684 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol, 1. 



end of the Mnd -tibiae. This tuft is very lightly attached and easily 

 rubbed off, and I overlooked it when revising the genera of the family. 

 As the butterflies of North- Western Burma, of which little was 

 known a few years ago, have now been fairly well v/orked, a few 

 remarks on their distribution would not be out of place. Under the 

 head North-Western Burma we may include the administrative 

 districts of the Upper Chindwin and Yaw, the North and South Chin 

 Hills, and also the faunistically inseparable regions of the Lushai 

 Hills, the Chittagong Hill Tracts and Manipur ; strictly the Naga Hills 

 should also be included, but they have not been taken into consideration 

 in the following remarks pending their further exploration. 



Our knowledge of the district under consideration is derived almost 

 entirely from the following five papers to which may be added a few 

 records from " The Butterflies of India, Burma, and Ceylon, " and 

 other sources : — 



(1) A Collection of Lepidoptera made at Manipur and on the 

 Borders of Assam by Dr. George Watt. Butler, Ann. 

 and Mag. of Nat. Hist., filth series, vol. xvi, p. 298 

 (1885), in which 114 species are enumerated. 

 ;(2) List of Chin-Lushai Butterflies, de Niceville, Journ. 

 Bomb. Nat. Hist. Soc, vol.v, p. 295 (1890), in which 84 

 species are enumerated. 

 (3) A second list of Chin-Lushai Butterflies, de Niceville, 



zi.j id., p. 383, in which 102 species are enumerated. 

 ;(4) Notes on a Collection of Butterflies made in the Chin- 

 Lushai Expedition of 1889-90, Watson, id., id., 

 vol. vi, 1891, in which 276 species are enumerated. 

 (5) The present paper which enumerates 320 species. 

 It will be seen on reference to the above papers that the collections 

 recorded have been made almost entirely in the dry-season and along 

 beaten tracks, and there is no doubt that, when the country is more 

 opened up and accessible, many additional species will be added to the 

 number already recorded. 



After excluding bad species and doubtful records, the total number 

 of species recorded from the district under consideration amounts to 

 447, which are distributed among 172 genera. These latter are 

 mostly wide-spread throughout the Oriental region and do not call for 



