PIEBINM. 
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- 
obliqne 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. Hindwing 
greyish-white, the basal area sometimes very faintly flushed 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. Forewing 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. Hindwing 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, 6 ? 3 inches. 
Intermediate form (Plate 547, fig. lb $). 
Male. Upperside. Forewing 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. Hindwing 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 wet form, but generally of a paler yellow. 
Female. Upperside. Forewing similar to the wet 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. Hindwing 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, d 2-J- to 2J, ? 2f inches. 
