17 



According to the author quoted, the area of distribution of G. fusca, 

 Walk., appears to extend " at any rate from the Sierra Leone to the 

 Uganda Protectorates." The species is known to occur in the Sierra 

 Leone Protectorate, Liberia, Gold Coast Protectorate (Ashanti), and 

 Northern and Southern Nigeria, as well as in Uganda ; but up to the 

 date of Austen's "Handbook" (1911) no examples of it had been 

 received at the British Museum (Natural History) from " French 

 Guinea, the French Ivory Coast, Togoland, Dahomey, Cameroon, 

 French Congo, or the Congo Free State " [Belgian Congo] (Austen). 

 Since then, however, its existence in Togoland has been recorded by 

 Glaser ; Roubaud, who also took a specimen on the Upper Sangha, has 

 reported its occurrence on the Lower Ivory Coast ; Kleine (80) has 

 stated that it is fairly frequently met with in Cameroon, where (at 

 Kumbe in 1914) Dr. Fischer captured 1,011 specimens in four weeks ; 

 Jamot (76) has found it abundant on small rivers in French Congo ; 

 and Schwetz (132) has studied its habits and breeding-places in various 

 localities in the Katanga district of Belgian Congo. 



Dr. S. A. Neave states that G. fusca is not rare in the Toro and 

 Semliki Valley forests (Uganda), while it is said also to be found in the 

 Budongo Forest, in Unyoro. 



Under the name G. fusca var. congolensis, a new variety of this 

 species was described in 1921 by Newstead and Evans (109). The 

 variety in question, of which fourteen examples, belonging to both 

 sexes, were taken by Dr. Schwetz between Kisengwa and Katompe 

 (situated respectively in the Lomami and Tanganyika Districts of 

 Belgian Congo), while agreeing generally with the typical form in 

 coloration and markings, is stated usually to have " more heavily 

 infuscated " wings and to exhibit certain structural differences in the 

 genital armature of the male and female. 



Glossina haningtoni, Newst. and Evans. Described so recently as 

 the spring of the present year (1922), this species is stated by its 

 authors, Professor Robert Newstead and Miss A. M. Evans (109#), to 

 be " Closely related to Glossina fusca," while " differing externally by 

 the relatively much shorter palpi (proboscis), and the slightly more 

 robust appearance. But the most marked morphological differences," 

 we are told, " can be seen only in the genital armature of both sexes. 

 A careful study of these organs at once reveals the strikingly distinctive 

 features of this species, and its affinities with other members of the 

 " Fusca Group ' of tsetse-flies." 



The authors' diagnosis of G. haningtoni is as follows : " A large 

 dark-coloured species, with infuscated wings, belonging to the ' Fusca 

 Group.' Hairs of the third antennal segment relatively short. Pro- 

 boscis (palpi) 0.7 to 0.9 mm. shorter than in G. fusca. Width of front 

 in both sexes similar. Harpes of male each with three processes, the 

 distal one angular and emarginate in front. Signum of female with 

 height slightly exceeding width and paired crescentic folds almost 

 continuous behind." 



The only specimens of this species at present known are the typical 

 series of 2^, 2?$, taken 14th December 1921 in South Cameroon, 

 " in the neighbourhood of Basho, where the ground begins to rise to 

 the north into fly-free mountain-plateaux " (Dr. J. Hanington). 



Glossina fuscipleuris, Austen. The describer of this Glossina 

 characterised it as a : " Dusky species, allied to and resembling 

 G. fusca, Walk., but distinguished by the pleurae being dark grey 

 instead of drab-grey or isabella-coloured, by the hind coxae being 

 mouse-grey instead of buff or greyish-buff, and by the black hair fringing 



(5979) B 



