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



female ; base of the wing before the arculus orange-yellow ; 

 veins dark brown. Cells of the wing beyond the cord with 

 strong macrotriehia ; in the centre of cell Cu these macro- 

 trichia continue basad almost to the level of the origin of 

 Rs. Venation : Sc x ending about opposite r, Sc 2 far from 

 the tip of Sc x , located near the inner margin of the white 

 baud ; r on R 2 just beyond its origin ; cell 1st M 2 moderately 

 broad, the basal deflection of Cu x inserted at from one-third 

 to one-fourth its length. 



Abdomen with the six basal segments orange, the remainder 

 of the abdomen deep black. 



Hub. Nyasaland. 



Holoti/pe, <$, Mt. Mlauje, January 4, 1913 (S. A. Neave). 

 Presented by the Entomological Research Committee, 1913. 

 236. 



All topotype, ?, January 23, 1913. Presented by the 

 Imperial Bureau of Entomology, 1915. 58. 



Type in the collection of the British Museum (Natural 

 History). 



This" exquisite fly is readily told from G. elegans (Wiede- 

 mann) by the apically pubescent wings and the very different 

 coloration of the body and wings. 



Gnophomyia perelegans, sp. n. 



Head black, light grey-pruinose ; thorax and abdomen 

 metallic greenish blue ; halteres brownish black, the knobs 

 conspicuously pale yellow ; legs black; wings dark brownish 

 black with two broad whitish transverse bands ; distal cells 

 of the wing pubescent. 



Female. — Length about 95 mm. ; wing 8*6 mm. 



Rostrum and palpi dark brownish black. Antennae black, 

 somewhat longer than in the corresponding sex of G. per- 

 amcena. Head broad, black, light grey-pruinose. 



Entire thorax metallic greenish blue, the postnotum and 

 pleura sparsely grey-pruinose. Halteres dark brownish black, 

 the knobs conspicuously pale yellow. Legs with the coxae 

 blue-black, sparsely pruinose ; remainder of the legs black. 

 Wings dark brownish black, with two large whitish cross- 

 bands, the first lying just before the level of the origin of lis, 

 extending from vein R through cells R, M, Cu } across the 

 base of 1st A into cell 2nd A, but not reaching the wing- 

 margin ; the second band is larger, lying just before the cord, 

 extending across cells 1st R u R, M, and Cm, narrowly inter- 

 rupted along vein Cu in the latter cell ; veins brownish black. 

 Macrotriehia almost as in G.peramama, but traversing the 

 outer white band in cell Cu. . Venation : Sc slightly shorter 

 than in G. perawce.ua, Sc x ending just before the fork of R 2+ 3 ; 



