GLOSSINA FUSCA 393 



In any case it is a rare fly, and the discovery of the male must be 

 awaited. 



Glossina fuscipes, Newstead. Until quite recently this tsetse was 

 believed to be a rare species. Newstead states that it is allied to 

 G. palpalis, but is distinguished from it by its small size, by the 

 uniformly dusky legs, and by the dusky grey thorax. It measures 

 1\ mm. and looks like a dwarfed specimen of palpalis. The genital 

 armature of the male is similar to that of palpalis and tachinoides, 

 but has, according to Newstead, a curious claw-like process at the 

 distal extremity of the superior clasper. The type, a male, was taken 

 by Dr. Shircore at Nimulien, the Nile Province of Uganda. 



Dr. McConnell recently collected a number of specimens from the 

 same district, and at first believed them to be palpalis, but on examining 

 the male genitalia he found that the superior claspers of all the speci- 

 mens had these curious claw-like processes. The same was found in other 

 specimens collected from the shores of Lake Edward and Lake Victoria. 

 Other observers have examined the genitalia of apparently typical 

 specimens of palpalis from Uganda, and have found the same appear- 

 ances, so that it seems that most, if not all, the specimens of palpalis 

 from Uganda are in reality fuscipes, Newst. In all other respects than 

 the claspers this fly appears to be similar to palpalis and Mr. Marshall 

 considers that it is best to treat it as a local variety. 



Glossina pallicera, Bigot. A medium sized light brown species very 

 closely resembling a lightly coloured specimen of calignea. Thorax 

 olive grey with the usual brown longitudinal bands. Abdomen sepia 

 brown with a lighter median longitudinal band on the first segment. 

 The third joint of the antenna has a fringe, both anteriorly and 

 posteriorly, of long delicate yellowish hairs. It is a rare West African 

 tsetse ; Austen states that it is found from Sierra Leone to the French 

 Congo. Graham encountered it at Ashanti, where it was very local 

 in its distribution. Austen states that Graham found it in the bush, 

 where it was basking in the sun on the upper surfaces of leaves ; it 

 does not appear to be an active biter. Its early stages are unknown. 



Glossina fusca, Walker. A large dark brown, almost black-winged, 

 species with long and slender palpi. Thorax mouse grey, with brown 

 bands of the usual Glossina type. Abdomen dark brown, first segmen t 

 paler, no distinct bands. This tsetse closely resembles another species, 

 nigrofusca, Newst., but can be distinguished from it by the absence 

 of long hairs on the third joint of the antenna. Austen gives the lengths 

 of the sexes as follows : male 9'6 to 11*6 mm. ; female 10'5 to 11*8 mm. 

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