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Show 18/8.] MR, F# MOORE ON THE LITHOSI1D.E. 25 MACOTASA BIPLAGELLA. (Plate II. fig. 14.) CEcophora biplagella, Walk. M S . 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, J lyV, $ 1T% 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 length1 ; subcostal and median veins contiguous, 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 ; exterior 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. Antennae 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 length1; 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 a sound-producing apparatus. |