﻿(J.I t/w Buiiibijliul lùiiuui (>/ Suiil/i Africa {DiplrvK). 57 



Fauna, viz. the groups of iiujstax and of !<eriafiis ; and only these two 

 are in<leed represented in the collections of the South African Museum. 

 Some species previously included in the genus will }»e removed to the 

 new genus Gonarfhriix. All the species here enumerated have the eyes 

 of the male separated or only approximate ; they can he distinguished 

 as follows : 



1 (i). Species of great size and of broad, stoiit body ; motaplourae bare ; 



antennae widely separated at the base, with the first joint tliickencd ; 

 hind femora without bristles below, only witli rigid black hairs ; 

 tibiae witli lilack spicnles ; wings short, with the discal cross-vein 

 placed nnich after the middle of the diseoidal cell ; upper brancli of 

 the cubital fork less retreating ; alula small and not fringed (group 

 mystax). 



2 {W). Proboscis short, not longer than tlie thorax ; palpi concealed ; femora 



black, with only tlie end yellow and with numerous rigid black hairs 

 below ....... capito, Loew. 



;? (2). Proboscis as long as the body ; paJpi long and feathered ; femora 

 yellow, withoitt lilack hairs below, or only with a very few thin ones tm 

 the hind pair. ..... ^Aumipalpis, sp. nov. 



4. (1). Species of small size and of more elongate body ; metapleurae haired ; 

 antennae approximate at base, with non-thickened first joint ; hind 

 femora with yellow bristles beloAV ; tibiae with yellow spicules ; discal 

 cross-vein set much before the middle or rarely in the middle of the 

 diseoidal cell ; upper branch of the cubital fork much retreating, 

 alula broad and fringed (groiip seviatus). 



ô (()). Wings very short, with the discal cross-vein placed on the middle of 

 the diseoidal cell, Avhich is short and broad, triangular ; the two basal 

 joints of the antennae, scutellum and legs entirely of a yellowish - 

 red colour ; pulvilli long . . . rnhicimdus, s^.woy. 



t) (.")). Wings of usual length, with the discal cross-vein set much before the 

 middle of the diseoidal cell which is variable in shape ; base of the 

 antennae, sciitelhrm and legs never completely yellow at the same 

 time ; pulvilli iisually miich shorter than the claws. 



7 (S). Antennae, scutellum and legs entirely black ; diseoidal eell as long as 

 broad ; body clothed with silvery long hairs and below these with 

 yellow tomentum ..... niveiis, Macq. 



s (7). Legs mainly yellow, at least on the tibiae; diseoidal cell elongated, 

 often very much longer than broad. 



î> (1-4). Proboscis entirely lilack ; frons in the known females narrow. 

 ]<i (13). Scutellum black; proboscis short; wings small, entirely hyaline; 

 diseoidal cell rather short, not twice as long as broad ; ftunora not 

 black striped. 



11 (12). Femora entirely yellow, without distinct spines below; wings with 



rather distinct basal comb .... ovatiis, sp. nov. 



12 (n). Femora black, with distinct bristles below on the hind pair ; wings 



Avitli no distinct basal comb .... se)-/«<tfs, Wied. 



