MACROGLOSSUM. 357 



and basal half of abdomen of the same grey colour as fore 

 wing ; posterior abdominal tergites not much darker, except 

 a basal spot on each side ; three orange side -patches on seg- 

 ments 2 to 4, large, confluent ; first tergite and metanotum 

 also tawny at side ; base of seventh white, the belt interrupted 

 in middle by a black spot. Fore wing with two antemedian 

 and two discal lines distinct, the interspaces not filled up vdth 

 black, the two discal lines curved strongly costad at R 2 , 

 concave between R 3 and hind margin. Hind wing not darker 

 at base than in middle, tawny-ferruginous, gradually becoming 

 brown distally, the brown border not sharply defined. Under- 

 side of palpus and breast almost pure white, legs included, 

 except hind tarsus ; sides of breast and legs shaded or speckled 

 with brown scales ; abdomen drab, side-tuft of segment 3 

 white, of 6 brownish -black with buff tip ; wings dull ochraceous- 

 tawny shaded with drab, bases more ferruginous, abdominal 

 area of hind wing pale yellow at base, ochraceous rufous 

 distally ; lines not prominent. Expanse : $ 38-52 mm., 

 $ 54 mm. The variation in size is considerable, and the 

 extreme sizes are more common than the intermediate sizes. 



J. Tenth tergite slightly dilated before the end, which is 

 pointed ; sternite flattened, thin, sides oblique before end. 

 Harpe (fig. 90 E) elongate, straight, simple ; clasper without 

 friction-scales. Penis-sheath (fig. 90 F) : dentate process 

 pointed, long, oblique in position, its base projecting distad, 

 no spines at or near base ; internal rod obtuse, dentate at 

 one edge. 



Hab. W. and E. Himalayas, S. India, Ceylon and Burma, 

 extending to Malaya and Papuasia. We have bred it in 

 S. India, where it is common in open upland country with 

 small rainfall, rare in low forest country 



Egg. — Broadly ovoid ; surface shining and smooth to the 

 naked eye, but under the microscope seen to be very shallowly 

 pitted ; colour whitish when first laid, later pale honey- 

 yellow. 



Larva : — 



1st instar. Head round, large ; body cylindrical ; horn 

 straight, cylindrical, tip bluntly rounded ; head, body and 

 horn covered with short hairs, and a single short hair at tip 

 of horn ; colour pale honey-yellow, eyes and horn black. 

 2nd instar. Little change. 3rd instar. Horn short, straight, 

 tip shortly bifid, surface shining and covered with small 

 tubercles ; small tubercles on segment 2 and anal flap ; head, 

 true legs, prolegs and claspers green ; body pale grass -green 

 dotted with white ; a broad, pale yellow, dor so -lateral stripe 

 from 2 to base of horn ; horn black above, green below. 

 4:th instar. Horn long, curved slightly first down and then up, 

 tip shortly bifid ; surface of head, body and horn shining, 



