niptera from South Africa. 169 



it is lung ; tlie uiulcrsiJc ot abdomen id ;^rey, with some 

 scattiTctl white hairs. Ijfgs bhick ; the coxiu ^rey, with 

 hui;; white hairs; the tetiioia and til)iuj with .sliort white 

 puhescence; all tiic^ bristh-s on le<^.s are white, with the cx- 

 ce|)ti<)ii ot some on the last tour tars il joints. Ilalteres bnnvn. 

 Wings clear, grey shading on the fore border as tar as the 

 second longitudinal vein, e.xtending into the submarginal cells, 

 where it gradually ends in a point; it also tills the ceiitrft ol' 

 the first and fourth posterior cells, and there is a small irre- 

 gular patch of it in the basal halt of the second posterior 

 cell ; veins yellow ; the first p(jsterIor cell is nearly closed 

 in some sj)ecimens, in others hartlly narrowed. 



Length 27 miliim. 



Type (temale), Pienaars River (IF. L D ). 



The female is very similar, but the last tliree segments of 

 the abdomen are wholly black, though on the side of the sixth 

 the grey stripe is present ; the abdomen is more shinin'^'- and 

 less pubescent. The pubescence on the legs is a little 

 slighter. The first posterior cell of the wings varies a^ 

 above. 



]>ength 30 miliim. 



Type (temale), Pienaars River ( W.L. D.). 



'Ihese tine flies were found fiying near the grotMid, on 

 bare open veldt. (Jne female was caught attacking a grass- 

 hopper. 



Microstylum niyrcscens, (J & ? , sp. n. 



'I'wo males and two females from Angola, in British Museum 

 Coll., 7G. y-> and 73. GG ; one male and two females from 

 Angola [Mont'iro), in Mr. Distant's (Joll. 



belongs to division B Z> of Loew. — Moustache confined to 

 the lower part of the face, thin, with very stout bristles inter- 

 mixed. 



^ . Black, i'ace brown, with yellowish or whitish tomen- 

 tum ; the moustache consists of four large black bristles, 

 intermixed with a very few black hairs; palpi black, the 

 tips reddish, clothed with black hairs. Beard black. An- 

 tennie black, the first and second joints more or less red with 

 black hairs and bristles, Foreheail with an oblong shininor 

 black spot on the vertex, contitmed as a narrow black line 

 to the antennie, sides greyish with black hairs and bristles. 

 The hind part of head grey, with black hairs. The collar 

 covered with greyi.sh tomentum, jeddish on the posterior 

 half in the centre. Thorax black ; the shoulders, sides, and 

 posteri(jr halt redtlish, with greyish tomentun), forming one 

 central broa-l .-^triix- divided m the middle, and one mi eaeh 



