270 sphingidje. 



which the main hairs are hardly traceable ; base of horn 

 smooth, rest tuber culate ; colour bright green, with an 

 indication of an ocellus on segment 4 and a bluish-grey dorso- 

 lateral stripe from 6 to base of horn ; horn black, with a basal 

 lateral patch yellow. 3rd instar. Similar in shape, surface 

 and colouring to the full-fed larva, except that the horn is 

 shining, basal half thick, then thinning suddenly to a long, 

 translucent point ; colour of horn green, with a black ring at 

 the point where it becomes thin. 4th instar. Similar in all 

 respects to the full-fed larva. 



5th instar. Head small, rather square, with rounded corners ; 

 true clypeus not quite one-half length of head, apex acute ; 

 false clypeus forming a wide arch over apex of true clypeus ; 

 labrum one-third length of clypeus ; ligula longer but narrower 

 than labrum, the lobes narrow, eyes 1 to 4 in a wide curve, 



2 and 3 closer together than 1 is to 2 and 3 is to 4; 

 3, 4 and 6 in a straight line ; 5 at the apex of an 

 isosceles triangle formed by 4, 5 and 6 ; 2 very small, 



3 and 4 larger than 1, 5 and (3. Surface of head moderately 

 shining, very shallowly corrugate. Body with segment 2 

 of equal diameter to head, the segments then increasing 

 rapidly in diameter to 5 and more gradually to 8, then de- 

 creasing slightly to 12. Horn short and stout, sausage-shaped, 

 bent sharply downwards in middle, narrowing suddenly to 

 a short, sharp point. Surface of body dull and smooth ; 

 horn polished and tuber culate. 



Coloration. — Green form (PI. Ill, fig. 10) : head dark 

 glaucous-green ; labrum shining reddish-brown ; ligula dark 

 reddish-brown ; eyes dark brown. Body : segment 2 soiled 

 green, segments 3, 4, 13 and 14 bright yellow, rest of 

 body bluish-green suffused with glaucous except on venter ; 

 a large subdorsal ocellus on front margin of 4, centre 

 white, shading to pale blue and then to dark blue ; some 

 white spots ringed with dark green subdorsally on 4 and 

 5 : a broad white dorso-lateral stripe from middle of 5 

 to base of horn, edged above with dark green and below 

 by mauve on the median segments ; above and below this 

 stripe, on the median segments, white spots ringed with 

 dark green above and with mauve below. Horn and its 

 tubercles bright orange ; legs purple, prolegs dark green. 

 Spiracles oval, dark green, with the central slit velvety black 

 edged narrowly with white. 



In another form of the larva the ground-colour of head 

 and body ochreous, with fuscous-grey oblique lateral patches 

 on segments 6 to 12 ; ocellus darker than in green form and 

 ringed with black ; true legs black. There are also forms 

 with intermediate colouring. Length 90 mm. or more ; 

 breadth 15 mm. ; horn 6 mm. 



