26 ROBERT NEWSTEAD—A REVISION OF THE TSH'TSE-FLIES (GLOSSINA), 
Glossina fuscipes, Newstead. 
G. fuscipes, Newst., Ann, Trop. Med. and Parasit., IV, p. 375 (1910). 
This tsetse-fly may be readily distinguished from G. palpalis, by its much 
smaller size, by the uniformly infuscated or dusky legs, and the dusky grey 
thorax. In size it resembles G. tachinoides, Westw., but it is a relatively stouter 
built insect ; and altogether it is most like a dwarfed specimen of G. palpalis 
with infuscated legs and dusky thorax. The genital armature resembles those of 
G. palpalis and G. tachinoides in its general form; but the superior and inferior 
claspers are quite distinct from those of either of these insects. 
Length, 75 mm.; length of wing, 8 mm. 
Ma.r.—Head with the frontal stripe yellowish brown, margins dusky white ; 
ocellar triangle buff, enclosing a very dark brown spot. Antennae grey ; arista 
dark brown ventrally. Palpi smoky brown with a paler narrow median line. 
Proboscis with the bulb dark piceous. Thorax with a median dark grey rec- 
tangular area extending from the front to the scutellum, the sides of which are 
perfectly straight and parallel; on either side of the grey area are two greyish 
black and somewhat triangular blotches, evidently remnants of those found in 
other species of Glossina ; scutellum dark grey with a very faint pale grey median 
line, margins buff; sides of the lateral thoracic depressions dark brown or almost 
black; pleurae dark grey. Abdomen resembling that of G. palpalis, but the 
transverse banding somewhat pronounced ; lateral margins with pale angular 
areas. Leys strongly and almost uniformly infuscated (dark or smoky grey) ; 
femora with the basal and inferior portions ochreous buff; hind tarsi all dark 
brown or almost black. Wings with the anterior transverse vein strongly and 
suddenly incrassate at its Junction with the third longitudinal vein. 
Genital armature of the male (fig. 12). Superior claspers (sc) sub-cheliform ; 
suddenly curved inwards distally, at a point about two-thirds of the distance from 
the base, so suddenly on the outer margin as to present an almost angular or 
elbowed appearance ; distal extremity furnished with a strongly curved tooth or 
claw-like process, the constriction being on the inner lateral margin ; proximally 
they are rather broad and have a distinct beak-shaped base, the apex of which 
points inwards ; bristles relatively short, those on the inner lateral margin more 
spinose in character and attached to transparent chitin. Inferior claspers (éc) 
very broad with a large and almost circular emargination on the outer lateral 
margin, distally ; stem of the foot-like extension slightly curved inwards, the 
terminal portion relatively narrow and bluntly pointed. Chitinous walls of the 
vesica (v) with a few squamose spines; it is possible that these form the rudi- 
mentary harpes. Connecting membrane as in other members of this group. ‘The 
juxta, vesica and some other organs became displaced in the process of mounting 
the armature, so that they lie in an asymmetrical position and present a somewhat 
peculiar aspect as may be gathered from the illustration. 
The only example which we possess of this small tsetse-fly was taken by 
Dr. J. O. Shircore, and was forwarded with a letter dated from Nimule, Nile 
Province, Uganda. Fortunately it proved to be a male otherwise it might have 
been passed over asa small dusky form of Glossinu palpalis. 
