62 MR. F. F. LAIDLAW ON 
The following is an account of the single specimen of this 
species that I have been able to examine :— 
Venation: The triangle of the hind wing, as in the specimen 
figured by Williamson from the de Selys collection, has its upper 
and inner sides subequal, distinctly shorter than is the outer side. 
The male, judging from Williamson’s figure, has the inner side 
distinctly shorter than the other two sides, so that the apex of 
the triangle is at its outer angle. 
The triangles of the Intnl wings In my specimen are bisected 
in each wing by a nerve running from its inner angle to 
the middle of the outer side, whilst in de Selys’ specimen, on the 
left side at any rate, the triangle is divided into 3 cells. Other- 
wise the venation agrees in detail between the two specimens, 
There is no basal subcostal nerve. 
The wing-formula of the two female examples is as follows :— 
Te Ann. Pn.n. M. Cu. t. (cells). suprat. 
19—19 9—10 Jl 6—7 2—2 3—3 
Bhowali, Kumaon...... ss 
10—10 14—13 12—12 1—1 6—6 2—2 3—3 
Bengal. Coll. Selys. 19— 12— 1— 7— 3— 3 
(From Williamson’s — 
tigure.) 12— ‘le 13 (2) 1 8 3 3 (24) 
The wing-formula of the male is 
Bengal. Coll. Selys. 20— 10— 1— 7— 2— 3— 
(From Williamson’s 
figure.) $= = 14— 1 5 2 2 
In the specimen from Bhowali the extreme base of both pairs 
of wings has a golden tinge, this does not extend so far as the 
first cross-nerves. 
Head: Labium dull brown. Labrum brown edged with black. 
Rhinarium dark brown; nasus and frons brownish yellow, the 
frons at its vertex car ries a line of fine black hairs, and is as high 
as the summit of the occiput. In front it nes flattened. 
Vertex black; the ocelli lie in a slightly curved line, the median 
one being placed a little in advance ‘of the lateral pair. 
The antenne have the second joint relatively very large and 
stout, cylindrical in shape, and equal in length to the distal part 
of the organ which consists of five or six slender Joints. The 
large brown eyes meet at a point; and the occiput is small, dark 
brown in colour, with a fringe of fine yellow hairs. 
The prothorax is small, dark brown above, its posterior margin 
lemon-yellow. 
The thorax is relatively small, black, and thickly covered with 
silky brown hairs; there is a pair of dorsal humeral stripes, rather 
wedge-shaped, with their apices directed forwards, not quite 
e touching the margin, of a bright lemon-yellow colour. ‘Two 
broad bands of the same colour lie on either side of the thorax, 
