186 SPHINGID^E. 



<$. Tenth tergite rounded at the sides, obviously broader 

 before end than in middle, the sinus narrow, lobes notched, 

 inner angle acute ; sternite straight, not or very feebly 

 bent upwards, narrow and long, compressed, upperside rough 

 with minute teeth. Dorso-apical lobe of clasper dagger- 

 shaped ; harpe irregularly notched and tuberculate ; pro- 

 cesses above the penis -sheath very long and slender. 



§. Vaginal ridge convex in middle, with a separate rounded 

 lobe at each side of orifice. 



Hab. E. Himalayas (Assam). We have bred the subspecies 

 in the Khasi Hills, where the larvae are common at about 

 4,500 feet elevation. , 



Egg. — Elongate -ovoid in shape, pale green when first laid ; 

 after some days two reddish-brown stripes appear on the top, 

 somewhat variable in shape and size, but roughly parallel 

 with the long axis. Length 3-5 mm. ; breadth 2-5 mm. 



Larva : — 



1st instar. Head round ; front margin of segment 2 of 

 greater diameter than head, rest of body cylindrical and of 

 less diameter than head ; horn straight, of medium length, tip 

 bifid ; surface of head and body dull, body with a transverse 

 row of small tubercles along each secondary ring ; horn covered 

 with tubercles ; colour of head and body pale yellow ; horn 

 reddish with a pale yellow band about two-thirds from base. 

 2nd instar. Head triangular, with a short process rising from 

 the apex of each lobe, the two processes appressed to near the 

 tips ; body cylindrical ; horn straight, of medium length ; 

 surface of head and body dull, the head covered with small 

 tubercles, and a line of larger tubercles from the apex of 

 each lobe to base of antenna ; body with tubercles as in the 

 1st instar ; seven oblique stripes formed of larger tubercles ; 

 the colour of the head pale green, the tubercles yellow ; pro- 

 cesses brown, and a brown dorsal stripe from their base to 

 nape ; body pale green, the tubercles pale yellow ; horn yellow 

 with the base and tip reddish, the tubercles black. Zrd instar. 

 Little change. 4:th instar. Little change, but the lower portion 

 of the anterior oblique stripe, just above the spiracle on seg- 

 ment 5, wider and formed of larger tubercles, that on segment 10 

 very faint and that on segments 11 and 12 broader than the 

 rest. 



5th instar. The shape the same as that of other larvae in 

 the genus. Head triangular, process on the apex of each 

 lobe reduced to a large low tubercle. Surface of head dull, 

 covered with low rounded tubercles. Horn straight, with 

 a blunt tip. Body dull ; a transverse row of large pointed 

 tubercles along each secondary ring, with some smaller 

 tubercles set among them ; a dorso-lateral line of larger 



