Leone Protectorate. The tollouing aic tin- loealities, etc., of tlie 

 seven females in tlie National Collection. — Noiiliern Nigeria: 

 Kontagora, September 2nd, IHo:? {Surgeon-Major ./. ./. V. A. C. 

 Raye, W.A.M.S., per Sir Patrick Mansoii, lv.( ;..M.(;., F.R.S.) ; 

 Zungeru, July 12th, 1905 [Dr. J. M. Dalzid, W.A.M.S.); Zaria, 

 July 15th, and Allowa, Zaria Province, July 19th, 1907 (./. Bnnul) ; 

 Kefh, Nassarawa Province, Septoinlx-r 4th. 1907, "on liorsc " 

 {Dr. H. F. Williams, W.A.M.S.). Sierra Leone Pnjtectorate : 

 Kaballa. 1908 {Dr. Miirphy. ])er Dr. R. IM. Forde, W.A.M.S.). 



This Hcematopofa. which is s^iid by Surgeon-Major Raye to swarm 

 at Kontagora, would a|)|)('ar to be jjarticularly bloodthirsty. Dr. 

 R. F. Williams writes that il is " a very aggressive biter botli of 

 horse and man," and the specimen from Kontagora l)it Surgeon- 

 Major Raye and sucked his blood, inside a mosc[uito-net. 



Hcematopota tenuicrus, Austen, which likewise occurs in Northern 

 Nigeria, presents some resemblance to //. Inc<'ssens in fades, and 

 also, like it, has no bands on the hind tibiae, can be distinguished 

 from the present species by its front tibiae not being swollen. 



Genus HIPPOCENTRUM, Austen. 



Annals and Magazine of Natural History, Ser. 8, Vol. IL, p. 352 



(1908). 



Plate XII., fig. 95. 



The following are the characters that distinguish this genus 

 from Hcematopota, Meigen, to which it is allied : — Head (at least 

 in the female) wholly or for the most part shining : antenna? (at 

 any rate in the female) extremely slender aiul the first joint elongate ; 

 terminal joint ol tlie palpi in thr t( inalc \cr\ larL'c. and shining 

 on the outer side, which is strongly convex, while the inner >i(|c is 

 flattened ; wings, though more or less sutfused wiili dark colour 

 interrupted by pale streaks or blotches, without the peculiar light 



