308 



Key to tlic forms o/ Pithecops. 



. Upperside : ground-colour in both sexes brown, 



with no blue gloss ....................... N P. hylax, p. 308. 



b. Upperside : ground-colour rf brown, disc of fore 



and hind wings shining blue ; ground-colour $ 



blackish ................................ P. fulgent, p. 308. 



Horsfold, Cat. 



' de N. Butt. 



679. Pithecops hylax, Fabr. Syst. Ent. 1775, p. 526 ; H 



Lep. Mus. E. I. C. 1828, p. 66, pi. 1, figs. 2, 2 a, 2 b; 

 Ind. iii, 1890, p. 49, pi. 26, fig. 161. 



d $ . Upperside : brown, in fresh specimens generally uniform, 

 in some slightly paler along a posterior area from base outwards 

 on the fore wing. This is more common in the $> than in the tf . 

 Underside : milk-white. Fore wing : a few very obscure specks 

 along the costa, and a postdiscal transverse series of four transversely 

 elongate spots, or short broad lines, pale brown ; the spots of the 

 latter arranged two subcostal and two posterior close to the tornal 

 angle ; beyond these is a continuous transverse broad brown line 

 that gets paler posteriorly, from costa to dorsum, followed by a 

 subterminal series of similarly-coloured transverse spots, one in 

 each interspace ; at the apex these are generally coalescent with 

 the inner brown line ; lastly an anticiliary dark brown line. Cilia 

 dark brown. Hind wing : a curved postdiscal series of transverse 

 pale brown spots that terminate at the costa in a prominent large 

 round black spot ; a continuous broad pale brown curved line 

 followed by a subtermiual dark brown series of spots and an anti- 

 ciliary line as on the fore wing. Cilia white. Antennaa, head, 

 thorax and abdomen brown ; the antenna? spotted with white on 

 the inner side ; beneath : the palpi, thorax and abdomen white. 



Exp. d 1 $ 11-13 mm. (0-46-0-53"). 



Hob. Sikhim ; the hills of Assam, Arracan, Burma and Teuas- 

 serim ; extending well into the Malayan Subregiou. 



680. Pithecops fulgens, Doherty, J.A.S. B. 1889, p. 127, pi. 10, fig. 6 ; 



de N. Butt. Ind. iii, 1890, p. 50. 



cJ . Upperside : dark brown ; medial two-thirds from base to 

 disc of both fore and hind wings glossed with brilliant shining 

 blue. Underside : very similar to the underside of P. hylax, but 

 on both fore and hind wings the transverse outer postdiscal line is 

 ochraceous rather than pale brown ; on the hind wing the inner 

 postdiscal series of transverse spots is wanting and the large 

 round subcostal black spot placed further towards the apex of the 

 wing. Antennae, head, thorax and abdomen much as in P. Tiylax. 

 $ . Upperside : blackish brown without any suffusion of blue. 

 Underside : similar to that of the tf . Cilia of fore wing pale, of 

 hind wing white. 



Exp. c? $ H-13 mm. (0-46-0-53"). 



Hob. Eecorded only from the hills of Assam. 



