NEW AND LITTLE-KNOWN BUTTERFLIES 203 



D. mimus, Wood-Mason and de Niceville, from the Nicobar Isles, 

 are offshoots. The outline of the wings is nearly as in D. lutescens. 

 D. dcedalion differs from all these species prominently in the presence 

 of the broad pure white band across both wings, and in other minor 

 details. 



I am indebted to Mr. B. Noble, of the Phayre Museum, Rangoon, 

 for the loan of the unique type example. It was taken at Myitta 

 in January. Major C. H. E. Adamson informs me that he obtained 

 a female in August, 1881, at Tavoy. 



Subfamily Nymph alinje. 



4. NEPTIS NYCTEUS, n. sp., PI. D, Fig. 7, £ . 



Habitat : Sikkim. 



Expanse : $ , $ , 2 6 inches. 



Description : Male. Upperside, both wings black; cilia white, 

 more or less tipped with black at the ends of the veins. Forewing 

 with a large narrow white discoidal streak sullied with ochreous at 

 the edges occupying the posterior half of the discoidal cell ; imme- 

 diately below the apex of this streak is an elongated pure white spot 

 in the second median interspace, and a considerably smaller almost 

 round spot below it in the first median interspace ; this spot is well 

 separated from an oblique spot extending from the middle of the sub- 

 median interspace to the inner margin, and divided by the submedian 

 nervure into two portions ; four small sullied white spots beyond the 

 end of the cell from the costa to the lower discoidal nervule divided 

 by the veins ; beyond these are three subapical spots placed 

 obliquely, the upper one on the costa much the smallest, the middle 

 one below it much larger, its edges sullied with ochreous, the lower- 

 most spot half the size, round, and placed in the upper discoidal in- 

 terspace ; an indistinct pale submarginal line. Hindwing with a 

 broad white discal band from the first subcostal nervule to the middle 

 of the abdominal margin ; a submarginal increasing somewhat 

 macular much sullied whitish band. Underside, both wings highly 

 variegated, having bands of pure white, bluish, yellow, castaneous, 

 and black, so that it is very difficult to describe the coloration in 

 detail, as one colour runs into and blends with those adjoining it. 



