172 Miss G. Ricardo on 



joints with thick black pubescence. Forehead black, with 

 black bristles and hairs. Thorax covered with short dense 

 yellow hairs. Breast-sides have some grey tomentum and 

 black pubescence. Scutellum and abdomen have similar 

 pubescence to that of the thorax ; genital organ black, 

 shining, with black pubescence. Underside of abdomen 

 black, with yellow hairs. Legs black; the anterior and 

 middle coxse covered with grey tomentum ; the pubescence on 

 the legs consists of long light yellowish hairs, except on the 

 apex of tibite and first joint of tarsi, which are clothed under- 

 neath with dense fulvous pubescence, and the last four joints 

 of all the tarsi, which have black pubescence; hind tibiae 

 much thickened, red at the extreme base, no bristles on the 

 underside. Halteres yellow. Wings dark brown, clear on 

 the basal halt, veins dark brown. 



Length 13 niillim. 



Type (male), Durban {W. L. D.). 



Hcplistomera nolihs, Lot w, Dipt. Siidafiik. p. 120 (1*60). 



Two males and two females from Fort Johnston, Nyasa- 

 land (P. Rendall) ; one male from Lydenburg District 

 [Zutizenkd). 



Laxenecera sonata, Loevv, Dipt. Siidafiik. p. 123 (I860). 

 One female from Pretoria (W. L. 1).). 



Laxenecera albicinta, Loevv, Dipt. Sudafrik. p. 122 (1860). 

 One female from Pretoria {W. L. D.). 



Dasythrix brachyptera, Loew, Bemerk. iiber. Fam. Asiliden, 

 p. 21 (Berlin, 1853) ; id. Dipt. Sudafrik. p. 126 (1860). 



D. brachyptera, ? , Loew, and D. stenura, £ , Loew (Dipt. 

 Siidafiik. p. 125), are probably the male and female of one 

 species, as Loew himself suggests, and Gersta:ker, in Decken's 

 Reisen in Ost-Afrik., concurs; if this is the case, brachyptera 

 having priority must be adopted. 



One male from Pretoria (W. L. D.) ; two females from 

 Pretoria {W.L.J).). 



These three specimens from the same place seem to con- 

 firm the above supposition, being very similar in general 

 appearance. 



Promachus fuhipes, Macq., Dipt. Exot. i. (2) p. 93 (1838) ; 

 Loew, Dipt. Siidafiik. p. 132 (1860). 



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



