82 Annals of the South African Museum. 



apex almost transverse. Ocelli very large, rufous. Sides of scutel- 

 lum keeled ; the keels not meeting at the apex, towards which they 

 become fainter ; the lower part of the apex is bordered by a stouter, 

 more rufous, rounded keel. Base of metanotum deeply, widely 

 depressed ; there are no transverse keels ; the surface, beyond the 

 basal depression, is irregularly obliquely, not very distinctly striated, 

 punctured. Propleurae smooth ; the mesopleurge closely punctured,, 

 closely obliquely striated in the middle ; the upper part of meta- 

 pleurjfi somewhat stoutly, obliquely striated. Apical abscissa of 

 radius roundly curved towards the front ; transverse cubital nervure 

 half the length of the recurrent, as long as the apex of the third 

 discoidal cellule. The transverse median nervure is received behind 

 the transverse basal. The basal horny point is triangular, its base: 

 rounded ; the second irregularly crescent-shaped. $ . 



Length 17 mm. 



Damaraland. Walvisch Bay. 



PLEUEONEUEOPHION, Ashm. 



Pleuroneurophion pruinosus, sp. nov. 



Eufous, densely covered with a whitish, silky pile ; the eye orbits 

 narrowly on the lower half of the inner, the outer from the inner 

 edge of the lateral ocelli ivory-white ; wings hyaline, the stigma dark 

 rufous, the costa and nervures black. Antennae black, dark rufous, 

 at the base. $ . 



Length 33 mm. 



Natal. Durban. 



Head, pro- and mesothorax smooth ; the metanotum behind the 

 basal keel irregularly wrinkled ; the rest coarsely, transversely, 

 closely reticulated. Scutellum with a stout keel bordering the sides ; 

 they meet at the apex in the middle, where they are continued half- 

 way down the apical slope as one ; the apical half has a blistered 

 appearance and is covered with white pubescence ; the lateral slopes 

 behind the keels are more thickly covered with longer, soft white 

 pubescence ; there are four or five longish stout keels on the apical 

 slope. Post-scutellum clearly separated by a depression from the 

 scutellum ; it is transverse at the base, the apex roundly narrowed ; 

 its apex has a longish steep slope, and is keeled down the middle. 

 Petiole cylindrical ; the post-petiole distinctly widened. Transverse 

 median nervure received distinctly behind the transverse basal ; the 

 disco-cubital nervure broadly rounded beyond the middle, not 

 angled. Transverse median nervure in hind wings broken near the 

 top of the lower third. 



