28 



UOBERT NEW8TEAD — A REVISION OF THE TSETSE-FLIES (gLOSSINA), 



slightly longer tliau the longest on the opposite side of the clasper. The con- 

 necting membrane (on) deeply divided and spinose on both sides. Harpes some- 

 what Q-shaped, the distal portion being much broader and flatter than the 

 proximal. Juxta ( /) very similar to that in G. palpalis and G. tachinoides. 

 Inferior claspers {ic) with a number of bristles on the broad basal portion, their 

 apices somewhat falciform, being curved outwards and apparently bluntly pointed ; 

 but their true morphological character cannot be exactly ascertained as the 

 terminal portion presents an oblique view in the only specimen examined ; they 

 are however specifically distinct from the corresponding organs in the other 

 known species of tsetse-Hies. Editum (c) Avith the longest bristles reaching 

 almost to the proximal portion of the superior claspers. 



Fig. 13. — Male armature of Glossma iMlUce-ra, Bigot ; ventral view. 



I have been able to examine but a single example of the male armature of 

 this insect, so that it is just possible that other characters may in future be 

 discovered. One cannot be at all certain for instance as to whether the outer 

 half of the distal extremity of the claspers will invariably present the suddenly 

 truncate or broken appearance as exists in the specimen described ; it is obvious, 

 however, that the inner half of the apical margin is perfect and intact, as the 

 presence of the spines amply testifies. 



The distinctive morphological features are : the great vridth of the claspers 

 proximally and the presence of the short spines on the distal margin ; the curious 

 and somewhat falciform shape of the inferior claspers and the striking form of 

 the harpes. 



