162 LEPIDOPTEBA INDICA. 



ArJiopala silhetensis, de Niceville, Butt, of India, iii. p. 237 (1890). Watson, Jouvn. Bo. Nat. Hist. 



Soc. 1891, p. 47. Bethune-Baker, Trans. Zool. Soc. 1903, p. 72. 

 Arhopala arama, de Niceville, Journ. Bo. Nat. Hist. Soc. 1895, p. 28.5, pi. O, fig. 30, ^ . 



Imago. — Male. Upperside purplish-blue. Foreiving with the costal line narrowly 

 and the outer marginal line more broadly black. Hlndwing with the costal space 

 broadly blackish, the outer margin with a narrow black band which terminates at the 

 anal angle, in a somewhat diffuse black patch, anal lobe black, with a whitish spot in 

 it, tail black, tipped with white, and with some whitish scales in the black margins 

 between it and the anal spot. Cilia of both wings black. Underside brown, with a 

 chocolate tint, markings dark brown, with pale edges. Forewing with the hinder 

 marginal space broadly pale, the usual three cell spots, increasing in size outwards, 

 and the usual oblique spot below the middle of the two outer cell spots and the spot 

 in the next lower interspace below the central cell spot, but well separated from each 

 other, a spot on the costa above the discoidal spot, well separated from it, a discal 

 series of seven conjoined spots, the first four in a gentle curve obliquely outwards, the 

 fifth outwards, the sixth below it in a slight outwardly oblique line, the seventh small 

 and inwards, and sometimes a very small spot below it. Hindwing with four sub-basal 

 spots, the second a little inwards, the fourth well inwards, followed by three larger 

 spots, the second slightly inwards, the third sub-triangular, a slightly curved bar at 

 the end of the cell, with a small spot below it, touching its lower inner end, a discal 

 series of eight spots, the first two from the costa larger than the others, the lower inner 

 end of the second touching the upper outer end of the discoidal spot, the third well 

 separated and outwards, joined to the next three, the fifth being somewhat inwards, 

 the seventh well inwards and well curved, touching the eighth and running inwards 

 and upwards to the abdominal margin ; both wings with a rather prominent series of 

 sub-marginal spots, conjoined on the forewing, the upper two separate on the hindwing, 

 terminal line brown, indications of small and sub-terminal lunular marks, a large black 

 spot on the anal lobe, with a white dot on its fringe, not always present, a small black 

 spot in each of the next two interspaces, the anal spot capped with metallic blue-green 

 scales, the other two almost covered with them, and a few whitish scales above the 

 blue-green scales. 



Female. Upperside paler and more violet-blue. Forewing with the costa broadly 

 black, the band widening towards the apex, a black mark at the end of the cell 

 running into the costal band, outer marginal band narrowing gradually hindwards. 

 Hindwing with the costal space broadly blackish, the band continued down the outer 

 margin, narrowing gradually hindwards. Underside as in the male. 



Expanse of wings, ^ ? 2 inches. 



Habitat. — Sylhet, Sikkim, Burma. 



Distribution'. — The type came from Sylhet, de Niceville records it from Jaipulguri, 



