50 G. MORSITANS: ABDOMEN AND LEGS. 



surface with a dark brown or brownish patch, triangular in 

 outline, on each side of median line ; apical scutellar bristles in 

 9 extremely short, reduced to mere stumps. 



Abdomen. — On dorsal surface, basal angles of second segment 

 greyish, seventh segment, posterior margin of sixth and sometimes 

 also that of fifth segment, and lateral margins and posterior 

 angles of second to sixth segments inclusive light grey pollinose ; 

 the clove-brown, interrupted, transverse bands taper more or less 

 abruptly towards the basal angles of the segments on which they 

 are present, and at the median interruption, though sometimes 

 straight-cut, are, in the more typical forms, generally more or 

 less rounded oft" or even partially obliterated ; the obliteration of 



Bistal portion of abdomen of Glossina morsitans, Wesiw., S (ventral 

 aspect), showing (h) hypopygium and the hectors* above it. (X 15.) 



bands, when it occurs, usually afiects the lower inner angles and 

 mediad portion of the hind margins of the two halves of the 

 bands affected, or, at any rate, the inner extremities of the 

 two halves of the bands, so that, even when the bands are 

 much obliterated, their outer extremities are always visible ; 

 seventh segment in 9 with a more or less distinct indication of 

 an interrupted clove-brown band at base ; hypopygium of ^ 

 (Fig. 14) greyish ochraceous-buff", large as compared with that of 

 G. longi/palpis, Wied. (compare Figs. 14 and 15). 



Legs. — Front femora on inside, middle and hind femora on 

 outside more or less infuscated (mouse-grey or greyish clove- 

 brown), outside of front femora also in some cases with a small 



* See p. 14 (first paragraph and note *). 



