7 



by Colonel Bruce when forwarding the examples from the Mianga 

 River, but nothing more can yet be said with regard to its habits. 

 The pattern and diffuse character of the wing-markings will serve 

 to distinguish C. brucei without difficulty from either the foregoing 

 or following species. 



Culicoides grahamii, Austen. 



Annals and Magazine of Natural History, Ser. 8, Vol. III., p. 280 



(1909). 



PLATE I., FIG. 3. 



This tiny Midge, the length of which, inclusive of the head, is 

 only 1 mm. or scarcely more, is evidently very widely distributed 

 in Tropical Africa, since the thirteen specimens in the Museum are 

 from Ashanti, Southern Nigeria, the Congo Free State, and Uganda. 

 The precise details as to localities, etc., are as follows. Ashanti : 

 Obuasi, November 17th, 1907, type and three other specimens, taken 

 on the arm of a European at 5.0 p.m. (Dr. W. M. Graham, W.A.M.S.). 

 Southern Nigeria : Cross River, 1906 (Dr. R. W. Gray, W.A.M.8.] ; 

 Porcados, May, 1908 (G. C. Dudgeon). Congo Free State : Binza, 

 near Leopoldville, December 13th, 1903 (the late Dr. J. E. Dutton, 

 and Drs. J. L. Todd and Cuthbert Christy). Uganda Protectorate : 

 Bwamba Country, Semliki Valley, South-West Uganda, 2700 ft., 

 " in forest," 1905 (M. T. Dawe). 



Writing of Culicoides grahamii in Ashanti Dr. W. M. Graham 

 says* : " A very minute species, bloodthirsty, and especially 

 troublesome in the afternoon in verandahs and houses." With 

 reference to this Midge as met with in the Congo Free State by the 

 members of the Expedition of the Liverpool School of Tropical 

 Medicine to the Congo, 1903-05, Dr. C. Christy has supplied the 

 following note : " This species is the most venomous blood-sucker 

 in the Congo Free State. The irritation caused by its bite is severe, 



* " Report by Dr. W. M. Graham upon Entomological Observations made in 

 Southern and Central Ashanti, 1907," page 8 (issued by the Colonial Office, 1909). 



