PIEBIN^. 201 



Wet-season Brood (Plate 542, fig. 1, la $, lb, c ? ). 



Male. Upperside greyish-white. Foreioing with the costal border sprinkled 

 with grey scales ; a prominent black exterior marginal decreasing dentated band, the 

 black extending along the subcostals, radials, and upper and middle medians, on 

 each of which it dilates, and thus forms a more or less incomplete excurved subapical 

 fascia enclosing the apical white elongated streaks. Hlndwing with a promuient 

 black exterior marginal dentated band, the inner points of which are each prolonged 

 acutely for some distance along the veins ; the subcostal and medial fascia of the 

 underside being slightly visible. Underside greyish-white. Forewing with similar 

 but much less prominent marginal band, the vein portions being more narrowly lined. 

 Hindiving with all the veins — except the base of the median, upper discocellular, and 

 base of radial, and entire lower submelian — distinctly black lined, each vein also 

 being slightly edged on both sides with blackish scales, these scales being more 

 broadly sprinkled along the subcostal from its base to apex ; a black scaled speckled- 

 fascia also extends across the middle of the wing from lower subcostal to the 

 submedian vein. 



Female. Upperside fuliginous greyish-black. Forewing with a sullied or 

 greyish-white Inroad subapical oblique patch, a discal patch extending pointedly 

 inward below the cell towards the base, sinuously outwards to posterior angle and 

 then for some distance below the submedian ; also four or five apical more or less 

 distinct white small narrow ovate spots. Hindwing with a white upper-discal broad 

 patch extending from the subcostal across outer half of the cell, and a lower-discal 

 series of spots increasing in size posteriorly and obsolescent anally. Underside with 

 similar but much less-defined markings as on upperside. Forewing with the dark 

 portions much paler, being either fuliginous or dark fuliginous-grey, the apical area 

 more or less olivescent-yellow tinged, and tlie spots more or less obsolescent, the 

 cell-area also either dark grey or olivescent tinted. Hindiving with the dark portions, 

 as on upperside, much less defined, and of a more or less olivescent-yellow tint, the 

 base of the costa being bright yellow. 



Expanse, c? ? 2^-0 to 2i^ inches. 



Intermediate Foem (Plate 542, fig. Id, e cC, If ? ). 



Appias Olferna, Swinhoe, Ann. Nat. Hist. 1890, p. 358, ^ 9. 



Male. Upperside. Forewing with similar but somewhat narrower, and much 

 paler defined outer marginal markings than in tlie wet-form. Hindwing also with 

 very shghtly-defined or obsolescent outer-marginal vein-points. Underside. Fore- 

 2ving white, the apical area very faintly flushed with pale yellow ; marginal markings 

 either obsolescent or obsolete. Hindwing almost white or very faintly flushed with 

 VOL. VI. D d 



