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Show 1896.] BUTTERFLIES OF THE FAMILY HESPERIIDJE. 73 250. P. NIGERRIMA, Butl. (Plate II. fig. 12.) Halpe nigerrima, Butl. P. Z. S. 1893, p. 672. Hab. British Central Africa. This species is exceedingly close to P. galesa, Hew. The only difference I can detect is in the form of the macular band on the upperside of the secondaries, which is more irregularly curved in galesa and has a slightly different direction, and in the presence in nigerrima of a narrow white costal streak on the underside of the primaries at the base. This last feature seems to be lacking in galesa. 251. P. CHAMELEON, Mab. Pamphila chamceleon, Mab. C. R. Soc. Ent. Belg. vol. xxxv. p. clxxix (1891); Novit. Lepidopt. p. 115, pi. xvi. fig. 3 (1893). Hab. Sierra Leone. Mons. Mabille compares this species with his P. grandiplaga, which in his letter he identifies as my P. picanini. Grandiplaga is apparently a M S . name. My learned friend is in the habit of affixing names to specimens coming into his possession, and has given them currency now and then in his papers and through collections which he has labelled, without having published a description of the species. This has led to a great deal of bewilderment on my part in several cases and an inordinate consumption of valuable time in quest of the place in literature where the supposed description, which ought to have been published, might be found. Unpublished names of species should not be referred to, except it be with a distinct statement that they are such. 252. P. AMADHU, Mab. (Plate V. fig. 11.) Pamphila amadhu, Mab. C. R. Soc. Ent. Belg. vol. xxxv. p. clxxviii (1891). Pamphila heterophvla, Mab. 1. c. Baoris? amadhu, Butl. P. Z. S. 1893, p. 672. Hab. Transvaal, Natal (Mabille); British Central Africa (Butler). I have before me the types of P. amadhu and P. heterophyla, belonging to Dr. Staudinger, and am satisfied of the identity of the two forms. The type of P. heterophyla is simply a dwarfed and somewhat worn example of P. amadhu. The insect is closely allied to P. moritili. 253. P. BATANG^:, Holl. Parnara batangce, Holl. Ent. News, vol. v. p. 92, pi. iii. fig. (1894). Hab. Valley of the Ogove. 254. P. NIGRICANS, sp. nov. (Plate II. fig. 15.) 3. Antennae black, marked with white before the extremity on |
