382 MR. H. J. ELWES ON SOME [May 6, 



Lastly, I received four specimens of this genus, two males and 

 two females, from the Naga Hills, which I describe as follows : — 



Atossa moorei, n. sp. (Plate XXXIV. fig. 2.) 



cJ ? . Eesemble A. nelcinna in general outline, but larger, male 

 77 mm., female 82-90 mm. 



Antennse, S 13 mm., $ 16-1/ mm. 



Body from head to end of abdomen, S 27, $ 31 mm. 



Head and thorax black, with prothorax yellow and tegulse with a 

 broad yellow margin. Abdomen thick, yellow, with seven black 

 bands above .ind five broader ones below ; a single line of black spots 

 on the sides. Breast yellow; antennae black, pectinate in male, 

 minutely serrate in female. 



Colours greyish white, with a broad dark bar on fore wing crossing 

 end of cell, and broad marginal band with paler markings down its 

 centre. Hind wings greyish white, with black edges and a series of 

 blackish streaks or spots between the veins, coalescing into an irregular 

 band across the outer half of the wing. Beneath as above, but the 

 dark markings less distinct. 



Difl'ers from A. nelcinna in the second branch of the subcostal 

 being forked beyond its separation from the main branch (cf. Plate 

 XXXIV. figs. 1. 2). 



Along with these specimens I received a single male, which differs 

 very considerably in markings, and though on account of the appa- 

 rently variable character of the markings in this genus, I should not 

 have been inclined to consider it as more than a variety, yet the 

 neuration is also so different that I am forced to believe it is of a 

 distinct species. The differences will best be appreciated by a com- 

 parison of the accompanying figures, which show that there are only 

 3 instead of 4 branches to the subcostal, whilst the shape of the 

 cell in the fore wing is also different. 



If the same species can vary to this extent in venation as well as in 

 markings, I can only say that hitherto accepted generic characters 

 will have to be entirely revised, because the difference in these two 

 specimens would by many be considered generic rather than specific. 



I propose to call this form 



Atossa nagaensis, n. sp. (Plate XXXIV. fig. 3.) 

 S . Differs from A. moorei in the venation {cf. fig.), in having a 

 black central stripe dividing the yellow collar, and in having the 

 whole of the fore wing pale grey, excepting a band of whitish marks 

 between the veins near the outer margin. 

 Rab. Naga Hills {W. Boherty). 



Genus Herpa, Walk. Cat. Het. ii. p. 442 (1854). 



Herpa subhyalina, var. primulina, n. var. 



tS 2 . Nearly allied to Herpa subhyalina, Moore, Descr. Coll. Atk. 

 i. p. 18 (1879), but smaller and of a much brighter yellow. The 

 costal border of the hind wings not fuliginous as in that species, 

 though the underside of the costa in the fore wing only towards 

 the base is in the male sex darker than the uppcrsidc. The antennK? 



