1884.] lepidoptera from thk lower niger. 227 



Hesperid*. 



49. Pyrgus vtndex. 



Papilio vtndex, Cr. Pap. Ex. t. 353. f. G, H. 

 Pyrgus vindex, Doubl. & Hew. Gen. Diurn. Lep. t. 79. f. 6 ; 

 Trim. Rhop. Afr. Austr. p. 287. 

 A single specimen. 



50. Pamphila borbonica. 



Hesperia borbonica, Boisd. Faun. Mad. p. 65, t. 9. f. 5, 6. 

 Pamphila borbonica, Trim. Rhop. Afr. Austr. p. 303. 

 Two specimens. 



HETEROCERA. By H. Druce. 



AGARISTIDjE. 



1. iEGOCERA latreillii, Herrich-Schaffer, Aussl. Schmett. 



t. 5. fig. 19. 



Mgocera mac/na,Wa\k. Cat. i. p. 56. 



2. jEgocera rectilinea, Boisd. Spec. gen. Lep. i. t. 14. 

 fig. 5. 



Arctiid.s:. 



3. Aloa punctivitta, Walk. Cat. iii. p. 6/3. 



The specimens agree well with the type in the British Museum 

 from South Africa. 



NyCTEMERIDjE. 



4. Aletis forbesi, sp. n. (Plate XVII. fig. 4.) 



Pale chrome yellow ; primaries with the apical third black, including 

 a transverse white patch and two posterior white spots. Secondaries 

 with a narrow marginal black band, which includes seven elongated 

 white spots. Antenna; of male black, deeply pectinated. The thorax I 

 believe to be black, but it is so much rubbed that I cannot be certain 

 upon this point. Abdomen yellow, with the segments banded with 

 black. Legs yellow. The undersides the same as above. The female 

 agrees in all respects with the male, except that the antennse are not 

 pectinated. Expanse 1 1 inch. 



A small species, very distinct from any described. I have had two 

 specimens in my collection for some time, one from Old Calabar and 

 the other from the Caineroous: they agree in all respects with those 

 from the Niger. The Cameroons example is a female ; it is rather 

 larger, measuring; nearly two inches across the wings. 



LiTHOsimx. 



5. Deiopeia pulchella, Linn. Syst. Nat. i. 2. 884, 349. 



