Miss E. M. Shavpe on new Ea^t-African Butterflies. 335 



XLIV. — Descriptions of new Species of East- African 

 Butterflies. By Emily Mary Shaepe. 



Miss Jackson has entrusted to me for description some 

 specimens of butterflies recently collected by her brother, 

 Mr. F. J. Jackson, the well-known African explorer. During 

 the journey which Mr. Jackson has recently made, as leader 

 of the first caravan sent by the British East-African Company 

 into the interior, he obtained a considerable number of Lepi- 

 doptera, which he will fully describe on his return to England, 

 but meanwhile, by the desire of I113 sisters, I describe some 

 of the novelties. 



Mr. Jackson's collection was principally made in the 

 Ukambani country, and as he is now in the Victoria Nyanza 

 district we may expect further consignments of interest. 

 Several species were obtained in the Ulu Mountains which 

 are identical with others from Kilimanjaro in the British 

 Museum, and my father tells me that this is the case with 

 the birds. 



I have to acknowledge with many thanks the kind help 

 which I have received from Mr. A. (x. Butler and Mr. W. F. 

 Kirby in the determination of the species. 



Fam. Acrseidzs. 

 Genus Planema. 



Planema Jacksoni, sp. n. 



Similar to P. montana, Butler, from Kilimanjaro, but 

 differs in having the hind margin of the hind wing orange- 

 rufous, whereas in P. Jacksoni the black border extends 

 along the whole of the hind margin. In the colouring of the 

 hind wing P. Jacksoni resembles P.gea of Fabricius, but it has 

 a greater extent of broad black margin extending to the apex 

 of the submedian nervure. In the colouring of the fore wing 

 P. Jacksoni approaches P. gea, but has a much greater extent 

 of orange-rufous, a band of which colour traverses the wing 

 and nearly touches the broad extent of orange-rufous on the 

 inner margin of the wing, being only separated from it by a 

 line of black at the extremity of the lower median nervule. 



