38 Dr. C. P. Alexander on African Crane-flies 



yellow ; abdominal tergites black, narrowly ringed caudally 

 with wliite. 



Female. — Length 4'4 mm. ; wing 4'4 mm. 

 Rostrum and palpi dark brown. Antennfe dark brown, 

 the scapal segments and first flagellar segment a little paler ; 

 flagellar verticils not greatly elongated (in the female). 

 Head pale yellowish, the centre of the vertex brown. 



Mesonotum dark brown, the anterior margin of the prffi- 

 scutnm a little paler ; scutal lobes adjoining the wijig-roots 

 |)ale; posterior half of the scutellum pale. Pleura dark 

 brown with a narrow, white, longitudinal stripe extending 

 backward from the fore coxae. Mesosternum dark brown. 

 Halteres yellow, the knobs brown. Legs with the coxse and 

 trochanters light yellow, contrasting with the dark colour of 

 the body ; remainder of the legs broken. Wings with a 

 smoky tinge, sparsely marked with darker as folloAvs : a spot 

 at arcnlus; a spot at the origin of 7?^; stigma rectangular, 

 continued backward as a narrow seam along the cord ; outer 

 end of cell 1*/ M^ seamed with pale brown ; a brown seam 

 on i?2 ; a spot at the tip of R^ ; the basal cells of the wing 

 immediately beyond the aivnlns, cell R^ before and beyond 

 the stigma, cell R^ and the tips of cells R^, R^, M^, and 2iid 

 M2 paler than the rest of the wing ; veins dark brown ; costa 

 dull whitish, variegated with brown at Rs, stigma, and tips 

 of veins R^ and R.^ Venation: Sc moderately elongated, 

 Sci ending about opposite the origin of Rs ; Rs and R-^^z 

 nearly equal ; 7?2 short, straight, almost perpendicular to the 

 end of vein -Ko+s 5 cells R^ and i?g with their inner ends in 

 oblique alignment ; cell 1st M^ closed ; basal deflection of 

 Cui a short distance before the fork of M — this distance less 

 than one-half of R^. 



Abdomen black, the tergites narrowly ringed caudally 

 with whitish ; sternites similar, but the pale caudal margins 

 less distinct. Valves of the ovipositor acute, the tergal 

 valves much longer than the sternal valves, their tips gently 

 upcurved. 



Hub. Northern Nigeria. 



Ho/otype, ?, Ilorin, July 16, 1912 (Dr. J. TV. Scotf- 

 Macjj'e). 



Presented by the Imperial Bureau of Entomology, 1 915. 58. 

 Type in the collection of the British Museum (Natural 

 History). 



Gonomyia {Gonompia) venustipes, sp. n. 

 Antennse yellow ; mesonotal prfescutura whitish, rich 

 cinnamon-brown sublaterally, the white lateral triangles 

 delimited by dark brown ; scutellum white, the caudal 



