2 SPHINGIDvE. 



uniting with a badly-defined expanding oblique belt from costa to external angle ; outer 

 border undulated, dark brown, limited internally by a stripe of tbe 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 LXXVIII. 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 eell 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 fringe 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 LXXVIII. 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; tegulse grey, with black borders ; abdomen with 

 two longitudinal series of black dots, a lateral golden-yellow streak from the second segment. 



