74 SPHINGIDiE. 



Larva : — 



1st instar. Very pale green, becoming darker after feeding ;. 

 horn straight, black, bifid ; the anal flap has a small fleshy 

 protuberance on dorsum. 2nd instar. Green with faint 

 oblique stripes ; horn black with a broad white subterminal 

 band, tip bifid. 3rd instar. Colouring similar to that hi 2nd 

 instar but oblique stripes more strongly marked ; a pro- 

 tuberance on the dorsum of segment 3. 4th instar. Shape and 

 colouring as in the full-fed larva. 



5th instar. Head broadly semi-elliptical in shape, large and 

 powerful ; true clypeus one -third length of head ; false 

 clypeus a wide arch over apex of true clypeus, reaching to 

 one-half length of head ; labrum three-quarters length of 

 clypeus, hind margin gently curved backwards, front margin 

 curved, emarginate and half as long as hind margin ; ligula 

 in the form of two narrow ovals joined proximally and diver- 

 ging distally, hind margin as long as front margin of labrum ;. 

 eyes 1 to 4 about one eye -diameter apart, 6 about three 

 diameters from 4, 5 three diameters from 4 and four diameters 

 from 6 ; the line joining 1 and 2 at right angles to the straight 

 line joining 3, 4 and 6 ; eye 3 slightly larger than the rest. 

 Surface of head moderately shining, with large, low, glassy 

 tubercles interspaced with minute tubercles ; labrum with 

 small tubercles on its lateral edges. Body tapering slightly 

 frontad from segment 5 ; the protuberance on 3 a fleshy, 

 triangular, truncated pyramid 3 mm. high, flattened in front 

 and behind. Horn rising from a tumidity, straight to near 

 tip, where it is slightly up-curved, tip narrowly and minutely 

 bifid. Surface of body smooth and dull ; a line of small 

 tubercles starting subdorsally at the front margin of 2, running 

 to the top of the protuberance on 3 and thence to the hind 

 margin of 4 ; the subspiracular hair on segments 7 to 11 

 composed of about nine short stems, each of which branches 

 into a much longer fork, the whole spread horizontally into 

 a fan ; on 5, 6 and 12 there are only two or three branched 

 stems, on 2, 3, 4, 13 and 14 the subspiracular hair is simple ; 

 horn covered with small glassy tubercles. 



Colour of head dark green, the tubercles forming an 

 obscurely grey mottling ; labrum and ligula yellow ; basal 

 segment of antenna yellow, other segments pale pink ; 

 mandible whitish with the edge narrowly and the tip 

 broadly black. Body bright green dorsally, dull green 

 speckled with pale yellow dots laterally ; the line of tubercles 

 on segments 2 to 4 yellow ; a glaucous white dorsal stripe 

 on 6 to 11 ; oblique stripes on the same segments, the last 

 running across 12 to base of horn ; these stripes may be 

 broad, indistinct and bluish-grey in colour, becoming narrow 

 and white near the hind margin of the adjoining segment 



