Sont/i Af'i(\iu iiinl Chifnt((l Asilin;t'. 41 



nt the sides. Qeuittilia sliort, stout, reil, witli sliDit white 

 |)ul)escerice, tlie ])iibe3cence on dorsum of ahdoiiieii slioit, 

 white. L*'y^ red(lish, the t'einoni bhick above and the tibite 

 black at their a|)ice3, more widely so on the hind pair ; the 

 bristles all while, a few Shick ones on the tarsi ; the puljes- 

 »!ence white, on the undersiilo of femora ant! til)i;e lonji^er, 

 Wiii(js about a third shorter than the aixlomen, veins reddish. 

 Feviale identical; owing to the greater iengtli of the abdo- 

 men, the winj;8 are still shorter in compaiison. Oo>i>ositor 

 long, shining red, with two spines at apex. 



Ahhnus stenuruSj Loew. 



Dipt. Siid-Alrik. i. p. 130(1800), et Wien. Eut. Mon. vii. (1803). 



Males and females from Deelfontein, S. Africa (Col. 

 Sloggett), and a male from Pretoria. 



The species was apparently described from one female 

 specimen. It seems very nearly allied to Alcimus tristrigalus, 

 and may prove to be only one species. 



Loew describes it as " yellowish white pollinose.*' 'Y\\e. 

 chief difference aj)pears to be in the coloin* of the legs ; in 

 this species only the underside of the fore femora and base of 

 tibiie are chamois-coloured or redtlisli, elsewhere the colour is 

 bla< kisli. 



The sj)ots on the abdomen are, j)erhap^, narrower. 



Loew gives the length as .T2|-o6 mm. In these specimens 

 the males laiige from 2^-37 mm., the females 30 mm. 



Alcimus porreduSf Walker. 



Dipt. Ins. Saund. i. p. \2() [Ti-upmwa] (ISol), et List Dipt, vii., Suppl. 3, 

 p. 013 [Trupanea^^ (1855). 



This is placed under Pmmachu'i in Ktrtesz's Cat. 



Type (male), ?S. Africa (Walker Coll.;. 



Type (funalr), S. Africa. 



A male from Dunbrody, Cape Colony [Rev. W. CJWil}, in 

 South African Coll, 



A reddish species, apparently not described under aiiv 

 other name, with reddish legs, only the femora with a black 

 stripe below; all bristles on the legs black. Abdomen with 

 laige broad black s|)ots and with black bristles at the sides. 



Length, c? 30, $ 34 mm. 



Male. — Face covered with yellowish tomentum. Moustache 

 rather scanty, yellow, with two or more large black bristles 

 near th'' oral opening. Thorax (denuded) reddish, with the 



