82 DR. W. J. HOLLAND ON THE AFRICAN (Jan. 14, 
very near ally, by the yellow colour of the light markings upon 
the wings. 
278. A. NEANDER, Ploetz. (Plate II. fig. 23.) 
Apaustus neander, Ploetz, 8. E. Z. vol. xlv. p. 154 (1884). 
Ancyloxypha producta, Trim, 8. Afr. Butt. vol. ii. p. 334 (1889). 
Hab. Tropical West Africa ; Delagoa. ’ 
I have a long series of this species, concerning which Mr. Good 
wrote me that at the time of capture they appeared to be engaged 
in migrating in vast numbers. Only upon the occasion of this migra- 
tion did he observe them during a residence of eight years upon the 
banks of the Ogové River. Mr. Trimen confirms, after examining 
specimens I sent him, the opinion I had before communicated to 
him, that this species is the one named producta by him. 
Hipani, Dist. 
279. H. cmntra, Hew. (Plate II. fig. 3.) 
Hesperia venira, Hew. Exot. Butt. vol. iv. Hesperia, pl. ii. 
figs. 15, 16 (1867). 
Pamphila cenira, Kirby, Syn. Cat. p. 606 (1871). 
Q. Hesperia calpis, Ploetz, 8. E. Z vol. xl. p. 354 (1879), 
vol. xlii. p. 825 (1882). 
fab. Gaboon, Cameroons. 
The description given by Ploetz of his species named Hesperia 
ealpis is unmistakable, if care be taken to make the comparisons 
which he suggests. I have also been able to identify his species 
by means of a copy of the figure contained in his plates. For 
many years I have kept H. ca/pis apart from the older species named 
Hesperia cenira by Hewitson, but upon examination I discover 
that every specimen of H. calpis in my collection, several dozens of 
them, are females, and all of the specimens of typical H. cenira are 
males. Furthermore, there is such absolute agreement in the 
markings and coloration of the primaries on the underside of the 
two forms, as to convince me that they are sexes, and I have 
accordingly united them as above. The female varies in some 
instances. I have one specimen in which there is a manifest 
tendency to an enlargement of the white spot on the primaries, 
so that the marking approximates more nearly that of the male 
than is usual. 
280. H. tarercunus, Holl. (Plate I. fig. 15.) 
Proteides laterculus, Holl. Ent. News, vol. i. p. 156 (1890). 
Hab, Valley of the Ogové. 
281. H. rriconor, Holl. (Piate I. fig. 5.) 
Proteides tricolor, Holl. Ent. News, vol. i. p. 156 (1890). 
Hab, Valley of the Ogové. 
