new Species and a neio Geuus o/* Spliinglda?. 231 



Type in Coll. Joicey. 



We are greatly indebted to Dr. Jordan for his diagnosis 

 and drawing of the genitalia of Poljptychus lapidatus. 



Thibetia, gen. nov. 



Head large, projecting, with a mesial crest. Antennas of 

 S long and heavy, with short pectinations, ending in a long- 

 gradually tapering tip. Palpi large, projectiiig considerably, 

 the second joint much larger than the first. Two pairs of 

 spurs on hind tibia of nearly equal length, long. Mid and 

 hind tarsus witii comb. Curved spur of fore tibia ver}^ 

 strong. Wings short. Apex of fore wing very obtusely 

 pointed and sliarply curved before apex. Outer margin 

 strongly convex before middle and concave before vein 3, 

 and again but less so at vein 5. Lower angle of cell nearly 

 a right angle with median. Hind wing without lobe at anal 

 angle. 



Type, T. niphaphylla. 



This genus is close to Angonyx, from whicli it chiefly 

 differs in having spurs of nearly equal length on the hind 

 tibia, a short body, and a mesial crest on the head. 



Thibetia niphaphylla, sp. n. 



Above: Head, thorax, abdomen, and fore wing dirty 

 blackish brown. Fore wing with the first three transverse 

 lines pointing basad, tlie outer one double the widtli of the 

 two nearer ones. Discal line nearly straight, passing just 

 beyond end of cell. Two waved postdiscal lines. A sub- 

 apical shade of reddish ochreous. A dark brown shade 

 cutting off a large apical area. Hind wing dirty blackish 

 brown or reddish brown, with a darker border, widest between 

 veins i, 5. 



Below : Base of palpi, breast, abdomen, and large discal 

 area of both fore and hind wing dull reddish. A very irre- 

 gular brown marginal band, widest at vein 5, on both fore 

 and hind wing. A pair of ill-defined curved lines across tlie 

 disc of hind wing. 



Expanse 52 mm. 



Bab. Thibet. 



lc?,3 ? ?. 



Type in Coll. Joicey, 



EXPLANATION OF PLATE VIII. 



Fiff. 1. Polyptychus lapidatus. 



Fig. 2. Ditto. Clasp of j^^enital armature. 



Fig. .3. Thibetia niphaplujUa . 



