98 LEPIDOPTERA INDICA. 



one common ancestor and have now developed into easily distinguishable races in the 

 various localities they inhabit. Unfortunately Colonel C. T. Bingham in the Fauna of 

 British India has to a great extent followed Captain Watson, but he does discriminate 

 certain groups and races, and we agree with Dr. Butler that if a thing is distinct it 

 ought not to have the same name as that from which it is admitted to be distinct, 

 because otherwise, every time it is referred to, it would have to be described, and it 

 is so much more simple and convenient to refer to it by its recognised name. 



Imago. — Wings ample, broad. Forewing short, sub-triangular; costa much 

 arched from the base, exterior margin slightly uneven and almost erect ; costal vein 

 extending to two-thirds of the margin ; first sub-costal branch emitted at one-third, 

 and second at one-eighth before end of the cell, third trifid, the fifth from beyond end 

 of the cell ; the cell very broad and extending to fully half the wing ; discocellular 

 veiulets outwardly oblique, both concave, upper shortest, the radial emitted from their 

 angle ; middle median veinlet emitted at one-sixth, and lower at one-third before end 

 of the cell ; sub-median vein much recurved. Hindwing obconical, short; exterior 

 margin oblique, uneven, slightly angular before its lower end ; pre-costal vein slender ; 

 costal vein curved towards the end ; first sub-costal emitted at one-fourth before end 

 of the cell and much curved ; discocellulars very oblique, upper shortest, lower 

 recurved, radial from their angle ; cell broad ; middle median branch curved, emitted 

 at one-sixth, and lower at one-third before end of the cell ; submedian vein slightly 

 curved ; internal vein recurved. Body stout ; thorax and head hairy ; palpi projecting 

 slightly beyond the head, hairy beneath, third joint short ; legs slender ; antennae 

 terminating in a gradually compressed clul). 



Larva. — August 8th, 1864. Wangtoo, N.W. Himalaya. Food plant Capparis 

 ohovata. Head small, second, third and fourth segments largest ; other segments 

 diminishing to twelfth, which is smallest, thus giving a tapering form. Colour 

 uniform pale transparent yellowish-green. On each of fourth to eleventh segments 

 are eight small inconspicuous reddish spots, which are disposed on each segment above 

 tlie legs ; legs and prolegs pale green. A considerable number of various ages and 

 sizes were feeding together on a branch of Capjmris ; one or two bushes were 

 eaten almost bare of leaves. A few empty pup?e were on the twigs, and also in 

 the crevices of the rocks on which grew the bushes. The largest larva3 were 

 l-j% inches in length, and one of these, on capture, began to spin up for pupa. 



Pupa. — August 10th. Boat-shaped; very much arched and very pointed, 

 especially at the anterior extremity, which is produced into a sinuous snout. Colour 

 pale ochreous-yellow, indistinctly very faintly speckled ; a dark narrow stripe down 

 the back, which is slightly keeled along this stripe ; a faint stripe along each side 

 from the posterior extremity up to the wangs ; segments movable. 



Imago emerged on August 25th a female oi Pyrene (Captain A. M. Lang, MS. Notes). 



Type, Pyrkne. 



