18 ROBERT NEWSTEAD—A REVISION OF THE TSETSE-FLIES (GLOSSINA), 
Legs yellowish brown or buff ; femora broadly and distinctly infuscated, especially 
the middle and hind pair. Middle and hind tibiae also with a very broad 
infuscated blotch ; anterior tarsi with the tip of the fourth segment black, last 
segment dark at tip but not black ; middle tarsi similar; hind tarsi all dark, but 
the distal half of the third segment and the whole of the two succeeding ones 
black ; hairs on ventral surface bright golden brown. 
Frmare. Differing from the male in having the legs decidedly paler; the 
hind tarsi with the last two segments black, the second and third with the tips 
only black. The thoracic and abdominal markings and also the form and 
strongly pubescent character of the long terminal segment of the antennae are 
specifically the same as in the male. 
Described from four examples, three males and one female. One male was 
taken at Kasongo, Congo Free State, 6. Il. 04 (Drs. Dutton and Todd) ; 
another at Sunyani, Ashanti, 5. ILI. 10, and the third at Atroni, W. Ashanti, 
16. VIII. 10 (Dr. A. Kinghorn) ; the only female I have yet seen was taken 
at Odumase, W. Ashanti, 27. [V. 10 (Dr. A. Kinghorn). 
Genital Armature of the male (fig. 5). Superior claspers (sc), free and 
strongly bidentate ; bristles long and slender; proximal half of the dorsal 
surface clothed with finely-pubescent hairs. The editum or extension of the 
Fig. 5. Male armature of Glossina nigrofusca, Newst. ; lateral view. 
body-wall (7) with relatively few bristles, the longest reaching to the base of the 
harpes; some of the bristles are broken or entirely wanting, and it is highly 
probable that some of these may prove to be longer than those shown in the 
illustration. Inferior claspers (éc), clothed with numerous long hairs; distal 
margin presenting an ogee curve, the base being strongly and broadly produced, 
the distal angle narrowly produced and narrowly rounded ; proximal margin with 
a very deep and somewhat elliptical emargination, Median process (mp) 
