92 MR. G. T. BETHTJNE-BAKER : A REVISION OF THE 



secondaries the costa is broadly brown and the outer margin narrowly brown, increasing 

 slightly close to the anal angle. The underside is exactly like that of the male, 

 but rather paler and with the pattern rather plainer. This description is taken from 

 Felder's types from the Malacca interior, which the Hon. Walter Rothschild has kindly 

 placed at my disposal. 



The species is very distinct and easily recognisable. I have, however, a specimen 

 from Perak in which the blue is very much more extensive and is of a lustrous azure- 

 blue with a violet tinge ; the underside is of exactly the same tone and pattern. This 

 species is very near ampMmuta Feld. ; it is, however, decidedly brighter and purpler, 

 and its dark margins are but linear, whilst on the underside the pattern is very obscure, 

 the transverse band of the primaries is not fractured, and the same band in the 

 secondaries is different, the four middle spots being practically confluent ; it has also 

 no dark spots or metallic scaling at all at the anal angle. 



The species is evidently very rare ; I have only seen three specimens, viz. the types 

 from Malacca interior and a female from Perak. 



Arhopala asia de Niceville. 

 Arhopala asia de Niceville, Journ. Bombay Nat. Hist. Soc. vol. vii. p. 333. n. 9, pi. H. fig. 16, £ 

 (1892) ; id. Journ. A. S. B. vol. lxiv. pt. 2, p. 470. n. 42G (1895). 



Hah. Quang, Malay Peninsula ; Sumatra, Borneo, and Malacca. 



Expanse, 6 & 2 , 48-50 mm. 



I possess specimens of this species from Labuan, where Waterstradt obtained it in 

 the year 1893 (I believe). The late Dr. Staudinger's collection also has specimens 

 from Borneo. All these are somewhat bluer and darker than the type, though evidently 

 the same species. I notice also that de Niceville's Sumatra specimens are darker than 

 his type from the Malay Peninsula. It is not difficult to separate them from inornata 

 Feld., as its wings are broader and the secondaries decidedly more ample and the brown 

 margins rather wider. Beneath it is more easily separated, as the pattern is much plainer 

 and is very distinctly spotted, whereas in inornata the spots are much more confluent ; 

 this latter feature, of course, mainly refers to the transverse band. 



It is, I imagine, not very rare where it occurs ; I have a fair series before me from 

 Borneo. 



The genitalia are very similar to those of A. catori, but are decidedly larger. 



Arhopala kurzi (Distant). 

 Narathuru kurzi Distant, Rhop. Malay, p. 682. no. 12, pi. xxi. fig. 1, J 1 (1885). 

 Arhopala kurzi de Niceville, Butt. Ind. vol. iii. p. 278 (1890). 



Hab. Malacca ; Penang. 



Expanse, s , 44 mm. 



This is a smaller and slighter insect than asia of de Niceville, and the colour above 



