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Show 24 MR. F. MOORE ON THE LITHOSIID/E. [J G R O U P B. B. Fore wing with a recumbent plumose lappet. TEULISNA, Walk. Teulisna, Walk. Journ. Proc. Linn. Soc. 1862, p. 109. Male. Wings somewhat short and broad. Fore wing-costa depressed at the base, arched in the middle ; apex pointed, exterior margin oblique, angle acute ; posterior margin very convex towards the base; first subcostal branch short, anastomosed to costal; second free ; third from end of cell, trifurcate ; radial from third submedian branch at a considerable distance beyond the cell; cell folded over at base and overlapped for half its length by a recumbent plumose appendage1; discocellulars very oblique ; median three-branched, two upper at some distance beyond the cell. Female without the fold and plumose tuft. Type, T. plagiata, Walk. Journ. Linn. Soc. 1862, p. 109, from Borneo. TEULISNA TENUISIGNA, n. sp. (Plate II. fig. 13.) Male. Yellow. Differs from the same sex of T. tetragona in its smaller size, being also narrower in both wings. Fore wing with a lengthened black band beneath the cell, the upper end of which is straight, and the basal end very oblique and truncated ; a small spot on costa before the apex ; cilia slightly blackish at the apex. Middle of thorax, tegulae, and front of head black ; fore legs dusky above. Expanse 1-j^j inch. Sikkim. In coll. F. Moore. MACOTASA, n. g. Male. Fore wing narrow ; costa slightly raised beyond the middle ; costal vein raised, with a recumbent plumose tuft overlapping basal half of the folded cell beneath1; subcostal five-branched, first short, oblique, anastomosed to costal, second starting at some distance before end of the cell, third starting from second near its base and bent downward and touching end of the cell, bifurcate near its end, fifth starting in a straight line from end of the cell ; discocellulars straight, nearly erect; radial starting in a straight line from lower end of the cell; median three-branched, the two upper at some distance apart below the radial and parallel to it, the base starting from below end of the cell in a line with the discocellulars; lower median branch from near base of cell, deeply curved. Hind wing somewhat narrow, apex pointed ; two subcostal branches at one third beyond the cell; two upper median branches near its end. Antennae minutely setu-lose. Palpi small, ascending. Legs slender. Female. Fore wing not folded or plumed ; radial starting from upper end of the cell; two upper median branches straight from beyond end of the cell. Probably a sound-producing apparatus, |