208 Transactions of the South African Philosophical Society. 



both the transverse cubital nervures are bullated on the lower side 

 next to the cubitus. 



The petiole is broader than usual and has distinct tracheal 

 grooves ; the second cubital cellule is more narrowed in front 

 than it is in most of the species. 



CHALCIDID^. 



Gen. DIRKHINUS, Dalm. 



DlRRHINUS RUFICORNIS, Sp. 110V. 



Black, the antennae and four front legs rufous ; the hind tarsi pale 

 testaceous; wings hyaline, suffused with fulvous in the middle. $ . 



Length 3 mm. 



Cape Colony. Stellenbosch ; Grahamstown. 



Head and thorax covered with silvery pubescence. Frontal 

 process longer than the eyes, gradually narrowed into a sharp 

 point ; the lower side longer than the upper and with a distinct 

 margin, grooved above ; the upper part flat, round, slightly nar- 

 rowed towards the apex ; flat, with the sides raised into a stout 

 border or keel ; the head is strongly and closely punctured, the 

 punctures running into reticulations on the process. Clypeus pro- 

 jecting, smooth, bare, shining ; its sides stoutly keeled. Pro- and 

 meso-thorax strongly punctured, the scutellum roundly bordered 

 behind ; the metapleurae closely reticulated. Metanotum with stout 

 keels forming areae ; in the centre are two keels which, on the basal 

 half, curve roundly outwardly ; the apical half at the top projects 

 obliquely outwards, the rest being only slightly oblique ; inside, at 

 the end of the narrowed basal part, is a narrower keel, which curves 

 roundly backwards ; the apex is raised and behind is a rounded 

 keel ; at the base in the centre is a stout keel, narrowed towards the 

 apex and reaching near to the apex of the narrow T ed basal part 

 of the area ; on the sides is a long area ; its outer keel is straight, 

 oblique, the inner curves roundly to the outer keel, with the apex 

 oblique, straight. The abdominal petiole is as broad as long ; in the 

 centre are two stout keels ; bordered by three narrower ones ; the 

 base of the second segment is finely, closely striated. Apex of 

 abdomen trilobate, the middle lobe broader and more rounded than the 

 lateral, which becomes gradually narrowed to a bluntly rounded point. 



The sides of the metanotum project into a blunt, oblique tooth, 

 this projecting part being hollowed and striated in the centre. 



