58 Annals of the South African Museum. 



13 (10). Scutellum red; proboscis long; wings very broad and long 1 , and 

 broadly infuscated ; discoidal cell almost three times as long as 

 broad ; basal comb developed ; femora with black stripes below. 



vittipes, sp. nov. 



1-4 (9). Proboscis red above, at least near the base; frons of the known 

 females very broad. 



15 (10). Scutellum red; body grey, with pale or white fur; basal comb of the 

 wings rather developed . . . rariegatus, Macq. 



1(5 (15). Entire body and Scutellum of a deep black colour with dark reddish 

 fur; basal comb smaller . . . tripunctatus, Macq. . 



DISCHISTUS CAPITO, Loew (1860). 



A species of great size (for the present genus), very near mysta.r, 

 but at once distinguished from it and from the others by the characters 

 .given in the table. 



( h'iginally described from Caft'raria. There is in the collection a 

 male specimen f rom Grahamstowu, May, 1885 (Billing-hurst), measuring 

 12 mm. of length with 25 mm. of wing-spread ; it was named by 

 Bigot Dischistus heterocerus, Macq. ; but Macquart in its description 

 says that the third antenual joint is spindle-shaped and that the legs 

 are yellow characters which apply better to mystax, with which 

 therefore it must be placed as a synonym. 



The male was unknown to Loew and is hitherto undescribed ; it is 

 very like the female. The eyes have equally small areolets, and are 

 set close to each other on the frous but separated for a distance which 

 is as broad as the ocellar tubercle ; the genitalia are black, with reddish 

 borders to the lamellae ; the black bristles of the abdomen form 

 complete rows and are very numerous. All the femora are provided 

 -on the underside with long and numerous, rigid, black hairs, with 

 some yellow ones intermingled chiefly near the base and on the middle 

 pair. The pulvilli are only a little shorter than the claws. Wings 

 with the discoidal cell long, the two middle segments of its lower vein 

 being of equal length ; basal comb not distinct ; alula very small and 

 destitute of fringe. 



DISCHISTUS PLUMIPALPIS, sp. nov., <$ . 



Closely allied to mystax and capita, but at once distinguished by the 

 long proboscis, the feathered palpi and the much more approximate 

 eyes of the male. 



Type (J, a single specimen from G-rahamstown (Cape), 1883. 



Length of the body 10'5 mm. ; spread of the wings 22 mm. Head 

 black, grey-dusted ; occiput flat, concave in the middle, with rather 



