140 LEPIDOPTERA INDICA. 
Imaco. Male. Forewing broad, triangular; costa moderately and regalarly 
arched, the apex acute, exterior margin straight, posterior angle rounded, posterior 
margin somewhat sinuous, being lobed near the base, and the edge of the middle 
folded back flat upon the underside, the fold being thickly clothed on its surface 
and fringed at its free edge with firmly attached long and somewhat raised modified 
scales, rendered conspicuous by their rich dark-brown colour and satiny lustre; the 
outline of this turned-down fold is marked out on the upperside by a curvilinear 
eroove; first subcostal branch emitted just before end of the cell, second 
branch beyond the end of the cell, the first and second, and the third coales- 
cing near their middle respectively with each other, and the first with the 
costal, ending on the costa before the apex; discocellulars concave, upper radial 
from a slight angle close to subcostal, the lower radial from above the 
middle ; median veinlets emitted at equal distances apart and from the base, the 
lower median terminating at the posterior angle; submedian vein sinuous, being 
much recurved downward from the base, and touching the posterior margin at one- 
fourth from the base from whence it is curved upward, and terminates on the 
posterior margin. About one-fourth from the posterior angle, the middle of the 
posterior margin being folded beneath the wing as above stated. Hindwing broad, 
quadrate, tailed ; anterior margin very much arched, and almost angled in its middle, 
apex angled, exterior margin broadly produced in the middle, and with a prolonged 
tail at end of the upper median veinlet, anal angle rounded ; costal vein short and 
terminating on the middle of the margin; first subcostal branch ending beyond the 
middle, and the second at the apex; cell narrow; discocellular starting from near 
the base of lower subcostal, and running in the same straight line, then curving 
obliquely downward and outward to lower end of the cell, radial from its middle; 
the middle median veinlet emitted at a short distance before end of the cell, lower 
median at about two-fifths; submedian and internal vein slightly recurved, the 
submedian furnished with a prominent black sagittate glandular patch, divided by the 
vein, near the anal angle; the patch clothed with black elongated scales of nearly 
equal width throughout, their apex being very obtusely bidentate, and their base also 
bidentate ; some few of these scales are much narrower, but of the same form. Body, 
slender; palpi very compactly clothed with short hairy scales, tip pointed; legs 
slender ; antenne very slender, rather short, and with a well-formed club ; eyes naked. 
Tyrx.—P. Marshalli. 
PARANTIRRHGEA MARSHALLI (Plate 132, figs. 3, 3a, ¢). 
Purantirrhea Marshalli, Wood-Mason, Journ. Asiatic Society, Bengal, 1880, p. 250 ; cd. Ann. Nat. 
Hist. 1881, p. 335. Marshall and de Nicéville, Butt. of India, ete. i. p. 262, fig. J (1883), 
Imaco.—Male. Upperside dark violescent-brown, with a violet-blue tint in 
