152 SPHINGIDJE. 



consists of a ventral triangular ridge which is subvertical upon 

 the plane of the clasper and covered for the greater part with 

 small scales ; the submesial ridge basally produced into a com- 

 pressed process, while it fades away distal] y into the vermicular 

 folding of the clasper ; the dorso -basal process slender, 

 curved, apically dilated, and here beset with bristle-bearing 

 tubercles. 



o. Eighth tergite (fig. 31 E) very different from that of the 

 other species in being deeply divided by a narrow sinus, the 

 two lobes more or less notched or irregularly emarginate. 

 Vaginal plate (fig. 31 D) also characteristic ; the vaginal 

 orifice mesial, surrounded proximally and laterally by a fold, 

 at each side of the orifice a groove bordered by a fold ; post- 

 vaginal plate very broadly rounded, almost truncate, extremely 

 feebly emarginate mesially. 



Hab. E. Himalayas and S. India, extending to S. China and 

 Japan. We have bred the species in S. India, A\here it is 

 found commonly in both forest and open country, usually 

 near water. 



Egg. — Indistinguishable from that of C. phalaris. 



Larva :- — 



Final instar. Head large and heavy, semi-elliptical in shape, 

 vertex rounded ; true clypeus small, apex acute, basal angles, 

 rounded and tumid ; labrum and ligula similar in shape to 

 those of C. phalaris ; eyes arranged as in phalaris. Surface 

 of head moderately shining, covered with small, low, smooth, 

 rounded tubercles ; a line of larger tubercles from apex of each 

 lobe to base of antenna, and parallel lines of tubercles on cheek. 

 Body similar in shape to that of phalaris but more slender. 

 Horn short but well developed, thick at base, tapering sharply 

 to a blunt point, slightly down-curved. Surface of body dull ; 

 a transverse row of small, low tubercles along each secondary 

 ring ; a dorso-lateral anda subspiracular line of larger tubercles 

 on segments 2 to 4, the latter joining the lower end of the 

 oblique stripe on 5 ; a line of large tubercles forming each 

 oblique stripe, those forming the oblique stripes on 5 and 11 

 larger and more sharply pointed than the rest, the latter 

 running across 12 to base of horn ; horn covered densely 

 with small tubercles, and larger tubercles on anal flap and 

 claspers. 



Coloration. — Head glaucous-green, the tubercles yellow ; 

 labrum watery white ; ligula pinkish ; basal segment of 

 antenna dirty white, other segments brownish ; mandible 

 pinkish, tip blackish. ; eyes dark brown. Body grass-green 

 with a glaucous tinge, tubercles yellow. Horn green with the 

 tubercles yellow. Spiracles large, flush, parallel -sided, ends 

 broadly rounded, colour yellowish-green. Length 100 mm. ; 

 breadth 15 mm. ; horn 6 mm. 



