AMPELOPHAGA. 281 



a white dorsal stripe from behind head to tip of abdomen. 

 Fore wing olive-brown with an indistinct basal band, a sub- 

 basal line, an antemedian band, an abbreviated discocellular 

 band followed by a broad discal one, a discal line, usually 

 dentate, and an oblique apical line, more or less indistinctly 

 continued in zigzag form to hind margin ; interspaces 

 greyish ; all these lines and bands very indistinct ; distal 

 marginal area glossy ; a triangular patch on costa before apex. 

 Hind wing fuscous, cilia nearly white. Underside salmon-buff 

 or clayish, each wing with two faint transverse lines. No 

 comb to mid- and hind tarsus. R 2 and R 3 of hind wing- 

 much farther apart than R 3 and M 1 . Expanse : <$ 90 mm... 

 2 100 mm. 



<£. Tenth sternite truncate, feebly sinuate in distal view. 

 Harpe rather regularly ladle-shaped (fig. 71 C). Penis- 

 sheath (fig. 71 D) : long left process irregularly and sparsely 

 dentate and notched at proximal edge ; the short right 

 process mostly simple, but sometimes with one or two minute 

 teeth. 



Hab. W. Himalayas. We have bred the subspecies at 

 Simla and Mussooree at an elevation of about 7,000 feet, and 

 it is known also from Kulu, Dharmsala and Bukleh. Well 

 distributed but nowhere very common. 



Egg. — Nearly spherical, surface smooth and shining, colour 

 pale green. 



Larva : — 



1st instar. Head round, body cylindrical ; colour pale yellow, 

 with a black bifid horn. 2nd instar. Head round, body 

 cylindrical and long for its diameter ; horn of medium length, 

 straight with a bifid tip ; head yellowish, body pale green, 

 horn black with base orange. 3rd instar. A transverse row 

 of small yellow tubercles on each secondary ring ; horn long, 

 bifid, reddish with black tubercles. 4th instar. Head round ; 

 segment 2 of about the same diameter as head, and the seg- 

 ments increasing rapidly in diameter to 5 ; rest of body nearly 

 cylindrical ; horn long, straight ; surface of head and body 

 dull ; head covered with small tubercles ; body with a trans- 

 verse row of small low tubercles along each secondary ring : 

 horn set with tubercles ; colour of head pale yellow-green, 

 tubercles yellow ; a yellow stripe down each side of dorsal line, 

 and a yellow stripe down cheek ; body pale yellowish-green, 

 tubercles yellow ; on segments 7 to 11 oblique stripes formed 

 of larger tubercles, running in the opposite direction to that 

 usual in sphingid larvae ; a narrow yellow subdorsal stripe 

 from 2 to base of horn, edged above with a broader stripe of 

 reddish-brown ; there are sometimes reddish-brown oblique 

 stripes running in the usual direction ; horn pale red with 

 black tubercles ; legs and spiracles pale red. 



