418 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XL 



189. M. sitiene, Wlk. 

 Sikhim, October. I have only obtained one specimen of this 

 species. The upperside is most like M. gilia, but the head, thorax 

 and abdomen are olive ; the underside is like that of M. belts. 

 191. M. walkeri, Butl. 

 Sikhim, 3,000 to 7,000 feet. It is found in April and throughout 

 the rains. I have often taken it at Tukvar at flowers in the middle of 

 the day. The hindwing is often almost completely fuscous, with the 

 exception of the inner margin ; the pectus is white below. 



194. IL insipida, Butl. 



Sikhim and Bhutan, up to 4,000 feet. I have reared this species 

 from larvae, and the perfect insect emerged in October. 



The larva is brown minutely speckled with paler dorsally ; a dorsal 

 dark line throughout ; the fourth to tenth somites each with an oblique 

 lateral indistinct line ; a flesh-coloured sublateral line unbroken on the 

 thoracial somites but broken on all the others converging to the base 

 of the horn ; horn black tipped with flesh-colour. There is also a 

 green form of larva which has the flesh-coloured markings replaced by 

 yellow ones, and the minute specks on the back white. The young larvse 

 have the yellow markings replaced by white ones. The pupa, with 

 proboscis in a projecting beak-like cover, is brownish-grey, with a dark 

 line on the back of the thorax and head, and another down the front. 

 I agree with Mr. Elwes in thinking that this species is probably 

 not separable from M. gilia. 



195. M. gilia, Herr.-Sch'aff. 



Sikhim and Bhutan. It occurs with the last, from which it is pos- 

 sibly not distinct. I cannot separate the two on the characters given 

 by Hampson. It is found commonly along the banks of roads at 2,000 

 to 5,000 feet, and may be seen during the beat of the day in June and 

 July as well as at dusk. 



197. M. imperator, Butl. 



Sikhim. I have taken this species on two occasions at 5,000 feet 

 on the Tukvar spur (Rungeet valley). It is well-marked and easily 

 recognisable ; the ante- and postmedial dark patches are separated by 

 a conspicuous pale erect band. 



