664 JOURNAL, BOMBAY NATURAL IJISTORY SOCIETY. Vol. XIX. 



Soon the larva becomes green, minutely spotted with yellow after feeding on 

 the green leaf for sometime ; the white tubercles become light green as well as 

 the others ; there is no sign of the dorsal crescent mark dorsally on segment 

 7. The size of larva is 5 mm. growing to 10 mm. in seven days. After the 

 first day it takes up a position in the centre of the leaf near the point on the 

 upperside, covering the place with slight carpet of silk-web. 



In the second stage the length and breadth are the same at the beginning : 

 10 mm. by 2 mm. ; the head is much bigger of course with the horns more 

 spreading, the colour being light brown ; with the hinder border of anal 

 segment dark red-brown ; the tail points are comparatively shorter and more 

 divergent ; the anal segment yellow along its extreme hinder border (also at 

 end of first stage), the points tipped dark. The colour of the body is green 

 with four transverse rows of minute tubercles separated, each row from the 

 next, by a thin, depressed line the tubercles as at end of last stage ; the charac- 

 teristic dorsal mark on segment 7 appears but is very minute and hardly visible 

 in some larvae ; the tubercles and dorsal mark are whitish, the latter with a 

 yellow tinge. The larva now sits with its front half raised from the surface it 

 rests on, the true legs bunched. The size of the larva at end of this stage is 

 15mm. or 16mm. by 3mm. 



The colour some time after the next change of skin is a fine dark green, 

 the dorsal mark on segment 7 trapeze-shaped, broader than long, with a 

 narrow, short, continuation forwards in centre ; light yellow in colour with the 

 front margined black ; the head light brown-pink, bases of middle horns 

 darker, anal segment shortly and broadly fish-tail shaped, the hinder margin, 

 however, straight between the diverging points, the segment margined yellow 

 at end with the points reddish-brown ; a fine yellow subspiracular line divid- 

 ing the dark green of dorsum from the greyish ventrum from segment 5 to 

 anal segment. 



In the fourth stage the dorsal mark on segment 7 is as in the mature larva ; 

 crescent-shaped, yellow, the ends of it pink set with little opalescent tubercles, 

 bordered in front by a thick black line. Head green with a yellow border 

 from base of lower horns round the jaws, the horns dark red-brown, covered 

 with little yellow tubercles ; face smooth without tubercles ; the hinder 

 margin of head dark red-brown. The anal segment is now flat dorsally, the 

 points short, stout, blunt and divergent : trapeze-shaped, the longer margin 

 being the hinder one. There is a yellow line from each tail-point to segment 

 5, subspiracular, dividing the rich dark-green of the upper parts from the de- 

 licate bluish-grey of the ventrum ; the tail-points are pinkish-brown at ends 

 the hinder border of anal segment yellow ; there is a narrow jet black collar 

 on front margin of segment 2. The size at commencement of this stage was 

 22mm. by 4'5nim, 



At the end of the final or 5th stage the larva has the same colour as in the 

 last ; the dorsal mark on segment 7 also the same, yellow-greenish in colour, 

 truncated at tips obliquely forward, the boms of the crescent touching the 



