200 SPHINGIDiE. 



any other Ambulicine species, the most proximal line of other 

 AMBULiciNiE standing always distally of base of M 2 . Fore 

 tibia with a long thorn at apex. Expanse : 114 mm. 



$. Tenth tergite (fig. 45 A) broad, flat, sinuate, the two 

 lobes pointed, their tips curved downwards, or longer and 

 narrower, the division into two prongs indicated by an incision ;. 

 tenth sternite very broad and short, transverse, the edge 

 incrassate, rounded. Clasper (fig. 45 B) without friction- 

 scales, apical half narrower than basal half, also less chitinized ; 

 harpe nearly concealed in the deep cavity of the clasper ; 

 it ends in two strong, long, conical processes which point 

 upwards. Penis- sheath (fig. 45 C) armed with a small 

 subapical, denticulate, transverse ridge which is higher at 

 the left side ; penis-funnel with a curved, pointed, flattened 

 process on each side. 



§. Around orifice a moderately raised half -ring which is open 

 posteriorly, the segment membranaceous in front of the half- 

 ring and at sides, and wrinkled. 



Hab. E. Himalayas (Sikkim). Rare. It has been bred by 

 Fellowes-Manson, and his description is given below : — 



" Larva green, covered with whitish- coloured granules, 

 a darker green stripe on dorsal surface together with a series 

 of short orange-coloured spines from head to horn, on segments 

 2 to 5 is a subdorsal yellowish streak, a small white spot 

 on segment 5 edged with black and with a disc of yellow near 

 it, oblique lateral violet stripes edged with pale greenish- 

 yellow below on segments 5 to II ; anal flap covered with 

 orange -coloured spines, a white streak on each side of head 

 which is green, triangular, and produced upwards ; horn long, 

 nearly straight, rough, green with the tip black ; legs and 

 claspers pale yellow. Length 80 mm." (Journ. Bombay Nat. 

 Hist. Soc. xvii, 1906, p. 241). 



Pupa not sufficiently described. 



Habits. — Food-plant : Acer carwpbelli Hook. f. & T., family 

 Sapindacese. 



52. Rhodoprasina callantha Jord. (Figs. 48, & 47, ?; PI. Ill, 



fig. 7, larva; PI. X, fig. 1, larva; PI. XIV, fig. 1, larva). 



Rhodoprasina callantha, Jordan, 1929, p. 86 (Assam ; Shillong,. 



Imago. — <£$. Antenna pink, thinner than in B. floralis. 

 the segments less deeply constricted ; body and wings deeper 

 coloured than in floralis, fore wing less dentate. 



$. Body olive-green, somewhat brighter below, particularly 

 on abdomen, which has a yellowish tint. Tibiae and tarsi 

 more or less blackish, relieved with grey on upper side ; fore 

 tibia without terminal claw : hind tibia with a minute ante- 



