1887.] LEPIDOPTERA FROM SIKKIM. 447 



double-lined bar at the end of the cell aad an indistiact outer baud 

 near the edge. Hind wing with similar bands, of which the first 

 extends in the usual broken W to the inner margin, and in additioa 

 a short band of three blackish spots within the discal bar ; at the 

 anal angle two blue spots, of which the outer is half black. Antennae 

 ringed black and white, with a fuscous tip to the club. Body above 

 black, with grey hairs ; pale grey beneath. 



Expanse 1'4 inch. 



Described from a single perfectly fresh female, which I took on 

 May 27 in the same place as Chilades ponds. Though I visited 

 the spot on several occasions, I never saw another, and the male 

 will probably be found earlier in the season. 



Notwithstanding the very numerous species of this group of 

 Lycaenidse which have been described from Sikkim, I think this 

 is so well distinguished by the pattern of the underside that it 

 cannot be the female of any known species. 



Saturnia ROYi, n. sp. 



Male. Above deep chocolate-brown, with a darker band running from 

 near the apex parallel to the margin of fore and hind wings. The upper 

 half of the hind wings grey, with an oc?llus in the centre composed of 

 a small grey pupil, a broad ring of black, a narrow ring of grey, and 

 another narrow black ring, the whole being surrounded by a dark 

 circle which coalesces with the band crossing the wing. In the 

 fore wing is a round membranous but not transparent patch at the 

 end of the cell about two lines in diameter ; close to the apex is a 

 triangular patch of grey scales, a few of which are continued in a 

 sinuous line across the fore wing parallel to the margin. 



Beneath, the whole surface is chocolate-brown, with the band as 

 above, powdered throughout with grey scales, which take the form 

 of a downy fur towards the inner part and are longest on the discal 

 area. The pupil only of the ocellus shows on the under surface, and 

 the margin is free from grey powdering. Antennae broadly pecti- 

 nated. Thorax covered with long chocolate hair, yellowish behind 

 the head. Breast covered with long rusty fur ; tarsi grey outside. 



Expanse nearly 5 inches. 



Described from a fresh specimen, one of three which were 

 taken on Tonglo near Darjeeling, at an elevation of 10,000 feet, by 

 Babu Dewan Roy, a Nepalese in the service of the Forest Depart- 

 ment, after whom I name this beautiful and distinct species, as a 

 recognition of the interest he has shown in the natural history of his 

 district, and of the great assistance he has rendered me in collecting 

 insects there. 



30* 



