— 1896.) BUTTERFLIES OF THE FAMILY HESPERIID&. 73 
250. P. NIGERRIMA, Butl. (Plate II. fig. 12.) 
Halpe nigerrima, Butl. P. Z. 8. 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 chameleon, Mab. C. R. Soc. Ent. Belg. vol. xxxy. 
p- elxxix (1891); Novit. Lepidopt. p. 115, pl. 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. picanint. Grandiplaga 
is apparently a MS. 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 im 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 be- 
wilderment on my part in several cases and an inordinate con- 
sumption 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 Unpublished names of species should not be referred 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. amapuu, Mab. (Plate V. fig. 11.) 
Pamphila amadhu, Mab. C. R. Soc. Ent. Belg. vol. xxxv, 
p- elxxviti (1891). 
Pamphila heterophyla, Mab. 1. c. 
Baoris? amadhu, Butl. P. Z. 8. 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. BATANGS, Holl. 
Parnara batange, Holl. Ent. News, vol. v. p. 92, pl. ii. fig. 10 
(1894). 
Hab. Valley of the Ogové. 
254, P. nigRIcANS, sp. nov. (Plate II. fig. 15.). 
¢. Antenne black, marked with white before the extremity on 
