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Show 1868.] MR. A. G. BUTLER ON N E W O R RARE LEPIDOPTERA. 221 flight; I allude to the Penguins and the Steamer-Ducks among the Waders, some of the Rails and Gallinules, the apterous group of New-Zealand birds, the living Rheas, Cassowaries, Ostriches, &c. 3. Descriptions of New or little-known Species of Lepidoptera. By A R T H U R G. BUTLER, F.L.S., F.Z.S. (Plate XVII.) Genus IDMAIS, Boisd. (1836). IDMAIS TRIPUNCTA, sp. nov. (Pl. XVII. fig. 9.) Affinis Idmaidi fulviae (Wallace, Monog. Pieridi), alis autem anticis supra, area apicali, maculas tres solum includente, posticisque maculis marginalibus majoribus subquadratis: subtus fundo vivide flavescente, margine interno posticarum ciliisque anticarum leetis-simefulvescentibus; maculis transerrantibuspostmediisfulvisfusco roratis : stigmate anticarum nigro majore. Exp. alar. une. 2. Hab. India (Coll. Roberts). This species is nearly allied to I.fulvice, Wallace (Ent. Soc. Trans. 3rd ser. vol. iv. pt. 3. p. 392. n. 5, pl. 9. fig. 5), of which it is probably a local form. The exact locality of /. tripuncta has not been clearly ascertained. Genus ACRAEA, Fabricius. Section PLANEMA, Doubleday (1848). PLANEMA MACARINA, sp. nov. (Pl. XVII. fig. 6.) d . Affinis P. macarise (Fabricius), area autem discoidea anticarum fusca, et fascia transversali ferruginosa pone cellam alarum mar-gini subparallela : punctis basalibus posticarum paucis, aliquando co'euntibus. Exp. alar. une. 2^-2-j-^. Hab. Gold Coast (Colls. Swanzy, Trimen, B.M.). B.M. Allied to P. macaria, but smaller ; the cell of the fore wings blackish brown, the transverse band slanting inwards instead of outwards, and the black spots on its inner edge also following in the same direction ; the basal spots of the hind wings smaller, and on the underside occasionally running together. Genus CIRROCHROA, Doubleday (1848). CIRROCHROA JOHANNES, sp. nov. (Pl. XVII. fig. 10.) d\ 2 • Affinis C. bajadetse (Moore), margine autem posticarum supra haud niqro, punctisque nonnullis pone cellee anticarum finem |