in the British Museum. 25 



the scapal segments dark brown, the flagellum broken. 

 Head dark brown, the cheeks with long curved setae. 



Mesonotum dark brown without apparent darker markings, 

 the pleura a little paler. Halteres broken. Legs with the 

 coxa? and trochanters testaceous brown ; remainder of the 

 legs dark brown, the tarsi somewhat paler brown. Wings 

 hyaline; siigma narrow, indistinct, pale brown; veins dark 

 brown. Venation : Sc ending just before the fork of Rs, 

 Sc 2 at the tip of S^; Rs long and almost straight; cell 

 1st M 2 open by the atrophy of m; basal deflection of Cu\ 

 inserted a short distance beyond the fork of M, the distance 

 between it and the fork of M about one-third the fusion of 

 Cii\ and M ?l . 



Abdomen dark brownish black, the tip injured. 



Hub. Sierra Leone. 



Hulutype, sex?, Daru (Dr. Murphy). 



Presented by the Entomological Kesearch Committee. 

 1913. ;i94. 



Type in the collection of the British Museum (Natural 

 History). 



Rhamphidia imperfecta may be told by the open cell 1st M 2 , 

 a character possessed only by R. amurounensis, Alexander, 

 among the known Ethiopian species of the genus. This 

 latter fly is the type of tlie subgenus Rhamphidina, distin- 

 guished by the shorter Sc, the very divergent veius R 2+ % an d 

 -^4 + 5 with the consequent widening of cell /? 3 , and the loca- 

 tion of the basal deflection of Cu x before the fork of M. 



Genus Teucholabis, Osten-Sacken. 

 Teuclwlabis rubrithorax, sp. n. 



IIe;;d black ; thorax shiny reddish yellow throughout ; 

 wings subhyaline with three narrow brown cross-bands, the 

 last occupying the wing-tip far beyond tie outer end of ceil 

 1st M 2 ; abdomen black, the ovipositor reddish horn-colour. 



Female. — Length about 7'5 mm.; wing 6\2 mm. 



Rostrum slender, nearly as long as the Lead, dark brown ; 

 palpi dark blown. Antenna? dark brownish black, the 

 scapal segments a little paler brown. Head black, the 

 anterior part of the vertex sparsely grey-pubescent. 



Neck brown. Pronotum reddish. Mesonotum shiny 

 redddish yellow without distinct darker stripes. Pleura 

 reddish yellow. Halteres dark brown, the knobs light 

 yellow. Legs with the coxa? and trochanters reddish yellow ; 



