818 Mr. H. J. Elwes’ catalogue of the 
I think there can be but little doubt that deliades 
is the female of visrava; the pattern of both is the same, 
and only one sex is known of either. It is extremely 
rare in Sikkim, where Maller procured a single female 
in June. In Bhotan, however, it is commoner, as Mr. 
Knyvett’s collectors procured several males on June 20th 
in the hills two or three marches north of Buxa. 
50. Lethe tristigmata. (Pl. VIIL., fig. 1). 
Lethe tristigmata, Elwes, P. Z.8., 1887, p. 444. 
Mr. Moller and myself both procured this species in 
1886, and it had been already described by Mr. de Nicé- 
ville; but this gentleman, in order to avoid its being 
published twice over, gave me permission to use his 
description. I found the males only in July on the 
Singalelah range from about 9 to 10,000 ft. elevation in 
open spots in the dense bamboo thicket. Many of them 
were then worn, and Moller’s native collectors found it 
fresh in June. The insect is not so gregarious in its 
habits as some of the other Lethes found with it, and is 
quite distinct from anything yet known. ‘The female is 
as yet undiscovered, though we have made numerous 
attempts to find it at different seasons in the same spots 
where the males were taken. 
51. Zophoessa sura. 
Zophoessa sura, Doubl. Hew., G.D.L., ii, p. 362, 
t. lxi; Butt. Ind., 1., p. 164. 
Not uncommon in the forest from about 8000 ft. from 
the end of June on until November. The males are seen 
singly, or in company with other Satyrine, sitting on the 
path or low herbage, and if disturbed generally fly up 
and settle on the trunk of a tree, where they are difficult 
to distinguish among the dark moss. I took males in 
June and July on Sinchul: females are rarer and fly 
but little, though sometimes taken on the bare top of 
the hill at Sinchul and Jellapahar. I found it also in 
the Khasia Hills, near Cherra Punji, at 4500 ft., in the 
end of September. 
