416 SPHINGID^]. 



c£. Tenth abdominal tergite (fig. 105 A) gradually narrowed, 

 but apex sharply sinuate, the angles acute ; sternite (fig. 105 B) 

 suddenly narrowed distally into a triangular, pointed, slender, 

 mesial process, curved somewhat upwards. Process of harpe 

 slender, apex somewhat dilated, spoon-shaped. Penis-sheath 

 (fig. 105 C) with a right apical row of teeth, and a shorter 

 left row, which is subapical. 



$. Vaginal aperture narrow, a feebly chitinized, rather 

 prominent lobe on each side (fig. 105 D). 



Hab. E. Himalayas, S. India, Burma and Ceylon. Also 

 occurs in the Indo -Australian Region from Ceylon to Fiji. 

 We have bred the species in S. India. It is widely spread, 

 but local. 



Larva : — 



1st instar. Yellowish-white, becoming green after feeding, 

 with a short, straight, black horn. 



Final instar. Head small and round ; clypeus triangular, 

 one -half length of head ; false clypeus with apex acute ; 

 labrum one-half length of clypeus, narrowing frontad ; ligula 

 as long as labrum, broader than front margin of labrum, 

 kidney-shaped, the lobes rather broad ; cutting-edge of mandible 

 slightly waved ; eyes 1, 2, 3 and 4 in a slight curve ; 6 in line 

 with 3 and 4 ; 1 about two eye-diameters from 2 ; 2, 3 

 and 4 about one-half diameter apart ; 5 forming an equilateral 

 triangle with 4 and 6, which are about 2 J diameters apart. 

 Surface of head slightly shining, smooth with very minute 

 hairs. Body dull and smooth ; segments 4 and 5 very swollen. 

 Horn straight, rather short and stout, evenly tapering, dull, 

 and covered with minute, conical, setiferous tubercles. 



A green and a dark form. Green form : head and body 

 bright grass-green, body with a transverse row of obscure 

 yellow dots along each secondary ring ; a narrow, neutral- 

 tinted dorsal stripe from segment 6 to base of horn, darker 

 at the front margin of each segment ; a longitudinally oval 

 ocellus placed dorso-laterally near the front margin of 5, 

 yellow irregularly centred with plum- colour. Horn violet, 

 paler at base, darker at tip ; legs : basal segment whitish, 

 second and third dark purple, claw black ; prolegs green, 

 feet soiled whitish. Spiracles narrowly oval, whitish with 

 a broad, diffuse brown band across the middle. 



In the dark form the head is smoky-brown ; body yellowish- 

 white with short, black or dark brown, parallel lines on each 

 secondary ring ; a narrow black dorsal stripe on 2 to 4, appear- 

 ing only as a black spot at the front margin of the remaining 

 segments ; a broad, pale yellow, dorso-lateral stripe on 2 to 4, 

 appearing again on 6 to 11 as a short length only on each seg- 

 ment, continuous again on 12 to base of horn ; the ocellus 

 on 5 with dark brown centre, bordered narrowly with first 



