Descriptions of New Species of Parasitic Hymenoptera. 179 



Platylabus albo-ornatus, sp. nov. 



Black ; the thorax, except the breasts, red ; the face, clypeus, 

 inner orbits narrowly, a narrow line in the middle of the outer, 

 mandibles except the teeth, palpi, the apical half of the fifth and 

 the whole of the sixth and seventh abdominal segments above, 

 white ; the four anterior legs whitish in front, for the greater part 

 black behind, the hind legs black, the calcaria white. Antennae 

 fuscous, the flagellum black above, the scape white ])elow. Wings 

 hyaline, iridescent, the nervures and stigma black. ^ . 



Length 10 mm. 



Natal. Estcourt. 



Antennae short, stout, as long as the abdomen, serrate towards 

 the apex. Face and upper part of clypeus closely punctured, 

 covered with short, white pubescence. Vertex below the ocelli 

 closely, strongly punctured, smooth behind. Thorax closely, 

 strongly punctured ; the base of the scutellum only sparsely 

 punctured ; the keels on the scutellum are distinct to the apical 

 slope. Areola as long as its width at the apex ; the base rounded, 

 the apex not quite transverse; it is stoutly, irregularly striated, 

 depressed round the edges ; the basal areas almost smooth ; the 

 others somewhat strongly punctured, clearly defined ; the spiracles 

 almost two and a half times longer than wide. Post-petiole closely, 

 strongly punctured on the sides ; the centre raised, less closely 

 punctured ; it has the black obscured with red ; the second to 

 fourth segments are closely punctured ; the gastrocoeli oblique, 

 deep. Legs stout, thickly covered with white pubescence. Areolet 

 4-angled, the nervures uniting in front, the recurrent nervure 

 received in the middle ; disco-cubital nervure broken by a stump ; 

 the transverse basal nervure interstitial. There is a distinct area 

 on the lower part of the metapleurae ; the upper keel is rounded. 



-•'■ Platylabus maculiscutis, sp. nov. 



Black ; the abdomen and legs red ; the coxae, trochanters, and 

 narrowed basal part of first abdominal segment, black ; the inner 

 eye orbits and a narrow line on the centre of the outer and 

 tubercles, yellow ; apex of clypeus rufous ; the labrum rufo- 

 testaceous ; mandibles dark rufous ; palpi testaceous ; the middle of 

 scutellum red, the apex yellow ; post-scutellum red at the base, 

 yellow at the apex. Wings hyaline, the stigma testaceous, black in 

 front, the nervures testaceous. Tegulae rufo-testaceous. S • 



Length 11 mm. 



Transvaal. 



