EHAGASTIS. 469* 



length. 2nd instar. Head pale green, body pale bluish-green ; 

 horn of medium, length, straight, black with base reddish, 

 tip white ; covered with small tubercles. 3rd instar. Head 

 and segments 2 and 3 green, rest of body pale bluish-green 

 with short dark longitudinal stripes ; a narrow dark green 

 dorsal stripe from 2 to base of horn ; a dorso -lateral stripe 

 pale yellow on 2 to 4, pale blue edged above with green from 

 6 to base of horn ; seven dark green oblique stripes ; an 

 ocellus on 5, which is swollen, pupil dark blue in which are one 

 or two white spots, edged broadly with white and then narrowly 

 with dark blue ; horn long, curved slightly upwards, basal 

 third red, middle third black, end third white, with black 

 tubercles. 



4th instar. A green and a dark-coloured form. Green 

 form : head and body bluish-green, body with short alternate 

 pale and dark longitudinal stripes across the secondary 

 rings ; other stripes as in 3rd instar ; ocellus with pupil 

 dark blue in which are one large and several small white dots, 

 this edged with green, the whole edged narrowly with white in 

 front, yellow elsewhere ; horn with basal two -thirds reddish, 

 distal third white. In the dark- coloured form the head is 

 reddish -brown, body a beautiful crimson ; dorso-lateral 

 stripe pale crimson, with a white dot above it on each secondary 

 ring, and edged above with dark crimson ; ocellus with 

 pupil dark greenish-brown with white dots, edged narrowly 

 with white above, yellow elsewhere, the whole edged narrowly 

 with dark brown. 



5th instar. Surface of head dull. Body smooth, with a velvety 

 texture ; horn rather short, slightly down- curved, tapering 

 evenly to a point ; surface covered with small tubercles. 



Coloration. — Head pale brown. Body very dark brown 

 above the dorso-lateral stripe, pale brown below it, without 

 the short longitudinal stripes of the earlier instars ; a narrow 

 black dorsal stripe on segments 2 to 4 and from 6 to base of 

 horn ; a pale yellowish-brown dorso-lateral stripe from 2 to 

 base of horn, broken by the ocellus ; just below the upper 

 edge of this stripe a round white dot on each secondary ring 

 of segments 5 to 12 ; ocellus on 5 round, the large pupil dark 

 brown edged narrowly with white behind and reddish-brown 

 elsewhere, the whole edged narrowly with black ; oblique 

 stripes on 5 to 11 formed of brown reticulations. Horn dark 

 brown ; legs reddish. Spiracles pale brown edged with black. 

 Length 70 mm. ; breadth 11 mm. ; horn 3 mm. 



Pupa. — Tongue-sheath not much projecting. Surface dull 

 and slightly rugose. Cremaster wedge-shaped, the sides 

 inclined slightly inwards, the tip broadly rounded and bearing 

 two conical, polished shafts, widely separated and nearly 

 parallel with each other, each shaft dividing near tip into 



