4:58 ^Ir. O. Thomas on the 



yellowish hairs ; in the centre of all the segments, except the 

 first, sixth, and seventh, the hairs are thicker and whiter, cx- 

 tciuliiii;" liali'way up the width of the segment; ou the sides 

 tlie })nbcseence is mostly yellow on the first, yellow and black 

 on the second, third, and fourth, yellow on the fifth aiul 

 sixth, and black on the seventh ; underside yellow, with 

 irregular black markings and whitish pubescence. Legs 

 reddish yellow, the coxie with long white hairs, long black 

 hairs on the underside of the femora, and short black pubes- 

 cence elsewhere. Wings hyaline, grey, with brown veins ; 

 no appendix; the incomplete vein is distant about a third of 

 its actual length from the border, the lirst posterior cell 

 closed rather near the border. 



Length 11 millim. 



The female type is similar ; the forehead is reddish brown, 

 with darker frontal stripe and black pubescence ; the second 

 joint of the jjalpi is as long as the first, curved, tapering to a 

 ])oint, and yellower in colour; the yellow fringes on the 

 abdomen do not extend bevond the fifth segment. 



LX VII. — The Lycaon and Pedetes of British East Africa, and 

 a neio G erbille from N. Nyasa. By Oldfield Thomas. 



I. — Lycaon. 



The British IMuscum received many years ago from Capt. 

 (now Gen. Sir Frederick) Lugard examples of the East- 

 African Lycaon^ and later on from Mr. F. J. Jackson an 

 imperfect skin of the same form ; but it is only now that, 

 thanks to further material from other regions and to the 

 iocei])t from ]\Ir. C. 8. Betton of three })crfect skins from East 

 Africa, that 1 am able to venture on a determination of this 

 animal. 



Owing to tlieir peculiar irregular coloration specimens of 

 Lycaon are particularly difficult to compare effectively with 

 one another, and still more to describe in a recognizable 

 manner. As is well known, no two individuals, even if trom 

 the same pack, are precisely identical, and it is only by the 

 general average coloration that one is able to distinguish the 

 local races at all. 



However, it appears that while (1) the Cape form {L. jiiclus 

 venadcus, Burch.) is more yellow than black, with yellow- 

 mixed backs to the ears, with a good deal of yellow on the 



