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Show 366 MR. W. WARREN ON NEW GENERA AND [Apr. 18, CHALYBOCLYDON, gen. nov. Fore wings broad; costa nearly straight, convex only just before apex, which is square; hind margin almost imperceptibly crenu-lated, bluntly elbowed in the middle; hind wings with hind margin similar. Neuration : cell of both wings very short, not more than -|-; discocellular very obliquely curved inwards ; fore wings with the 1st median nervule at |, 2nd close before, the 3rd at, the end; lower radial from § of the discocellular ; upper radial from end of cell, 5 subcostals on a common stem, the 5th rising not far from its base, the 4th running into the apex, 1st, 2nd, and 3rd close together, one after the other. Hind wings with the costal anastomosing with subcostal for f of cell; the two subcostals on a short footstalk ; radial from | of the discocellular; medians as in fore wing. Scaling close and smooth, with faintly metallic lines. Type, Chalyboclydon marginata, sp. n. CHALYBOCLYDON MARGINATA, sp. n. (Plate XXXII. fig. 16.) 2 . Fore wings pinkish drab, with a slight olive tinge ; the base beyond the middle chocolate brown ; across the centre of the wing a vertical thick angulated chocolate-brown line, diffusely bordered on either side with duller brown bands, the inner one expanding on the costa, both thickly sprinkled with fine lustrous lilac scales ; shortly before apex, a Y-shaped chocolate-brown line runs obliquely to the hind margin at the elbow, then bends inwards nearly at right angles to its former course to above the anal angle, then vertical; space between hind margin and this line, and lower i of the apical wedge, dull brown speckled with lilac atoms ; apical § lilac-grey ; space between central and outer line traversed by a broad angulated fascia of lustrous lilac scales interspersed with a few darker ones; fringe-line chocolate-brown; fringes ochreous and fuscous mixed. Hind wings with the basal half wholly lilac-grey, containing a small black cell-spot, followed by 5 undulating fascia? of the ground-colour, alternating with 4 lilac-grey fascia? of exactly equal width ; a submarginal line running close to, but not touching, the fringe-line, chocolate-brown; base of fringes chocolate-brown, but finer; space between the two lines lustrous lilac-grey. Head, face, and fore parts of thorax dark chocolate-brown; rest of thorax aud abdomen ochreous drab. Underside silvery drab, with darker diffuse mottling and suffusion ; fore wings with one, hind wings with two, distinct angulated brownish lines; cell-spot of hind wings distinct. Expanse of wings 36 millim. Hah. Sikkim ; Momeit, Burmah. [Seems a very scarce species in Sikkim, where it has only been taken in the interior by Moller's collectors. There is a smaller species of the same genus from the Karen Hills of which I have only one specimen.-H. J. E.~\ |
