72 ME. G-. T. BETHTJNE-BAKER : A EEVISION OF THE 



spot large, velvety black, and a deep black spot beyond the tail, well covered, as is also 

 the space between the two spots, with bright pale bluish-metallic scales, which likewise 

 edge the lobe-spot above. 



$ . Upperside : both wings violet-blue ; primaries with very broad black costa and 

 outer margin, and yet broader apical area ; secondaries with very broad margins all 

 round. Underside like that of the male, except that the ground-colour is rather paler. 



One specimen from Mindoro has the costa and outer margin of the primaries 

 decidedly narrower than in the type. 



This species comes between adatha Hew. and silhetensis Hew. ; on the upperside it has 

 wider borders than the former but rather narrower than the latter. In general pattern 

 of the underside it is more like adatha, but has the spots nearly half the size and very- 

 much darker, thus forming a decided contrast with the ground-colours, and the 

 transverse band of the secondaries is quite different, this being caused by the isolation 

 of the upper two spots. The spots are also decidedly smaller than in silhetensis ; there 

 is also no spot on the costa of the primaries, and the transverse bands in both wings are 

 not dislocated as they are in that species. In the genitalia the clasps have conical 

 extremities. 



Arhopala silhetensis (Hewitson). 



Amblypodia silhetensis Hewitson, Cat. Lycsenidse B.M. p. 7. n. 31, pi. iv. figs. 27, 28, £ (1862). 



Arhopala silhetensis de Niceville, Butt. Ind. vol. iii. p. 237. n. 788 (1890). 



Arhopala arama de Niceville, Journ. Bombay Nat. Hist. Soc. vol. ix. p. 285. n. 20 (1895). 



Hob. Sylhet ; Sikkim Dooars, Sikkim ; Burma (? Cochin China). 



Expanse, d & $ , 49-54 mm. 



d . Upperside : both wings deep purplish blue ; primaries with the costa narrowly 

 and the posterior margin broader black ; secondaries with the costa very broadly and 

 the posterior margin less broadly, but increasing at the anal angle, black ; abdominal fold 

 very broadly brown ; lobe well developed ; tail blackish, tipped with white. Underside : 

 both wings dull brown, with darker spots bordered with blackish with an outer 

 encircling of white. Primaries with three increasing cell-spots ; above the third near 

 the costa is a small one, and below it (the third) another ; subdiscal area dark, with a 

 paler spot in the middle ; submedian area paler ; transverse band composed of seven 

 spots, the first four placed obliquely outwards and slightly curved, the second and 

 fourth being the largest, fifth and sixth spots shifted well inwards, but with an 

 outward inclination, the seventh elongated spot is also shifted inwards, submarginal row 

 distinct. Secondaries with a spot at the basal costal extremity, and the usual four 

 basal spots, the fourth shifted inwards, followed by three larger ones below each other ; 

 cell closed by a subquadrate spot, below which is a small one, and above which are two 

 confluent spots, the lower larger than that next the costa, these usually forming the 



