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Show 1879.] NEW SPECIES OF RHOPALOCERA. 151 tawny spots, the secondaries are crossed by a median and a submarginal bands, which are divided by the tawny submedian branches ; these bands in some specimens are almost confluent. Hab. Yquitos, Upper Amazon (Whitely). This is one of the numerous forms of M. maelus found in the Upper Amazon and Lower Napo. Having six specimens from these countries all closely resembling one another, we think it necessary that this form should bear a name. MELIN^EA CYDON. 6 . Exp. 3*3 in. Allied to M. pardalis (Bates, Trans. Linn. Soc. xxiii. p. 552), but differing in the absence of the yellow cross belt of the primaries, the only yellow markings on the wing being restricted to a subapical series of three spots. The tawny brown markings of both wings are rather more clearly defined than in M. pardalis; and the central black cross bar of the secondaries is generally distinct from the black outer margin. Hab. Tabatinga (Bates) ; Pebas (Hauxwell) ; Yquitos (Whitely). This is the race alluded to by Mr. Bates under his description of M. pardalis. At that time he did not seem to have considered it sufficiently distinct to separate it; but since then additional examples have come to hand, which point to the conclusion that this race is as well-defined as M. pardalis itself. The same degree of local differentiation is to be seen in Ceratinia tigrina as compared with C. fluonia. In Heliconius pardalinus a similar state of things is to be found. ERESIA LAIAS. (Plate XIV. fig. 1.) Exp. 2 in. Allied to E. carme (Doubl. and Hew.), differing in the arrangement of the spots of the primaries : a large patch of fulvous occupies the apex of the wing, between which and the inner margin lies a larger oval patch, its axis parallel to the outer margin ; beyond the cell is a small fulvous spot, obsolete in some specimens. Beneath the colour-pattern is much as in E. carme; but the fulvous base of the primaries extends interruptedly almost to the outer margin, but does not include the spots in the apex. In E. carme there are distinct spots near the anal angle. Hab. Frontino, Columbia (T. K. Salmon). ADELPHA HYPSENOR. (Plate XIV. fig. 2.) Exp. 2*9 in. Allied to A. lara (Hewitson), but differing on the upperside in having the transverse extra-cellular band on the primaries white, instead of red ; this white band is divided by dark nervules, and on its outer edge especially, where it approaches the outer margin, is tinged with fulvous. Beneath, the band of the primaries is white instead of pink as in A. lara, and the basal half of the secondaries is yellower. Hab. Frontino, Columbia (T. K. Salmon). PYRRHOPYGA RUFINUCHA. Exp. 2-4 in. Body bluish black ; palpi black ; a rufous spot at the |