PIEBINjE. 223 



male, extending hindward to the posterior angle and from thence decreasingly inward 

 along the margin to base of the wing, its projecting portion between the upper and 

 middle median extending broadly obliquely-inward, encompassing the discocellular 

 spot across anterior half of the cell, thus only leaving a white narrow outwardly- 

 oblique recurved upper band, and a broad lower white band, the basal portion of 

 which is sometimes glossy ; the extreme edge of posterior margin of the wing and its 

 cilia being also white; subcostal spots and a medial white spot, as on upperside, the 

 latter being smaller, and there is also a white spot at posterior angle. Hindiving 

 greyish-white, the basal area sometimes very faintly flashed with pale yellow ; a 

 prominently black outer-marginal band and connected submarginal zigzag fascia, the 

 latter becoming broadly continuous and more or less confluent posteriorly. Under- 

 side. Foreiuing with duller black markings similar to upperside, except that the 

 apex is broadly pale greyish ochreous-yellow or glossy grey, with the subapical spots 

 slightly indicated ; the base of cell and costa being pale yellow, Hindiving paler 

 yellow than in male, or greyish-white and slightly glossy, the yellow being more 

 clearly defined along the vein borders and extreme outer margin, with slightly 

 apparent dusky-scaled submarginal and medial zigzag fascia, and discocellular black 

 dot, as in the male, the outer marginal interspaces being whitish and somewhat glossy. 

 Body greyish-white ; front and abdomen above dark grey ; antennae black above, 

 white beneath in the male ; anal tufts blackish ; intromittent organ sometimes 

 exserted. 



Expanse, c? ? 3 inches. 



Intermediate form (Plate 547, fig. lb (J). 



Male. Upperside. Foroywing with the black outer band somewhat narrower, 

 the projecting discal portion and the discocellular spot generally smaller,, the latter 

 being usually isolated; three subapical white spots are sometimes present; the 

 median interspaced white spot is larger. Hindiving with narrower black outer- 

 marginal macular band, or its spots are slenderly defined only at end of the veins. 

 Underside. Forewing similar to the upperside, the apex paler yellow than in wet 

 form. Hindwing similar to tvet form, but generally of a paler yellow. 



Female. Upperside. Forewing similar to the xoet form, except that the black 

 outer band is less intensely black from the lower median and extends obsolescently 

 inward to about half the posterior margin. Hindioing with the black outer-marginal 

 band less intense than in the wet form, more macular, its connected submarginal zigzag 

 fascia less defined and becomes obsolescent posteriorly from the upper median. 

 Underside similar to wet form. Forewing with the outer band less defined posteriorly 

 from the lower median. Hindwing pale yellow ; marginal interspaces whitish, but 

 not glossy. 



Expanse, c? 2| to 2f , ? 2| inches. 



