394 MEDICAL ENTOMOLOGY 



According to Austen fusca is found from Sierra Leone to the Uganda 

 Protectorate, but it does not appear to be distributed in any of the 

 East African Protectorates, nor has it been recorded from Rhodesia. 



Kinghorn states that it is found in the bush, and that its habits 

 resemble those of longipalpis. It often bites late at night. Bagshawe 



found the puparia of this species in the dry bed of 

 Bionomics and . . . . . , T . . L . . TT , 



Early Stages a stream m tne vicinity of Lake Albert, in the Uganda 



Protectorate, and was able to hatch out one fly. 

 Austen gives the length of the puparium as 8 mm., and states that 

 it is very similar to that of brevipalpis, Newst. It can, however, 

 be distinguished from it by the depth and shape of the stigmal notch. 

 In brevipalpis the notch is relatively wide and shallow, not unlike a wide 

 V in shape, while in fusca it is narrower, deeper, and distinctly 

 U-shaped. 



Glossina nlgrofusca, Newstead. A large dark species closely resembl- 

 ing G. fusca, especially the female. Thorax mouse grey with dark brown 

 markings. Abdomen dark brown. It can be distinguished from 

 G. fusca by the fringe of pale hairs on the anterior and posterior borders of 

 the antenna ; by the darker colour and darker hind tarsi in the male, and 

 by the narrower lines on the thorax. The superior claspers of the 

 male are very widely separated, and the inner margin is produced to form 

 a stout tooth-like projection. The harpes have the larger process strong- 

 ly serrated along the upper edge, and a long narrow posterior process. 

 Length, according to Austen, male 12*4 mm. ; female 12*2 mm. It 

 is distributed from Ashanti to the Congo Free State. Its early stages 

 are unknown. 



Glossina brevipalpis, Newstead. A large species with pale wings. 

 Thorax pale to dark, with obscure greyish brown longitudinal stripes. 

 Abdomen dark brown ; first segment paler than the others. Distinguish- 

 ed from G. fusca and G. nigrofusca by its more robust form, paler 

 colour, and indefinite thoracic markings ; by its shorter and stouter palps, 

 by the great length of the median process of the male genital armature, 

 and the form of the harpes, which have broadly dilated tips. Length, 

 according to Austen, male 10'2 to 12 mm. ; female 11 to 13'5 mm. 



This tsetse has been confused with fusca, under which name it 

 was described by Austen in his Monograph of the Tsetse Flies, in 

 1903 ; the fusca of Stulhmann and others is in reality brevipalpis, 

 Newst. 



Austen states that brevipalpis is common in many parts of South, 

 Central and East Africa, but is unknown in West Africa. It is verv 



