MARUMBA. 177 



J. Tenth tergite (fig. 35 A) deeply divided into two slender, 

 pointed lobes ; sternite triangular, rather broad, not acute, 

 slightty curved upwards at apex, covered with minute granules. 

 -Clasper (fig. 35 B) differing essentially from that of the allied 

 species in the dorso-apical lobe being pointed and curved 

 upwards and in the ventral lobe being broad and rounded ; 

 harpe not so strongly curved as in sperchius and dyras, not 

 denticulate, reaching nearer to end of clasper. 



9- Vaginal plate (fig. 35 C) with a long, truncate or slightly 

 sinuate process in front of the orifice, which process becomes 

 visible on removal of some scales from the apex of the seventh 

 sternite ; at each side stands a dentate flap. 



Hab. E. Himalayas (Sikkim) and China. Mell has bred 

 the form ochrea in S. China. 



Egg. — Broadly ovoid, the surface smooth and shining, colour 

 ivory-yellow. Length 2-75 to 3 mm. ; breadth 2-5 mm. : 

 height 2 mm. 



Larva : — 



Final instar. Very similar in shape to that of M. dyras ; 

 the horn long, straight, the breadth greater than the height 

 in a cross-section. Surface of head and body dull ; head with 

 a line of tubercles separating the face from the cheeks ; trans- 

 verse rows of small tubercles on the secondary rings ; larger 

 pointed tubercles along the oblique stripes : horn covered with 

 small tubercles, and small tubercles along the edge of the anal 

 flap and claspers. 



Coloration. — Head pale green, with the line of tubercles 

 between the face and cheeks obscurely white ; a dark green 

 dorsal stripe from the vertex to the nape. Body pale green ; 

 a dark green dorsal stripe to the hind margin of segment 4 ; 

 the oblique stripes white, sometimes edged narrowly by red or 

 yellow, running across three segments ; tubercles on the 

 oblique stripes orange. Horn blue-green, the tubercles on 

 the basal half paler and those on the distal half darker than 

 the body colour ; the tubercles edging the anal flap and claspers 

 paler than the body colour ; true legs dull red banded with dull 

 brown, and sometimes with a dull brown mark at the base ; 

 prolegs and clasper pale green. Spiracles oval, the central 

 slit pale in colour, dilated at the top and bottom and with 

 a red-brown band on each side of it. Length 68 mm. ; 

 breadth 11 mm. ; head 8-5 mm. high by 7 mm. broad. 



Pupa. — Similar in shape, surface and colouring to other 

 pupae of the genus ; the cremaster large, tapering gently to 

 a simple point, rugose. Length 50 mm. ; breadth 15 mm. 



Habits. — The larva feeds on Litssea elongata Hook., Phoebe 

 Nees, and Machilus ichangensis Rehd. & Wils. in China. 

 The colour becomes paler and somewhat translucent-looking 



vol. v. n 



