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Show 354 MR. W. WARREN ON NEW GENERA AND [Apr. 18, angulated, especially in fore wings, the radial starting well above the angulation; in the hind wings the 2 subcostal nervules and the last 2 median are shortly stalked. Scaling loose and thin, so that the wings appear semidiaphanous. Type, Hemistola rubrimargo, sp. nov. HEMISTOLA RUBRIMARGO, sp. n. (Plate XXXI. fig. 3.) 3 . Fore wings pale bluish green, with paler, somewhat ochreous costa, spotted with reddish, the extreme edge red ; fringes white, with a distinct red basal line (entirely absent in 1 example), which is interrupted by a white dot at end of each veiu, and with their apices reddish; transverse lines white, evenly denticulated, approaching each other on the inner margin. Hind wings like fore wings, but with the first line hardly expressed. Head, thorax, antennae, abdomen, and legs dull ochreous (perhaps more bluish when fresh); middle segments of abdomen reddish above; patagia pale bluish. Underside pale bluish white, with the base of the costa reddish. Expanse of wings 30 millim. Hab. Sikkim. A specimen in the Brit. Mus. Collection from Darjiling. [Several specimens of this very pretty distinct species were taken by m e on Tonglo at 10,000 feet in July.-H. J. E.~) MICROLOXIA, gen. nov. Fore wings triangular; costa nearly straight; apex rather prominent, but blunt; hind margin well rounded, not very oblique. Hind wings with hind margin rounded. Forehead slightly prominent. Palpi short, porrect. Antennae of 2 subdentate; of <S pectinated for -| of the length. Neuration normal. Type, M. herbaria, Hiibn. The genus runs parallel to Nemoria, but is distinguished by the pectinated antennae of the male. MICROLOXIA EFFORMATA. (Plate XXXI. fig. 2.) 3 . Fore wdngs pale apple-green, with a broadish white oblique streak from | of the inner margin to $• of the costa ; costa and all the veins picked out with white. Hind wings the same, with a white curved submarginal fascia. Head, thorax, and abdomen green. Underside duller paler green, with the veins whitish; the white streaks of the upperside only showing through ; base of the costa blackish. Expanse of wings 26 millim. Hab. Sikkim. This species may be distinguished at once by the obtusely produced inner angle of the hind wings. COMOSTOLA C^RULEA, sp. n. (Plate XXXI. fig. 1.) 3. Fore wings very pale azure; costa yellow speckled with purple |