1884.] ON LKPIDOPTERA PROM THE LOWER NIGER. 219 



CoPTOPS FuscA, Oliv. ? 



A single specimen from Maroe which I cannot separate from the 

 African C.fusca, and which is therefore doubtlessly introduced. 



Symphyletes pedicornis, Fabr. 



An Australian species introduced. 

 Hub. Maroe. 



Praonetha pleuricausta, Pascoe. 



I can see no difference between the specimen brought by Mr. 

 Forbes and that described by Mr. Pascoe from Port Albany, N. 

 Australia. 



Hab. Maroe. 



Chrysomelid.e. 



Phyllocharis cyanipes, Fabr. 



This species occurs in Australia, New Guinea, Bouru, &c. 

 Hab. Maroe. 



EXPLANATION OP PLATE XVI. 



Fig. 1. DiwphcBtcs rugosus, p. 214. a, labriim ; b, labium ; o, maxilla. 



2. Gyphogastra splendens, p. 215. 



3. Bostriohus aqualis, p. 215. 



4. Archefypus castaneus, p. 217. 



5. Nemophas forbesi, p. 218. 



4. On the Lepidoptera collected by the late W. A. Forbes 

 on the Banks of the Lower Niger. — Rhopaloceba by 

 F. D. GoBMAN and O. Salvin. Heterocera by H. 

 Druce. 



[Eeceived March 28, 1884.] 

 (Plate XVII.) 



RHOPALOCERA. 



The collection of Butterflies made by the late W. A. Forbes 

 during his expedition to the Niger, contains fifty species, and com- 

 prises representatives of all the Families of Rhopalocera hitherto 

 known from Tropical Africa except the Erycinidse, a group but 

 feebly developed in this region. 



The specimens of this collection are generally in poor condition 

 and have the appearance of having been captured at a season when 

 fresh examples were not to be obtained. From this cause, and pro- 

 bably also from the low-lying nature of the country, many ot the 

 more conspicuous species known from the adjoining districts of Old 

 Calabar and the Camaroon Mountains, are absent from tlie present 

 collection. 



On comparison with the Lepidopterous Faunas of the places just 

 mentioned, and we may also say of the West coast of Africa generally, 



15* 



