bo 
SPHINGIDZA. 
uniting with a badly-defined expanding oblique belt from costa to external angle; outer 
border undulated, dark brown, limited internally by a stripe of the ground-colour ; a submar- 
ginal subangulated belt and two or three ill-defined parallel stripes of dark brown across the 
apical area: secondaries reddish brown, palest towards the base, and with a broad tapering 
dusky border: body above violet-grey, streaked with brown. Primaries below fuliginous 
brown, varied with ashy grey on the costa beyond the middle; a broad irregular reddish- 
fulvous discal belt tapering towards the apex; outer border dark brown: secondaries reddish 
fulvous, with the costal border whitish crossed by brown belts, which divide into indistinct 
rufous parallel lines below the costal vein and cross the wing to abdominal margin ; outer 
border irregularly violet-brown, rather narrow: body below reddish fulvous ; the sides of 
pectus, legs, and segmental lines of the venter greyish brown. Expanse of wings 4 inches 
4 lines. 
Silhet (Stainsforth & Argent). 
Acosmeryx pseudonaga. (Plate LX XVIII. fig. 3.) 
Most nearly allied to A. naga, but decidedly darker; the primaries more sericeous, with 
well-defined black-edged yellow discoidal stigma; the dark oblique belt beyond the cell convex 
instead of concave, abbreviated so as to be continuous with an oblique band (ill-defined in 
A. naga), which runs from the third median branch to the external angle; the dark external 
border widened in front, but abbreviated to little more than half the length of that of A. naga, 
the silvery-grey submarginal stripe more diffused, the apical excision of the margin deeper : 
secondaries with the basal half grey, the external half black; the frmge and a patch at anal 
angle whitish; the veins externally sordid white ; no transverse dark stripes : body with less- 
defined markings. Under surface similar in marking to A. naga, but with scarcely a trace of 
the red coloration excepting upon the venter. Expanse of wings 4 inches 3 lines. 
Bhotan (Lidderdale). 
PERGESA, Walk. 
Pergesa aurifera. (Plate LX XVIII. fig. 4.) 
Pergesa aurifera, Butler, Proc. Zool. Soc. 1875, p. 7. n. 11. 
Primaries above olive-green, base transversely spotted with black ; a violet-centred black 
discoidal stigma and a dusky streak from it to the inner margin; disk clouded with reddish, 
crossed obliquely from costa to inner margin by three parallel series of black spots ; three 
large subapical costal black spots; outer margin pearly, speckled with black; fringe dull 
ochraceous : secondaries black-brown, costal area pale brown; an anal ochreous streak : body 
olive-green ; head bordered with whitish ; tegule grey, with black borders ; abdomen with 
two longitudinal series of black dots, a lateral golden-yellow streak from the second segment, 
