AG ONYX. 317 



russet-brown or yellow, shaded with pale green in fresh 

 specimens. Expanse : $ 54-62 mm., $ 64 mm. 



$. Harpe (fig. 80 B) ending in a conical process which bears 

 one tooth on the underside and is finely granulose beneath 

 proximally. 



Hab. E. Himalayas (Khasi Hills), S. India, Burma and 

 Ceylon to Malaya. We have bred the subspecies in S. India 

 (Kanara District), where the larva is common in damp forests 

 in the rainy season, from sea-level to 6,000 feet. 



Larva : — 



Final instar. Resembles a Marumba larva in shape. Head 

 large, semi-elliptical, dorsal line of vertex slightly depressed ; 

 true clypeus less than half length of head, apex acute, basal 

 angles rounded ; no false clypeus ; labrum three-quarters 

 length of clypeus, tapering sharply frontad ; ligula as long as 

 labrum, long kidney-shaped, sinus very deep; eyes 1 to 5 

 in a semicircle, 1, 2 and 3 equidistant, 4 and 5 slightly more 

 widely spaced, 6 below 5, nearly twice as far from 4 as 4 is 

 from 3. Surface of head shining and covered with minute 

 hairs. Body smooth and dull. Segment 2 not as high as 

 head, and the segments increasing gently in diameter to 5, 

 then decreasing gently to 12. A very fine dorso-lateral, supra- 

 spiracular and subspiracular hair, each rising from a minute 

 tubercle. Horn long, straight, tapering evenly to a blunt 

 point, rising from a fleshy cone. 



Coloration. — Head grass-green ; a narrow black stripe 

 from vertex to base of antenna, crossing the eyes, which are 

 whitish with black pupils, and separating face from cheek; 

 on the inner side of this stripe a slightly broader white stripe ; 

 ligula fuscous-rusty colour, black round the sinus ; basal 

 segment of antenna yellow, other segments white ; mandible 

 pale rusty at base, rest black. Body bright grass-green dotted 

 with darker green, and tinged with yellowish below the dorso- 

 lateral line, somewhat glaucous above it ; a dark green dorsal 

 stripe from front margin of segment 3 to base of horn, darker 

 at the segment margins ; a narrow, pale vinous-brown dorso- 

 lateral stripe starting at front margin of 3 and running to 

 base of horn, edged narrowly with yellow below, most strongly 

 on segments 10 to 12. Horn plumbeous-fuscous, base paler 

 and tip yellowish-green ; true legs dark plumbeous, base and 

 inner faces of basal segments deep orange ; prolegs and claspers 

 fuscous. Spiracles narrowly oval, flush, white with a broad, 

 brown, transverse band across middle. Length 65 mm. ; 

 breadth 8 mm. ; horn 9 mm. 



Pupa. — Front of head with a prominent rounded boss on 

 each side of a wide, deeply impressed dorsal line ; a similar 

 boss inside each eye ; the dorsal line of segment 2 rises at 



