1878.] MR. F. MOORE ON THE LITHOSIID.E. 25 



Macotasa biplagella. (Plate II. fig. 14.) 



(Ecophora biplagella, Walk. MS. 



Upperside pale whitish luteous : fore wing with a dark brown 

 median costal streak, which is indistinctly continued as a narrow band 

 across the wing, the streak more prominent and larger in the male ; 

 apex also brown-streaked : hind wing whitish at the base. 



Expanse, 3 ly^-, 2 I -^ inch. 



Borneo. In coll. British Museum and F. Moore. 



Zadadra, n. g. 



Male. Fore wing shortened, distorted, and crumpled at the apex ; 

 costa arched beyond the middle, apex very convex, exterior margin 

 very oblique hindward, posterior margin shortened and very convex ; 

 cell very long, folded and overlapped above with a short tuft of 

 recumbent plumes its entire length 1 ; subcostal and median veins con- 

 tiguous, the branches being near apex of the wing ; discocellulars very 

 convex ; subcostal at some distance from costal, first branch recurved 

 upward from end of the cell, second starting from near base of the 

 first, bifurcate near the end, fourth before end of the cell and touching 

 the second near its base, fifth branch and radial from end of cell ; 

 median vein three-branched, two upper beyond end of the cell, lower 

 recurving from end near and parallel to upper branch ; submedian 

 boldly recurved. Hind wing long, broad ; apex much produced ; ex- 

 terior margin recurved ; cell long ; upper discocellular long, inwardly 

 oblique, lower very short and outwardly oblique; subcostal bifid from 

 end of cell ; median three- branched, two upper beyond end of cell, 

 lower at half its length ; submedian nearly straight. Body slender, 

 longer than hind wing. Antennse minutely and finely bipectinate. 

 Legs long, smooth, spurred. Palpi slender, porrect ; base pilose ; 

 apex long. 



Female. Wings longer ; cell of fore wing not folded or tufted, and 

 the apex not crumpled ; hind margin much less convex, and the 

 submedian less recurved. 



Zadadra distorta. (Plate II. fig. 15.) 

 Lithosia distorta, Moore, P. Z. S. 1872, p. 572. 

 Darjiling. In coll. F. Moore. 



Prabhasa, n. g. 

 Wings long. Fore wing narrow, very slightly arched before the 

 apex ; exterior margin oblique, slightly convex ; posterior margin 

 long, nearly straight ; subcostal vein at some distance from costal, 

 first branch short, curving upward to costa before end of the cell, 

 second straight from end of the cell, third contiguous at base to the 

 second, trifurcate, looped to second near base ; cell long, in the male 

 folded and tufted with recumbent plumes above to beyond half its 

 length 1 ; discocellulars long, convex ; radial from lower part ; median 

 vein three-branched, two upper curving hindward from lower end of 

 the cell, lower curving from below the cell at nearly half its length ; 

 1 Probably n sound-producing apparatus. 



