124 BUTTERFLIES. 



Kurseong through the forest, but is rare to the east of the Tista river. 

 It flies in all weathers, and settles on ordure on the roads. 



49. Lethe (Siuchula) vaivarta, Doherty. 



Originally described from Kumaon. Mr. Otto MuUer's collectors 

 brought in a pair of specimens in August from Bhutan. 



50. Lethe (Sinchula) nicetella, de Niceville. 



Found at high elevations only, 7,000 to 8,000 feet; where it occurs 

 it is found in thousands. This is one of the few species which become 

 rarer to the east of Darjeeling. 



5L Lethe (Sinchula) sideeea, Marshall. 



A very rare species, recorded by H. J. Elwes from Tendong, 

 native Sikhim, 7,000 feet, in the rainy season and November, and by 

 Mr. Dudgeon from Baling. It is found also at Moupin in Western 

 China. 



52. Lethe (Sinchula) maitrya, de Niceville. 



Occurs in enormous numbers from 9,000 to 12,000 feet on the 

 Singalela range in July and August. Elwes records it also from 

 Bhutan, and it was first discovered in the Western Himalayas. 



53. Lethe (Sinchula) nicetas, Hewitson. 



Far rarer than L. nicetella, de Niceville, and is found at 7,000 to 

 8,000 feet in the rains. Occurs less rarely on the Baling hills at the 

 same elevation in May and June. 



54. Lethe (Sinchula) visrava, Moore. 



Excessively rare in Sikhim, more common to the eastwards in 

 Bhutan. It occurs at Pankasarri in the Daling division. I have only 

 seen one female, which was in Otto Moller's collection; that sex was 

 described by Hewitson as a distinct species under the name of " Dehis " 

 deliades. 



55. Lethe (Kerrata) tristigmata, Elwes. 



Very rare, and occurs on the Singalela range at 9,000 to 10,000 

 feet in June and July. 



56. Lethe (Putlia) baladeva, Moore. 



Rather rare. Elwes records it from Tonglo in July, Ghoompahar 

 in June, and Tonglo and Tendong in August. It swarms in Baling 

 at 8,000 feet. I do not think the genus Zophoessa, Boubleday and 

 Hewitson, of which Z. sura, Boubleday and Hewitson, is the type, 

 can be maintained as distinct from Lethe. Until recently, baladeva 

 has always been placed under that genus. 



57. Lethe (Putlia) eamadeva, de Niceville. 



Very rare ; occurs at Tonglo in July and August, and in Bhutan 

 in June. 



