204 LEPIDOPTERA INDICA. 



Pieris Libitina, Godarb, Enc. Me'th. ix. p. 133 (1819). Boisduval, Spec. Gen. Lep. p. 499 (1836). 

 Pierig Bouxii, Boisd. Spec. Gen. Lep. p. 481, (J (1836). 

 Appias retexta, Swinhoe, Ann. Nat. Hist. 1890, p. 360, S ? • 



Wet-season Brood (Plate 542, fig. 2 S, 2a, b ? ). 



Imago. — Male. Upperside greyish-Avhite. Foreioing with black costal edge, aud 

 grey-black scaled irrorated basal costal border ; a black-scaled very narrow exterior 

 marginal deiitated baud decreasing from the subcostal to the submedian. Hindwing 

 with very small indistinct blackish-scaled marginal vein-points, which are obsolete in 

 some specimens that probably emerged near the dry season. Underside white. 

 Foretving with the costal and outer edge slightly blackish ; a few greyish-black 

 scales along the base of costa. Hindunng unmarked. 



Female. Upperside greyish-white. Foreiving with greyish-black costal edge, a. 

 broad longitudinal band from base of the costa and filling up the cell — with the 

 exception of a thin streak above the median vein, this black cell-band more or less 

 thinly extends along the upper median veinlet and joins a broad outer-marginal 

 decreasing band extending sinuously from before the apex to posterior angle, 

 enclosing the white subapical oblique quadrate patch, the outer band showing faint 

 traces of paler intervening streaks ; a less intense greyish-black fascia extends 

 pointedly outward from below the cell to the disc in extreme wet-season specimens. 

 Hindwing with a greyish-black marginal macular band composed of large confluent 

 spots, or, of more or less slightly separated spots paling diffusedly to the anal angle, 

 and connected by similar coloured scales along the veins from the lower subcostal to 

 a discal curved paler fascia, which latter becomes obsolete posteriorly. Underside 

 white. Both wings with dark-grey similar disposed markings. Foretving with the 

 outer band traversed by white interspaced streaks, or this band is white and its 

 inner edge only defined by dark grey. Hindwing with the outer- marginal macular 

 band indistinct or obsolescent ; base of costa pale yellow. Some intermediate 

 specimens of this sex (Plate 542, fig. 2a) — which agree with the Fabrician ti/pe 

 specimens of Lihythea — emerged probably near the dry season, vary on the upperside, 

 in \j\\G foretving, in the connecting black streak along the upper-median to the outer 

 band, and also the lower basal fascia, being either obsolescent or obsolete, and in the 

 hindioing, the marginal spots are smaller and more or less well separated, the discal 

 fascia with its connecting veins is also obsolescent or more generally entirely absent. 

 On the underside, the markings are much less defined ; on the forewing the outer band 

 is very faintly indicated by the greyish innei'-edge, the apical area being entirely 

 white or very faintly tinged with pale yellow, and ou the hindwing the ground-colour 

 is either white or very faintly tinged with pale yellow, the discal fascia being faintly 

 indicated, and the marginal spots absent. 



Expanse, c? ? 2 to 2j^ inches. 



