4 Hon. L. W. Rothschild on 



Kigonseva, N.E. of Lake Nyassa, German East Africa ; a 

 small series in the Tring Museum. 



8. Aurivillius triramis, sp. n. 



The first subcostal of fore wing from the cell. Antenna 

 of male much smaller tlian in A. arata, Westw. (1849), the 

 branches shorter and therefore stiffer, the apical ventral 

 branches of the central segments about as long as the next 

 two segments together, being much shorter than the proximal 

 branches, the dorsal apical branches also shorter than the 

 proximal ones of the same segments. In the female the 

 Segments shorter than in arata, the branches, which are 

 longer, being therefore closer together. 



Smaller than West- African specimens of arata. The 

 pattern almost exactly the same as in yellow individuals of 

 arata. The tuft at the base of the antenna and the sides of 

 the breast more yellowish ; the second discal line of fore wing 

 thinner and more distinctly dentate ; the marginal area less 

 marked with brown. 



Dorsal lobe of anal segment of male narrower than in arata, 

 bearing a dentate crest beneath. Apical lobe of clasper long. 

 Penis-funnel with a black dentate club on each side. 



Sierra Leone, southward to the Kassai River and Angola. 



A. ai'ata occurs also in these districts, but is apparently 

 less frequent. 



9. Gommhrasia helina occidentalis, subsp. n. 



Nearest to G. h. osiris, Druce (1896). Outer margin of 

 fore wing in male more incurved and in female more straight, 

 being usually slightly emarginate. The white scaling along 

 the lines of both wings less dense, this white border to tlie 

 discal line of fore wing edged by a fuscous or red line. The 

 outer margin of hind wing in male more angulafce below 

 centre and the discal line closer to margin; its white border 

 usually disappearing posteriorly. The ocellus of underside 

 of fore wing not edged with fuscous. The anal tergite of 

 male slenderer than in osiris and the processes of the penis- 

 sheath obtuse. 



Gambaga, Volta River, Gold Coast Hinterland {Dr. Bury) ; 

 a long series in the Tring JMuseum. 



10. Gonirnhrasia melanoneura, sp. n. 



Nearest to G. acetes, Westw. (1849). Antenna more 

 shortly pectinated, and only 15 segments bearing side- 

 branches, about 16 distal segments being without them. 



