PANACEA. 311 



horn black with small black tubercles on upper surface, pale 

 green on under surface. 3rd instar. Head pale green, body 

 pale yellowish-green ; dorsal stripe black ; ocellus black above, 

 very pale yellow below ; a white patch touching the upper 

 edge of the ocellus, and some white dots between the ocelli. 

 ±th instar. Horn long, sharply down-curved, slightly flattened 

 laterally, surface smooth ; head and segment 2 bluish-green, 

 rest of body yellowish-green, with a transverse row of white 

 dots on each secondary ring ; ocellus with a reddish longitu- 

 dinal stripe in the yellow portion ; three or four transverse 

 lines, curved backwards, in front of and behind the ocellus ; 

 horn black above, greenish -brown below 7 ; spiracles pale 

 brown. 



5th instar. Shape as in others of the genus ; horn sharply 

 down- curved, slightly flattened laterally, ending in a blunt 

 point. Head dull, body and horn smooth and shining. 



Coloration. — Head bluish-green. Body bright yellowish- 

 green ; dorsal stripe dark brown, narrow^ on segments 2 and 3, 

 then broad to base of horn ; a dark brown subdorsal stripe on 

 2 to 4 ; ocellus : centre black above, brown below^, the brown 

 portion edged narrowly with white all round, the wiiole edged 

 with black ; a curved white band above the ocellus ; the 

 area between the ocelli brown flecked with white ; a brown 

 patch on 6 to 12, narrow^ below' the spiracle, broadening and 

 turning dorsad at the anterior edge of each of the segments. 

 Horn dirty yellow ; legs green ; prolegs green with base and 

 end-segment brown ; anal flap and claspers dirty green. 

 Spiracles brown, central slit white. Length 90 mm. ; breadth 

 10 mm. ; horn 6 mm. 



Pupa. — The same shape as others of the genus. Surface 

 dull. Cremaster broadly triangular, ending in a shaft with 

 tw r o hooks at the tip and two sharp spines on each side of the 

 base. Colour of head, thorax and wing-case bright green ; 

 eye and surrounding area ochreous ; tongue and wing-case 

 speckled with black ; abdomen green with dark brown and 

 ochreous strigae. Spiracles dark brown. Length 50 mm. ; 

 breadth 11 mm. 



Habits. — Food-plant : Arissema curvatum Kunth., family 

 Aroidese. The larva, when small, lies stretched straight out 

 along the midrib on the underside of a leaf, and when 

 alarmed bends the head round to touch the middle of the body. 

 In the last two instar s the larva feeds at night, and during 

 the day lies head downwards along the stem of the food- 

 plant close to the ground, or hides under stones and leaves 

 close by. When alarmed it retracts the head and anterior 

 segments into segments 4 and 5, and twists the body round 

 so as to present the ventral surface of the anterior segments 

 to the source of danger. When further molested it sometimes 



