ON NEW AND LITTLE-KNOWN BUTTERFLIES. 281 



the two posterior ones separated, out of the line with the others, 

 shifted inwards towards the base of the wing. Hindwing with the 

 usual basal, discoidal, and discal markings ; a prominent round black 

 spot on the margin in the first median interspace. 



This is a very distinct species, though it is difficult in words to make 

 plain the points of difference between it and its nearest allies. It is 

 perhaps nearest to N. noreia, Felder = JV*. ardates, Moore, tailed 

 form, from which it differs in its larger size (in size it is intermediate 

 between JV. noreia and N. atrata), in the different shade of violet-blue 

 of the upperside, the colour of the ground of the underside, the reduced 

 prominence of all the markings, and the subanal black spot to the 

 hindwing lacking the turquoise-blue line of scales outwardly placed 

 upon it; and the anterior outer orange line, found in JST, noreia. 



Mr. H. Fruhstorfer has sent me a single male specimen of what 

 appears to me to be this species from Mount Gede, West Java, 4,000 

 feet, taken in August, 1892. It differs from the specimens above 

 described from Sumatra in having no tail, and the markings of the 

 underside are a little less prominent. At the extreme anal angle of 

 the hindwing on the underside is a most minute black dot bearing a 

 few turquoise-blue scales. This dot is just traceable in some of my 

 specimens of this species from Sumatra, but they bear no blue scales. 



Described from four male specimens from North-East Sumatra in my 

 own and numerous others in Dr. Martin's collection, and one male 

 from East Java. 



17. ARHOPALA ABOE, n. sp., PL 0, Fig. 26, $. 



Habitat : Daunat Range, Tenasserim, Burma. 



Expanse: $, 1*9 inches. 



Description : Male. Upperside, loth wings rich shining purple ; 

 no outer black margin ; cilia black. Underside, both toings glossy 

 lilac-brown, all the spots darker, dull reddish-brown without purple 

 gloss, outwardly defined by a fine pale violet line. Fore wing with the 

 inner margin broadly up to the median nervure and first median 

 nervule whitish ; a small oval spot towards the base, a larger 

 oval one at the middle, and a still larger quadrate one closing 

 the discoidal cell ; a rather large spot in the submedian interspace 



