70 



DESCRIPTION OF GLOSSINA FUSCA. 



3'25 mm., 9 ^'^ to 3'4 mm. ; width of front at vertex, ^ 

 0-6 mm., 9 0'6 to just under 1 mm. ; length of portion of 

 palpi projecting beyond margin of buccal cavity, ^ .3 -2 to 

 3"6 mm., 9 3'6 to 4'5 mm. ; length of wing, (J 10 to 11 mm., 

 9 10-8 to 12-6 mm. 



Large, dark brown, darJc-iolnyed species, with long and slender 

 palpi, and loithout distinct dark hands on the abdomen, lohich is 

 lighter at the base ; in general appearance very closely resembling 

 (Glossina nigrofusca, Newst. (p. 77), but distinguishable in both 

 sexes by the third joint of the antennae not being clothed with long 



Fig. 16. 

 Antenna of Glossina fusca. Walk, (x 30.) 



and fine pale hair, forming a conspicuous fringe down the anterior 

 and posterior edges. 



Head buff or cream-buff, posterior surface smoke-grey, face, 

 sides of front, and posterior orbits below yellowish pollinose ; 

 frontal stripe dark brown or mummy-brown, its anterior extremity 

 mummy-brown or russet-brown ; ocellar spot dark brown, con- 

 nected with dark brown transverse band joining bases of vertical 

 bristles ; antennae partly buff, partly brown or mouse-grey, 

 second joint dark brown at least on inner surface, third joint 

 (tip of which is prominent) buff at base and on posterior margin, 

 elsewhere dark brown or mouse-grey, viewed in profile fairly 

 broad, not clothed with long and fine pale hair, fringe of minute 

 hairs on fi'ont and hind margins in length not exceeding one- 

 sixth of breadth of third joint {cf. Figs. 16, 19 and 18), arista 



