Mr. Moore records it from Nepal; so far I have no certain knowledge of its occurring east of 
Masuri, neither Colonel Lang nor Mr. Doherty have met with it in Kumaon. 
The figure shows both sides of a female specimen from Masuri in my collection. 
Genus 137.-CHETOPROCTA, nov. (PLaTE XXVII). 
FOREWING, triangular ; costa regularly and evenly arched, oter margin slightly convex, 
apex slightly acute, zzzer margin straight ; costal mervure terminating opposite the end of 
the discoidal cell; first sebcostal nervule given off at about one-third before the end of the 
discoidal cell, second subcostal originating near the end of the cell, much nearer to the apex 
of the cell than to the base of the first subcostal, ¢izvd subcostal originating from the sub- 
costal nervure about midway between the end of the cell and the apex of the wing ; no 
upper disco-cellular nervule, middle disco-cellular concave, /ower disco-cellular also concave, 
rather longer than the middle disco-cellular ; /ower discocdal nervule from their point of 
junction, wffer discoidal exactly from the apex of the cell; second median nervule given 
off before the end of the cell ; submedian nervure straight. HINDWING, oval ; furnished 
with a short /ai/ at the termination of the first median nervule ; a very small azal dode ; 
Jirst subcostal nervule originating a short distance before the apex of the cell ; xfer and 
lower disco-celludar nervules in one straight line, in the male outwardly oblique, the lower not 
quite twice as long as the upper ; second median nervule given off a little before the apex of 
the cell. In the female the lower disco-cellular nervule of the hindwing is not quite so out- 
wardly oblique as in the male, consequently the cell is shorter and blunter. Aztenne@ short, less 
than half the length of the costa of the forewing, with a well-formed long gradually-thickened 
club. a/gi short, porrect, not ascending above the lower edge of the eyes, second joint 
densely scaly, third joint naked. 4dédomen in the female furnished with a very dense and large 
tuft of closely-packed pale ochreous-brown hairs. 
Chetoprocta is nearest allied to Zepghyrus, Dalman, from which in both sexes it may at 
once be known in that the upper discoidal nervule of the forewing has its origin from the 
subcostal nervure exactly at the apex of the discoidal cell, whereas in Zephyrus it springs 
from the subcostal some distance beyond the end of the cell ; in Zephyrus also the abdomen 
of the female is normal, whereas in Chefoprocta it is furnished with a dense velvety tuft of 
closely-packed hairs at its end, which is, as far as I know, a unique character amongst 
butterflies, though obtaining in many bombycid moths. 
Chetoprocta contains but a single species, which might be called the “Indian purple 
hair-streak,” being somewhat similarly marked to Zephyrus guercus, Linnzus. The upperside 
of both wings in both sexes is black, with a large discal and basal patch of shining purple. 
Underside greenish-white, with prominent discal bands, the disco-cellular nervules defined 
on both sides by a brown line, and some yellow markings towards the anal angle of the 
hindwing. The markings of the underside are almost precisely similar to those of Zephyrus 
ziha, Hewitson, a species in which the ground-colour is greyish-white, while in C. odata it 
is distinctly glossed with greenish, It occurs in the Western Himalayas, Kashmir, and 
adjoining territories wherever walnut trees grow, its larva feeding on that tree. Ihave de- 
scribed its transformations when describing the species. 
