Diptera from South Africa. 177 



Wings clear, a grey shadow in the extreme apex extending 

 to the third longitudinal vein ; the veins brown. 



Length 18 millim. 



Type (male), Fort Johnston, Nyasaland (P. Randall). 



? . — The black bristles of the moustache are only at the sides 

 of the mouth, those on the back of the head are mostly white. 

 The last segment of the abdomen is wholly black, shining; 

 the bristles on the side of abdomen are wanting, those on the 

 posterior cox* and the greater number on the legs are white. 



Length 22 millim. 



Type (female), Fort Johnston, Nyasaland (P. Rendall). 



Ommatlus fuscovittatus, $ , sp. n. 



One male from Pretoria ( W. L. D.) . 



In general appearance this resembles O.jaculator, Walker, 

 but is distinguished by the first two joints of the antennae 

 being red. 



Brownish grey. Face clothed with silvery- white tomentum ; 

 moustache composed of white hairs, with two black bristles on 

 each side ; a few white hairs on the middle of the face, reaching 

 to the antennas. Palpi black, with white hairs. Beard white. 

 Antenna?, red, the last joint and the bristle black ; the hairs 

 on the first two joints are black. Forehead grey, with 

 yellowish tomentum, the hairs on the vertex and at the sides 

 black. The hind part of tne head with a row of black bristles. 

 Thorax covered with silvery-grey tomentum; the stripes very 

 distinct, brown ; the median stripe appears widened at its 

 anterior border and is divided in the centre by a greyish line ; 

 the short pubescence and the bristles black. Scutellum 

 brown, with two black bristles. Breast-sides covered with 

 silvery-grey tomentum, slightly fulvous in the centre; the 

 scattered hairs are white. 



Abdomen brown, with cinereous segmentations ; the pubes- 

 cence white, the small bristles on the sides of the last 

 segments black ; the genital organ shining black, the under- 

 side brown. Legs light yellow ; the coxte the same colour as 

 the breast-sides, with white pubescence ; the knees, the apex 

 of the first four tarsal joints, and the fifth, joint black ; the 

 fore and middle femora with white hairs on the underside, 

 the middle and posterior femora armed with short black 

 bristles; the short pubescence on the legs is black; the 

 bristles on the outer edge of the anterior tarsi and on the first 

 joint of the middle tarsi are white, elsewhere black. 



Ann. d: Mag. N. Hist. »Ser. 7. Vol. vi. 12 



