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Show 1882.] NEW SPECIES O F R H O P A L O C E R A . 397 in H. vulcanus is not the case, but the black has rather a greenish reflection. The red of the band is in H. vulcanus more fiery, the band itself on an average narrower, on the outside toothed, and extended further down. On the upperside of the hind wings the anterior margin in the males of H. vulcanus is yellowish, whilst in H. venus it is grey. The fringe in H. vulcanus is distinctly veined black and white, in H. venus it is clear white. This can only be seen in fresh specimens. On the underside of the fore wing the red band in H. vulcanus is fainter, in the middle especially mixed with white, which is not the case in H. venus. At the base of the anterior margin is found in H. vulcanus a short sharp red streak, which is always wanting in H. venus. On the underside of the hind wings the yellow streak of the anterior margin in H. venus is usually rather broader and longer; it is especially different in the yellow middle band, which in II venus is always longer and bent upwards at the pointed end, usually extending upwards nearly to the margin. In the shorter band of H. vulcanus the obtuse end bends, on the contrary, rather downwards. In H. vulcanus also it is sharply defined, and not so in H. venus. In some specimens of II. vulcanus, both male and female, it is entirely wanting. II. vulcanus has always close to the base one or two red points, which are very rare in H. venus. Both species have the palpi white beneath, and spots on the head and prothorax. The short fore legs are white in H. venus, but yellowish in fresh specimens of H. vulcanus. The underside of the abdomen is also yellower in H. vulcanus than in H. venus. HELICONIUS GODMANI, sp. n. (Plate XXIV. fig. 3.) I received a small number of this species, which I name in honour of Mr. F. DuCane Godman, also through Herr E. Trotsch, from the Rio San Juan, in Western Colombia. H. godmani is nearly allied to H. gynasia, Hew., but is certainly distinct from it. The fore wings in both are black with yellow spots ; but the spots are different: H. godmani has on the end of the posterior margin a rather long yellow stripe, which is wanting in H. gynasia. On the outer margin are seven or eight oblcng yellow spots, of which those near the apex are smallest, whilst in H.gyncesia these are the largest. Before these are three other yellow spots, and far below them a fourth, which, in H. gynasia, is close to them. Above the median cell on the costa is a small double spot as in H. gyncesia; besides this there is also another yellow spot in the middle cell which is absent in H. gyncesia. A male shows also at the base of the cell a fine yellow streak, which on the underside is large, triangular, and somewhat forked ; and all the other spots of the upperside are, beneath, rather more strongly developed. The hind wings are, in the females, red-brown with broad outer margin, on which are seven (in one female eight) oval yellow spots, as in H. gyncesia. Beneath are eight yellow spots, and at the base of the anterior |
