112 Dr. C. P. Alexander on African Crane-flies 
pleura yellow, conspicuously spotted with dark brown; 
halteres brown, the tips of the knobs yellow; femora 
brownish yellow, the tips dark brown; wings greyish sub- 
hyaline ; no macrotrichiz in cell R; ; abdomen orange, the 
tergites narrowly ringed caudally with black. 
Male.—Length 10°8 mm. ; wing 10°8-11 mm. 
Frontal prolongation of the head pale reddish yellow; 
palpi brown. Antenne rather long and slender, if bent 
backward extending approximately to the base of the abdo- 
men ; scape obscure reddish ; first flagellar segment reddish 
brown ; remaining flagellar segments black. Head obscure 
orange-brown ; occipital area shiny, large but ill-defined ; 
vertical tubercle entire. 
Pronotum narrowly obscure yellow medially, the sides 
dark brown. Mesonotal prescutum yellow with three black 
stripes, the median stripe much paler than the lateral 
stripes; scutum yellow with the lobes largely black ; 
scutellum testaceous ; postnotum with the median sclerite 
yellow, black posteriorly ; lateral sclerites nearly surrounded 
by a U-shaped black mark. Pleura yellow; a conspicuous 
dark brown area on the mesepisternum and another on the 
sternum between the fore and middle coxe; a narrow 
vertical black line between the mesepisternum and mesepi- 
meron. Halteres brown, the knobs tipped with yellow. 
Legs with the coxe brown, the base of the fore coxe 
blackened ; trochanters reddish yellow ; femora brownish 
yellow, the tips rather narrowly dark brown; tibie dark 
brown, the bases paler ; tarsi brownish black. Wings grey- 
ish subhyaline, the subcostal cell pale brownish yellow ; 
stigma brown; veins dark brown; wing-tip indistinctly 
darkened ; no macrotrichiz in the end of cell #;. WVenation: 
cell M, narrowly sessile. 
Abdomen with the first tergite black ; remaining tergites 
orange, narrowly ringed caudally and lined laterally with 
black, the seventh segment entirely black ; hypopygium 
reddish. Male hypopygium with the lateral lobes of the 
ninth tergite very narrow and subpointed. Eighth sternite 
rather deeply notched medially and the surface covered with 
long yellow bristles. 
Hab. West Africa. 
Holotype, 3, Zungeru, Northern Nigeria, November 1910 
(J. W. Scott-Macfie). B.M. no. 1911. 417. 
Type in the collection of the British Museum (Natural 
History). 
Nephrotoma nigeriensis bears a general resemblance to 
