viii LIST OF FIGURES IN THE TEXT. 



KIG. rAOK 



15. Distal portion of abdomen of Glossina longipalpis, Wied., 6 



(ventral aspect), showing (h) hypopygium and the hectors 

 above it (x 15) 51 



16. Antenna, oi Olossina fusca, Walk, (x 30) . . . . .70 



17. Distal extremity of i abdomen of (A) Glossina fusca, Walk., and 



(B) G. fuscipleuris, sp. nov. (ventral aspect), showing (h) 

 hypopygia and (hect.) hectors ( x 15) . . . . .76 



18. Antenna of Glossina nigrofiisca, Newst. ( x 30) . . . .78 



19. Antenna of Glossina tahaniformis, Westw. ( x 30) . . .82 



20. Heads of males of {A) Glossina brevipal^ns, Newst., (jS) G. fusca, 



Walk., and (C) G. medicorum, sp. nov., dorsal aspect ; 

 showing differences in the size and shape of the head as a 

 whole, in the shape of the eyes, and in the length of the 

 palpi ( X 10) 86 



21. Heads of iem&les oi {A) Glossina brevipal]pis,'^e\y&t., {B) G. fusca, 



Walk., and (G) G. onedicoitim, sp. nov., dorsal aspect; 

 showing differences in the size and shape of the head as 

 a whole, in the shape of the eyes, and in the length of the 

 palpi ( X 10) . . . ■ 87 



22. A Tsetse-fly {Glossina »torsito«s, Westw., ? ), before feeding (x 6) 'J3 



23. A Tsetse-fly {Glossina morsitans, Westw., 9 ), after feeding, 



showing abdomen distended with blood (x 6). From a 

 drawing from life, kindly lent by Colonel Sir David Bruce, 

 C.B., F.R.S., A.M.S 93 



24. Distal extremity of 6 abdomen of (A) Glossina brecipalpis, 



Newst., and (B) G. medicomm, sp.^nov. (ventral aspect), 

 showing (h) hypopygia and (hect.) hectors (x 15) . . 99 



