104 Dr. C. P. Alexander on African Crane-flies 
male elongate, if bent backward extending to the end of 
the third abdominal segment ; distal segments long, the 
basal enlargement only about one-third the remainder of 
the segment. Head rich orange without darker markings. 
Prothorax orange-yellow. Mesonotal prascutum shiny 
obscure yellow, the three black stripes entirely confluent, 
only the humeral region and a small spot behind the out- 
curved ends of the lateral stripes being of the ground-colour ; 
scutum with the lobes shiny black, confluent with the area 
on the preescutum, median area of the scutum yellow; 
scutellum yellowish testaceous ; postnotum yellow, the 
surface of this sclerite and the scutellum densely covered 
with comparatively short black hairs. Pleura reddish yellow, 
sparsely variegated with whitish before the stigma and on 
the mesosternum. Halteres obscure brownish yellow, the 
stem before the knob slightly infuscated, the knobs usually 
brighter yellow. Legs with the cox and trochanters shiny 
orange-yellow ; femora black, the bases broadly yellowish ; 
tibiz and tarsi black. Wings with a smoky-brown tinge, 
most distinct apically in cells R, to M,; cell C light 
brown, Se darker brown ; a brown seam between Cu and 
the abortive vein immediately behind it ; stigma oval, dark 
brown, the proximal end with about eighteen macrotrichie ; 
veirs dark brown ; macrotrichize in the apex of cell R, 
variable in number, ranging from few to several. Venation: 
vein R, indistinct, evidently in process of atrophy, with but 
one or two macrotrichiz and these close to 7; Js nearly as 
long as the deflection of A,,; plus 7m ; cell MZ, broadly 
sessile ; fusion of WM; and Cu, longer than M beyond it. 
Abdomen orange-yellow, tergites two to five with the 
caudal margin deep black, the coloration continued for some 
distance ce; halad along the lateral margins of the segments ; 
remainder of the abdomen black excepting the pleural 
appendages which are pale; in the female, segments two to 
six are margined caudally and laterally with black ; in some 
specimens of the series, the caudal band is reduced to a large 
median area, but the lateral stripe persists in all cases. 
Male hypopygium with the ninth tergite comparatively 
narrow, the caudal margin but little produced, the two sub- 
median lobes lying im a shield-shaped caudal depression, 
separated from one another by a very deep median notch, 
their proximal angles nearly contiguous, their apices pro- 
vided with numerous blackened spicules ; dorsal surface of 
the tergite moderately convex. Outer pleural appendage 
light yellow, long and narrow, broadest just beyond the 
