232 
LEPIDOPTEBA INPICA. 
entire length, except for a short portion of the base ; second snb-costal, long, emitted 
nearer the base of the first than to the base of the upper discoidal nervule; third 
sub-costal very short, emitted from the costal nervure at about opposite the apex of 
the second sub-costal; upper discocellular nervule absent; middle and lower cliscocel- 
lulars of about equal length, concave; lower discoidal nervule from the point of 
junction of the discocellulars; second median nervule emitted some little distance 
before the lower end of the cell; sub-median nervure sinuous, following the shape of 
the inner margin. Hindwing long, oval; costa very straight, outer and abdominal 
margin with an even curve; costal nervure slightly arched at base, then straight to 
the apex of the wing; first sub-costal nervule emitted much before the end of the cell ; 
upper discocellular nervule short, outwardly oblique, straight; lower discocellular 
longer, upright, concave; second median nervule emitted a little before lower end 
of cell. 
Type, P. hylax , Fabricius. 
PITHECOPS HYLAX. 
Plate 628, figs. 1, $, la, $ , lb, $ . 
Papilio hylax, Fabricius, Syst. Ent. p. 526 (1775); id. Sp. Ins. ii. p. 124 (1781); id. Mant. Ins. ii. 
p. 77 (1787). 
Hesperia Burales hylax, Fabricius, Ent. Syst. iii. (i.) p. 304 (1793). 
Polyommatus hylax, Godart, Enc. Meth. ix. p. 701 (1823). 
Pithecops hylax, Horsfield, Cat. Lep. E.I.C. p. 66, pi. 1, fig. 2, 2a (imago), 2b, pupa (1828). Moore, 
Proc. Zool. Soc. 1865, p. 771. Butler, Cat. Fabr. Lep. p. 161 (1869). de Niceville, Journ. As. 
Soc. Bengal, 1882, p. 62 ; id. Butt, of India, iii. p. 49, pi. 26, fig. 161 (1890). Manders, Trans. 
Ent. Soc. 1890, p. 527. de Niceville, Journ. Bo. Hat. Hist. Soc. 1890, p. 297. Watson, id. 
1891, p. 43. Elwes, Proc. Zool. Soc. 1892, p. 621. Bingham, Fauna of Brit. India, Butt. ii. 
p. 308 (1907). 
Lycsena hylax, Hopffer, Stett. Ent. Zeit. xxxv. p. 27 (1874). Staudinger, Ex. Schmett. p. 271, 
pi. 94, $ (1888). 
Imago. —Male. Upperside of a uniform brownish-black colour, without markings. 
Underside, milk-white, markings chocolate-brown. Forewing with a post-discal series 
of transverse short lines, the upper one the darkest, and two black sub-costal spots in 
continuation; a well marked band on the outer margin containing a series of similar 
lines all white. Hindwing with a post-discal paler line, a sub-terminal continuous line 
and a series of black dots close to the margin ; a very large black spot at the apex of 
the wing. Cilia of forewing brown, of hindwing white. 
Female, like the male, but there is a large white patch on the forewing above, a 
little below the centre of the wing, which varies in size in many examples. 
Expanse of wings, £ 1, £ t 9 q- inch. 
Habitat. —Sikkim, Assam, Burma and the Malayan sub-region. 
