484 SPHXNGIDJE. 



(J. Tenth abdominal segment of the ordinary form as in 

 Rhagastis velata etc. Process of harpe much longer than in 

 R. a. albomarginatus but of the same shape. Penis- sheath 

 resembling that of R. I. lunata, the right process rather long, 

 the left short and paucidentate. The number of large scales 

 on clasper larger than in R. velata and allies, 



Hab. W. Himalayas (Simla). We have bred the species 

 in Simla, where the larvae are rather rare at an elevation of 

 about 7,000 feet in forests with medium rainfall. 



Egg. — Bright green in colour. 



Larva : — 



1st instar. Head and body pale yellow, horn of medium 

 length, straight, black. 2nd instar. Head distinctly bilobed ; 

 body rather thick for its length, segments 4 and 5 slightly 

 tumid ; horn of medium length, thick at base and evenly 

 tapering, slightly up-curved ; head green, body bluish-green 

 with a transverse row of whitish dots along each secondary 

 ring, the dots larger behind 5 ; an indistinct narrow dorsal 

 stripe on 2 to 4 ; an ocellus on 5, oval and oblique, very pale 

 yellow edged narrowly with black except at the upper end ; 

 horn with basal half crimson, rest black with a white tip. 

 3rd instar. Head degraded orange covered with paler tubercles ; 

 body greenish- brown in dorsal area, dull crimson in lateral 

 area, dotted with white, these dots turning to a triangular 

 patch of large white spots above the spiracles of 6 to 11, 

 the apex of the triangle dorsad ; a white subdorsal spot near 

 the front margin of each of these segments ; ocellus with 

 pupil bright yellow with a brownish spot inside it touching 

 the middle of its front edge and shading into the yellow, 

 the pupil edged narrowly with blue, then more broadly with 

 very dark blue ; horn thick at base, tapering first sharply 

 then more gently, up-curved. 4dh instar. Head pale green ; 

 segments 2 to 5 of body pale yellowish -brown in dorsal area, 

 degraded pale green dotted with paler green in lateral area, with 

 a narrow dark dorsal stripe and a yellowish subdorsal stripe ; 

 rest of body dull crimson, with white dots and spots as in the 

 3rd instar ; ocellus as in 3rd instar ; horn with basal two- 

 thirds crimson, then black with the tip translucent white. 



5th instar. Shape as in the genus Rhagastis. Head dull, 

 covered with small round tubercles. Body smooth and dull 

 except for the ocellus, which is shining as though enamelled ; 

 horn short or of medium length, slightly down-curved, tapering 

 evenly to near the tip, where it abruptly narrows to a blunt 

 point ; surface dull, covered sparsely with shining pointed 

 tubercles directed distad, except on the extreme tip. 



Green form : head dark green, eyes brown. Body : seg^ 

 ment 2 green, 3 and 4 pale yellow in dorsal area, green in lateral 

 area : dorsum of 5 yellowish-green, pale yellow between the 



