188S.] FROM THK HIMALAYAS. .S95 



lateral spots, and in female with dorsal spots ; anal segments in 

 female white. 



Expanse, d" 1^, 2 Ij^ to \^^ inch. 



Sab. Dharmsala. In coll. British Museum. 



This has much the appearance of Spilosoma ruhidorsa (Moore, 

 P. Z. S. 1865, p. 808), hut differs in the narrower and more elongated 

 form of fore wing. 



Larva pale yellowish cream-colour, with a broad dorsal purple- 

 brown band ; each segment laterally with finely-speckled purple- 

 brown oblique streaks, the segments also with sparse dorsal tufts 

 of fine brown and grey hairs and lateral tufts of grey hairs, the 

 dorsal tufts springing from glossy purple-black tubercles ; dorsal 

 band with a central row of linear yellowish spots and slender trans- 

 verse segmental streaks ; head red ; legs yellow. 



"Feeds on cherry; July 14; gregarious whilst young; many 

 hundreds together in a web ; afterwards spreading over the tree 

 and devouring all before them. Pupa, July 28 ; imago, August 16." 



Challa quadrimaculata, n. sp. 



Allied to C. bimaculata. Ochreous-yellow ; fore wing compara- 

 tively broader and more regularly triangular iu form ; with a prominent 

 black spot at upper end of the cell, and a less distinct similarly 

 disposed spot on the hind wing. Palpi black-tipped ; legs blackish 

 above. 



Expanse 1| inch. 



Hah. Palampore. In coll. British Museum. 



Fam. PsYCHiD^. 



Akesina, n. g. 



Wings somewhat elongated, oval ; semitransparent ; sparsely 

 clothed with very short slender hairy scales. Fore wing very convex 

 at the apex ; costal vein extending to near the apex ; cell long, 

 extending beyond two thirds the wing; first subcostal emitted at 

 one eighth before end of the cell, bent upward and anastomosing with 

 the costal for a short distance and terminating before the apex ; 

 second and third branches on a footstalk beyond end of the cell ; 

 discocellular twice-angled, the angles at equal distances, upper angle 

 directed slightly outward, lower angle directed very obhquely inward, 

 radial from upper angle ; a discoidal veinlet emitted within the cell 

 from lower angle and extendini; to base of cell ; two upper median 

 veins from angles at end of the cell, middle median from one third 

 and lower median from one half before end of the cell ; submedian 

 nearly straight and apparently looped at the base. Hind wing very 

 convex externally ; subcostal vein running very close along the 

 margin, arched at the base and thence straight to apex, the branch 

 emitted closely before end of the cell ; discocellular, radial, and 

 discoidal veinlet as in fore wing ; two upper median veins at wider 

 angles from end of the cell, middle median at one third and lower 

 at one half before end of the cell ; submedian and internal vein 



