Diptera from South Africa. 165 



Tabanus nigrokirtus, ? , sp. n. 



One female in British Museum Coll., labelled " Bonny, 

 July 1872, 73. 66"; two females in Mr. Distant's Coll., 

 labelled " Bonny, July 1872." 



Belongs to division BA&2 of Loew. Eyes naked. No 

 appendix. Fore tibiae not thickened. Wings shaded. 



Reddish brown. Face red, with white pubescence ; palpi 

 yellow, with black pubescence. Beard white. Forehead 

 greyish, with a long red-brown stripe in the centre. Antennas 

 red, the apex of the joints black ; pubescence on the first two 

 joints black, on the third greyish. Thorax with three in- 

 distinct black stripes, the middle one divided by a narrow 

 median line ; covered with hoary tornentum and short black 

 pubescence, with longer black hairs on the sides; breast red, 

 with grey pubescence and tornentum. Scutellum red, with 

 some hoary tornentum. Abdomen dark red, with a narrow 

 dorsal greyish line extending from the first to the fifth seg- 

 ment ; the whole surface of the abdomen is covered with 

 short black pubescence, which is usually thickest on the 

 fourth and following segments ; on the extreme lateral 

 margins there are some white hairs; in one specimm the 

 median line is indistinct: the underside of abdomen is lighter 

 red, with less black pubescence and some white hairs; the 

 posterior margins of the segments are lighter in colour and 

 only the extreme apex dark. 



Legs reddish yellow, the coxas with grey pube^cmee; 

 the anterior femora, the apical half of the tibise, and all the 

 tarsi are blackish, and sometimes the posterior femora ; the 

 hairs on the outer edge of the femora are white, and there is 

 some white pubescence on the tibia?, elsewhere it is black. 



Wings grey, on fore border yellowish, veins brown ; no 

 appendix on fork of third longitudinal vein. 



Length 16 millim. ; width of head 3 millim. 

 Type (female), Bonny, July 1872, 73. 6(3, in British Mu- 

 seum Coll. 



Atylotus nigromaculatus, $ , sp. n. 



Thirteen females ; five from Pretoria, the rest from Fort 

 Johnston, Nyasaland. 



Resembles Tabanus bipunctatus, Wulp (' Notes Leyden 

 Museum,' vii. p. 72, 1885), from West and South Africa, in 

 having two black spots on the forehead ; but the eyes have a 

 band which Wulp expressly mentions as non-existent in his 

 species, and the abdomen does not agree with his description. 

 I therefore venture to make it a new species. 



