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



This interesting fly is readily told from the other known 

 species of the genus, nine in number, by the long vein R2+3 

 and the very heavy wing-pattern. Ceratocheilus edwardsi is 

 dedicated to Mr. F. W. Edwards in appreciation of his 

 critical work in determining the true status of the subfamily 

 Ceratocheilinae of Wesche and the synonymy of the genera 

 therein included (Ann. & Mag. Nat. Hist. ser. 8, vol. viii. 

 pp. 279-283, 1911). 



Genus Elepiiantomyia, Osten-Sacken. 



Elephantomyia nitidithorax, sp. n. 



Rostrum longer than the body, dark brown ; head grey ; 

 mesonotal prsescutum shiny brownish yellow with three 

 confluent shiny black stripes ; pleura reddish yellow with a 

 sooty-black dorsal area; legs dark brown; wings faintly 

 brownish, stigma dark brown ; abdomen dull brownish 

 yellow, the tergites indistinctly ringed with darker brown. 



Male. — Length (excluding rostrum) about 7 mm. ; wing 

 8 mm. ; rostrum ab ut 6 # 8 mm. 



Kostrum and palpi dark brown, about as long as the body. 

 Antennae dark brownish black, with fifteen segments, as in 

 the genus, the flagellar segments with very long verticils. 

 Head grey, the vertex between the eyes very narrow. 



Cervical sclerites dull yellow. Pronotum dark brown. 

 Mesonotal prsescutum shiny brownish yellow with three 

 confluent shiny black stripes, the humeral angles of the 

 ground-colour ; scutum shiny yellowish brown ; scutellum 

 and postnotum deep brownish black. Pleura shiny reddish 

 yellow; a sooty-btack triangular area on the mesepisternum 

 just beneath the margin of the mesonotal praescutum ; 

 immediately behind this blackened area and beneath the 

 wing-root a strong erect seta, llalteres brown, the knobs 

 dark brown. Legs with the coxie and trochanters brownish 

 yellow ; remainder of the legs dark brown, the bases of the 

 fore femora narrowly dull yellow. Wings with a faint 

 brownish tinge, a little darker at the apex ; stigma oval, 

 dark brown ; veins dark brown. Venation as in E. weshvoudi, 

 Osten-Sacken (genotype), except that Rs is a little longer, 

 and angulated or slightly spurred at origin : Sc ending just 

 before the fork of Rs ; basal deflection of Qu x but a short 

 distance beyond the fork of M, at less than one-fourth the 

 length of cell 1st M 2 . 



Abdominal tergites dull brownish yellow, the basal and 

 posterior margins of the segments narrowly and indistinctly 



