﻿14 Anixils of the Sonlh African Mi(xeiiiii. 



y (10). First posterior cell broad and less attenuate outwardly; discoidal 

 coll large ; proboscis long ; tliird antennal joint reddish ; large size. 



eurhinatu.'i, sp. nov. 



10 (9). First posterior cell narrow and acute outwardly ; discoidal cell very 



small ; proboscis very short ; third antennal joint black ; smaller 

 .size ...... brachyrrhy^ichus, sp. nov. 



11 (S). Scutellum greyish black, like the thorax-, frons of female much 



narrower ; hairs of body longer ; wings entirely hyaline ; proboscis 

 short; species of smaller size . . . [/Zo?/Hh(s, sp. nov. 



12 (7). Proboscis entirely l)lack, or only red on the under side ; third antennal 



joint usually Ijlack ; discal cross-vein placed on or a little after the 

 middle of the discoidal cell. 



13 (14). Antennae entirely black, but with whitish hairs on the base; palpi 



black ; proboscis entirely black ; femora broadly black at base, but 

 with yellow spines ; abdomen with rows of black hairs at the hind 

 lîorders of the segments; great size . . impunis, hoew. 



M (13). Antennae with red base or entirely red ; palpi red; prolioscis often 

 red below ; femora entirely yellow; abdomen without rows of ])lack 

 hairs ; usually smaller. 



15 (18). First posterior cell long and exceedingly attenuate outwardly, 



very acute, with a short stalk ; second antennal joint red like the 

 first. 



l(i (17). Abdomen broadly red on the sides and on the hind borders of the 

 segments ; hairs of body yellow ; frons of female of ixsual width ; 

 third antennal joint short ; first posterior cell with a short but 

 distinct stalk ; proboscis red below . . mvndus,lioevf. 



17 (16). Abdomen entii'ely greyish black, or only with a narrowly red hind 

 border to the segments ; hairs of body grey ; frons of female distinctly 

 broader ; third antennal joint longer ; first posterior cell ver\' briefly 

 stalked, almost sessile ; proboscis entirely black. 



sessilis, sp. nov. 

 First posterior cell of usual shaiie, blunt outwardly, with a long 

 stalk ; second antennal joint usually black like the third. 

 Antennae entirely red ; proboscis entirely black ; scutellum without 

 black boi'der ; abdomen entirely black with dense and equal yellowish 

 hairs ...... xanthocerus, sp. nov. 



Antennae with the third joint black, and usually with the second 

 also black. 



Scutellum with a broad black hind border ; abdomen and jjrobosc-is 

 entil'oly black ..... marginellus, sp. nov. 



Scutellum without black border. 



Very small species ; pi'oboscis black, oi- only dark red below ; abdomen 

 with yellow sides, end and hind border of segments i-ed ; hairs of 

 body usually whitish .... paterculus, Walk. 



Species of lai'ge size ; proboscis red below, abdomen entii-elj- black. 

 Head and end of abdomen with yellowish hairs ; face dark ; small 

 size ....... f Meatus, sp. nov. 



2U (25). Head and end of abdomen with white hairs; face yellow; large 

 size ....... nificeps, Macq. 



