176 Annals of the Soutli African Museum. 



Wings hyaline, tinged with yellow ; the apex slightly infuscated, 

 the stigma and costa fulvous, the nervures darker coloured. S • 



Length 12-13 mm. 



Transvaal. 



Antennae not much longer than the abdomen, not serrate, thickly 

 covered with a white dow^n, the apical joints blackish. Head closely, 

 distinctly punctured, covered with a white pile ; the apex of clypeus 

 broad, transverse. Thorax closely punctured ; the scutellum roundly 

 convex ; its apical slope is the longer. Metanotum deeply depressed 

 at the base ; the areola and posterior median area are only faintly 

 indicated, the keels bounding them being indistinct, not clearly 

 separated from the surrounding regions. Post-petiole broad, its 

 centre raised, bluntly keeled laterally ; the other segments are 

 closely punctured, the punctuation becoming weaker towards the 

 apex ; the gastrocceli are lateral, narrow ; the ventral keel is on 

 segments 3 and 4. Apical segment bluntly rounded. The sides 

 of the third and the sides and apex of the fourth are yellow. 

 Tarsi spinose. Areolet large, 5-angled, the recurrent nervure is 

 received in the middle ; the disco-cubital nervure has an indistinct 

 stump ; the transverse median nervure is interstitial. 



Except that the areola and other areas are not clearly defined, 

 this species agrees with the others I have included in the genus. 



EOSSELLA, gen. nov. 



Metanotum indistinctly areolated ; the areola large, wide, open at 

 the base and apex, longer than wide ; the other areas obsolete, the 

 segment short, closely rugosely punctured. Scutellum large, flat, 

 not margined. Head, if anything, narrower than the thorax. 

 Centre of face raised, not separated from the clypeus by a furrow, 

 apex of clypeus almost transverse ; the lateral foveas large. There 

 is a tubercle between the antennae. Labrum projecting. Temples 

 broad ; occiput roundly incised, margined. Wings fuscous viola- 

 ceous ; the areola large, 5-angled, wide in front ; the recurrent 

 nervure received shortly beyond the middle ; the transverse median 

 nervure almost interstitial. Post-petiole w'idely dilated, weakly 

 punctured in the middle, more strongly on the sides ; the gastrocceli 

 longer than wide ; the segments are almost smooth. 



The antennas are short and thick, the third joint is not much 

 shorter than the following two united. Legs short and stout ; the 

 hind coxae large ; the tarsi spinose. Malar space large. Disco- 

 cubital nervure unbroken. Ventral keel on the second and third 

 segments ; the apex of the abdomen bluntly pointed. 



