BUTTERFLIES FROM THE CHIN HILLS. 649 



forewing will distinguish the present species from all the others of the 

 group except the first eight ns enumerated by the above-named writers. 

 From Y. motscliulshji it may be distinguished by its smaller size and 

 by the absence of the dark submarginal lines on the upperside ; from 

 Y. imitans and Y. ohscura by the regular striation of the underside ; 

 from Y. multistriata by the presence of the ocellus on the upperside 

 of the forewing ; and from Y. prcenuhila and Y. perfecta by the 

 ocellar space on the underside of the forewing not being defined. 



Nearest to Y. sordida and Y. lycus. From the former it differs on 

 the underside in the subapical ocellus on the hindwing being consider- 

 ably smaller than that on the forewing, and also in the fine even 

 striation ; from Y. lycus it differs in the entirely different tone of the 

 underside, which in that species is yellowish-brown, and in Y. lycoides 

 greyish-white with occasionally the very faintest tinge of ochreous. 

 In Y. lycus also the discoidal cell and basal portions of the median 

 interspaces on the underside of the forewing are almost without 

 striations, while in Y. lycoides the median interspaces are striated 

 throughout, and the cell almost to the base of the wing. 



Described from nine males and one female taken in the North Chin 

 Hills during May at an elevation of from 3,500 to 5,500 feet. 



Two males present slight variations. In one there is an additional 

 small ocellus on both sides of the forewing in the lower median 

 interspace, and in the other the ocellus on the upperside of the 

 forewing is without the usual two silvery pupils, and there is no ocellus 

 on the upperside of the hindwing. 



48. Ypthibia watsonii, Moore, 



Tery numerous males and females of the rainy-season form in April 

 and May, and an intermediate seasonal form in April, all from Kalewa, 

 in the Upper Chindwin District ; also a single male of the dry-season 

 form from 1,500 feet in May. 



I am inclined to think that there are two species combined under 

 this name. The species was named by Moore from some specimens of 

 the dry-season form obtained by me in the Karen Hills, near Toungooj 

 and Elwes, in his revision of Ypthhna, gives a description of the dry- 

 season form from specimens collected by Doherty in the same locality. 

 Moore in " Lepidoptera Indiea," part 16, which appeared almost 

 simultaneously with Elwes' paper, describes both seasonal forms and 



