91 



Tabanus maculatissimus, Macquart. 



Memoires de la Societe Royale des Sciences, de r Agriculture et des 

 Arts de Lille, 1838, 2 e partie, p. 125 (1838) : Dipteres Exotiques, 

 T. I., l re Partie, p. 121, PI. 17, fig. 2 (1838). 



PLATE VI., FIG. 46. 



So far as is known at present, Tabanus maculatissimus, Macq., 

 is found from Cape Colony to the Nyasaland Protectorate and the 

 Congo Free State, while T. maculatissimus irroratus, Surcouf , a form 

 without orange hair at the extremity of the abdomen, and with 

 larger brown blotches at the tips of the wings, occurs in French 

 Congo. A glance at the figure will suffice to enable the reader to 

 identify this species, which may be regarded as an offshoot of the 

 group represented by the four species illustrated in the upper hah* 

 of Plate VI., since, although the front tibiae are distinctly swollen, 

 the ground-colour of the body is dark brown, the legs are pale 

 instead of black, as is usually the case in the group referred to, 

 and the wings instead of being banded are blotched or speckled 

 with brown. The localities, etc., of the seven females representing 

 the species in the National Collection are as follows. " S. Africa," 

 before 1844 (Dr. Andrew Smith). Cape Colony: Kaffraria, 1878 

 (F. P. Mansel Weale}. Natal: Karkloof, February, 1897 (O. A. 

 K. Marshall). Nyasaland Protectorate : Shire Highlands, February, 

 1905 (Dr. J. E. S. Old). Congo Free State : near Lualaba River, 

 Katanga District, between 9 and 10 S. Lat., " on buffalo " 

 [Bubalus caffer, Sparrm.] (Dr. A. Yale Massey). 



Tabanus pluto, Walker. 



List of the Specimens of Dipterous Insects in the Collection of the 

 British Museum, Part I., p. 153 (1848). 



PLATE VI., FIG. 47. 

 The unusual appearance of this species, due to the presence of 



