47 



Pooley). In addition to the foregoing the author has examined 

 and determined the following specimens of this species, belonging 

 to the Museum National D'Histoire Naturelle, Paris ; three females 

 from French Congo, Haute-Alima, May, and " between Banana and 

 Boma, on man," November 15th (E. Boubaud), and one female 

 from Lake Marguerite, Abyssinia, alt. 1120 metres, September 9th, 

 1907 (Dr. Latham). The specimen recorded above as taken near 

 Jangabu, Northern Nigeria, by Major C. B. Simonds, bears the 

 label: "In swamp, 1.0 p.m., only specimen seen ; taken biting 

 native ; bite caused much irritation." In Gambia, according to 

 Dr. Hood, C. distinctipennis attacks horses. 



Chrysops dimidiata, v.d. Wulp. 



Notes from the Leyden Museum, Vol. VII., p. 80 (1885) [Chrysops 



dimidiatus~\. 



PLATE II., FIG. 13. 



A common and troublesome West African species, which has a 

 wide range, including Cabinda (Portuguese West Africa, where the 

 type was obtained), French Congo, Southern Nigeria, and Ashanti. 

 The Museum collection comprises : Five females from Ologbo, 

 Southern Nigeria, May, 1906 (G. C. Dudgeon) ; one female from 

 Ndogolai, Cross River, Southern Nigeria, 1908 (G. C. Dudgeon) ; 

 twenty-two females from Akwete, Opobo River, Southern Nigeria, 

 October, 1907 (Captain W. H. Best, W.A.M.S.) ; and six females 

 from Obuasi, Ashanti, June 10th July 15th, 1907 (Dr. W. M. 

 Graham,W.A.M.S.). 



In Ashanti, according to Dr. Graham, Chrysops dimidiata 

 " frequents verandahs and houses, is extremely bloodthirsty, bites 

 readily, and is a great pest." According to Griinberg,* C. dimidiata 



* Cf. Dr. Karl Griinberg, " Die Blutsangenden Dipteren,"p. 127 ( Jena : Gustav . 

 Fischer, 1907). 



