PSEUDODOLBINA. 89> 



Hab. E. Himalayas (Khasi Hills, Assam ; Sikkim). We 

 have bred this subspecies in the Khasi Hills, where it is common 

 locally at Cherrapunji, at an elevation of about 4,000 feet, 

 in an area of very heavy rainfall. 



Egg. — Spherical in shape ; surface smooth and shining ; 

 colour bright green ; rather large for the size of the moth. 



Larva : — 



1st instar. Head round and large, body cylindrical ; horn 

 straight, of medium length, strongly bifid, with a bristle on 

 each point ; colour of head and body pale yellowish-green, 

 with short, scattered white hairs ; horn black. 2nd instar. 

 Head round and of considerably larger diameter than the 

 cylindrical body, which is long and slender ; horn rather long, 

 thick at base and tapering rather sharply to a strongly bifid 

 tip ; surface of head and body dull, that of horn shining and 

 covered with short black hairs ; colour of the head yellow, 

 body bluish-green, with short scattered white hairs ; horn 

 black. 3rd instar. Head slightly bilobed, body nearly 

 cylindrical, long for its diameter ; horn long, thick at base and 

 tapering evenly to a bifid tip ; surface of head and body dull ; 

 three transverse rows of small tubercles on segment 2 ; a pair 

 of large tubercles, one on each side of the dorsal line, at about 

 the middle of 3 and 4, with a transverse row of smaller tubercles 

 in front of and behind each pair ; remaining segments with 

 transverse rows of very small tubercles in the dorsal area ; 

 horn shining and covered sparsely at the base, thickly towards 

 the tip, with tubercles. Colour of head bright green with 

 a broad yellow stripe down each cheek from the vertex of each 

 lobe to base of antenna ; mouth-parts pale blue ; segments 2 

 to 4 of the body bright green, rest of body pale bluish-green 

 in the dorsal area, dark bluish -green dotted with white below 

 the oblique stripes, the tubercles all yellow ; oblique stripes on 

 5 to 11 formed by a triangular white patch on each segment 

 Avith a black stripe above it, the black stripe broadest on 5 

 and very narrow on 11. and 12 ; horn pale blue with an orange 

 patch on each side of the base, and the tubercles and tip black. 

 4th instar. As above, except that the cheek-stripe is white : 

 the body with segments 2 to 4 as above, the rest of the body 

 yellowish-green ; oblique stripes as above, except that the 

 portion of the last oblique stripe on 12 is yellow ; horn bright 

 blue on dorsal surface, green on lateral and ventral surfaces, 

 with black tubercles as above ; the stripe on base of horn 

 red instead of orange ; anal flap edged with yellow and with 

 two large green tubercles covered with short white bristles. 



5th instar. Head about as high as segment 2, semi-ellipticaL 

 dorsal line of vertex strongly impressed ; true clypeus less 

 than half height of head, basal angles rounded and tumid ; 

 apex of false clypeus acute and reaching to one-half length of 

 head ; labrum half as long as clypeus and slightly broader, 



