On neio Lepidoptera from East Afi'ica. 125 



4 nervures (rarely 5) in the lower basal cell : hind winj^s with 

 9 antenodal and 11 or 12 postnodal nervures ; triangle con- 

 sisting of 4 cells, 2 transverse at the base and the other 2 

 beyond ; 2 supratriangular nervures ; 3 to 5 cross-nervures 

 in the lower basal cell ; membranule smoky brown, white at 

 the base. 



Allied to jE. ajfinis, Van der Lind., of Europe, and 

 ^. Rileyi'j Calvert, from Kilimanjaro. Specimens were 

 obtained at Ruwenzori (6000-8000 feet) and " Salt Lake to 

 Wawamba Co," 



Three other species of dragonflies were obtained by Mr. Scott 

 Elliot: — Orthetrum tnincatum, Calvert (previously known 

 from Kilimanjaro), from Ruwenzori ; Cacergates umfasciata^ 

 Oliv. (a species common all over Africa), from the Salt Lake ; 

 and two specimens apparently belonging to a new genus near 

 Agrionoptera^ but not in sufficiently good preservation to 

 descri be. 



XVII L — Descriptions of Three neio Species of Lepidoptera 

 fro7n East Africa. By Emily Mary Sharpe. 



Family Pieridae. 



Mylothris JSeumanni^ sp. n. 



Allied to M. narcissus^ Butler, and M. Jacksoni^ E. M. 

 Sharpe. 



^ . This new species differs from M. Jachsoni in having 

 the fore wing nearly entirely black, the veins of the discoidal 

 cell marked with white ; while on the discal portion of the wing 

 between each of the median nervules is a hastate mark, which 

 combined forms a white patch in the middle of the wing. 



Hind wing. Primrose-yellow, with a heavy black costal 

 border commencing from the first subcostal nervule and ex- 

 tending below the discoidal nervule. 



The third median nervule is indicated by a black spot at 

 the end. The other nervules are marked by very minute 

 black spots near the hind margin. The base of the wing 

 has a black shading, rather stronger than in M. Jachsoni. 



Underside. White on the fore wing, the apical portion 

 being suffused with primrose-yellow, with a little orange on 

 the costa at the base of the wing. 



