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Show 574 MR. H. H. DRUCE ON BORNEAN LYCEENIDEE. [June 18, Kina Balu (Waterstr.). Type Mus. Staud. Can this be a seasonal form of C. dilectissima ? On the underside they are almost identical, but on the upperside the hind wings are strikingly different. CYANIRIS PLAUTA, sp. n. (Plate XXXII. figs. 8 d , 9 $ .) Lyccena plauta, Staud. M S . d • Upperside deep lavender-blue, colour of C. placida, with black costa, apex, and outer margin much as in Lyceenopsis haraldus, Fab. (to which it bears a general resemblance, without possessing the beautiful opalescent shading of that species), but the blue area more extensive: hind wing deepl aveuder-blue, outer margin very narrowly black, with a marginal row of elongate black spots ; costal margin broadly black to near its apex, where it becomes white, a large white patch below this occupying nearly the whole of the subcostal interspace except the black outer margin : anal fold whitish. Underside : ground-colour white tinged with pale yellow as in L. haraldus, with black spots arranged much as iu C. placida, large and distinct; the black spot on the middle of the costa of hind wing is unusually large and conspicuous. 2 . Upperside resembling C. albielisca, Moore, £, but without the black streak closing the cell of the fore wing, and with the whole of the wdiite area of the fore wing as well as the abdominal half of the hind wing shot with beautiful opalescent blue ; the black marginal spots on hind wing become more separated and distinct towards the anal angle. Underside as male. Expanse, d If5 2 If-IfV incn' Kina Balu (Waterstr. and Everett); Labuan (Loiv). Mus. Staud. and Druce. Some females from.-Kina Balu are not so strongly marked on tbe underside as others, whilst a female from Labuan in Messrs. Godman and Salvin's collection has the outer margin of hind wing above broadly black-bordered. It seems a distinct species, and the yellowish tinge of the underside may perhaps serve to link it with the species which I have placed in the next genus. CYANIRIS RIPTE, sp. n. (Plate XXXII. fig. 11 d •) d • Upperside bright shining violaceous blue, with a pinkish tinge and black margins about equal to those of C. placida. Underside pale browTn, slightly paler only than the ground-colour of Jamides bochas, Cr., $, with sordid-white-edged spots and markings, which are rather darker brown than the ground-colour, arranged as in C. puspa, with the addition of a double spot in the centre of the cell of the fore wing. The black spot just beyond the middle of the costal margin on the hind wing is large aud prominent. Expanse 1-1^- inch. Labuan (Low). Type Mus. G. & S. C. ripte differs from all others iu the shade of blue on the upperside, and is, I believe, the only Cyaniris known which has a |