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Show 456 MR. L. DE NICEVILLE ON NEW OR [May 3, CHERITRELLA, nov. gen. F O R E W I N G with the costal margin slightly and regularly arched ; the outer margin highly truncated from the apex to the termination of the third median nervule, this truncated portion, moreover, being concave ; below the third median nervule to the inner angle the margin is nearly straight and oblique ; inner margin straight. Costal nervure very short, not nearly reaching to opposite the apex of the cell; the first, second, and third subcostal nervules at regular distances apart before the origin of the upper discocellular nervule, the fourth springing from the third about the middle of its length ; upper discocellular nervule directed outwards, middle and lower upright and concave ; the bases of the second and third median nervules half the distance apart of the bases of the second and first; submedian nervure straight. H I N D W I N G with the costal margin strongly arched at the base, thence to apex nearly straight; outer margin to base of long tail at termination of first median nervule straight but waved from thence to anal lobe at right angles ; abdominal margin strongly convex at base aud highly excavated above the anal lobe ; a short tail at termination of submedian nervure. Costal nervure strongly arched at base, afterwards nearly straight; first subcostal nervule originating some little distance before apex of cell, nearly straight; discocellular nervules of nearly equal length, concave, outwardly oblique, the origin of the third median nervule at the lower end of the cell, the second just before its end, that of the first being fully four times as distant from that of the second as is the latter from the third ; submedian nervure nearly straight ; internal nervure very short, ending on the abdominal margin above the deep excavation, and highly sinuous. Nearest to Ticherra, with which it agrees in having no secondary sexual characters in the male, in the neuration of the hind wing ; also in the length and position of the tails, the anal lobe, and the deep excavation above it, but differs from it in the truncation of the fore wing, the costal nervure terminating long before the apex of the cell, and the fourth subcostal nervule spiinging from the third about its middle instead of considerably nearer the apex. CHERITRELLA TRUNCIPENNIS, n. sp. (Plate XXXIX. figs. 4, 3 ; 3,$.) Hab. Sikkim. Expanse. 3 1'5 to 1'6, $ 1*45 inch. M A L E . U P P E R S I D E : both wings black. Fore wing with all but the costa narrowly, aud the outer margin broadly deep dull purple, with a very slight gloss in certain positions. Hind wing with a large brilliantly iridescent, rich bright steel-blue ' patch from the base of the wing, not reaching the outer margin, anteriorly bounded by the costal nervure, extending into the upper portion of the discoidal 1 Very similar to the colour exhibited in the male oi Jamides bochus, Cramer, on the upperside, but not quite so brilliant, and more purple in shade rather than blue. |