HYMENOPTERA FROM SARAWAK. 53 



middle segments of the abdomen slightly project at the apex ; 

 they are closely punctured ; the last segment is as long as the 

 penultimate. The main characteristics of this genus are the flat 

 face, continuous with the cly[ eus, the indistinctness of the keels 

 on the median segment; the short legs and the large, roundly 

 convex, sharply keeled scutellum. 



y Bodargus rufits, sp. nov. 



Ferruginea, apice femorum posticorum, basi tibiarum, apice 

 late apiceque tarsorum posticorum nigris £ . 



Long : 15 mm. 



Hab. Sarawak, Borneo (Shelford). 



Antennas dark rufous, darker towards the apex ; the scape 

 is yellow. Head uniformly coloured; the face and base of 

 clypeus closely punctured ; the vertex is more closely and 

 strongly punctured ; the ocellar region black. Mesonotum 

 closely and distinctly punctured ; the scutellum is more strongly 

 and not quite so closely punctured, except on the basal slope. 

 The median segment is rugosely punctured, except on the basal 

 slope ; on the apex it is transversely striated. Legs coloured 

 like the body ; the apical fourth of the hinder femora, the base 

 of the tibiae narrowly and their apex broadly, the apex of the 

 metatarsus, the- apical half of the second joint and the whole of 

 the others, black. Wings hyaline, the stigma and nervures 

 fuscous-black. Abdomen coloured like the thorax ; the fifth, sixth 

 and base of seventh blue-black ; the apical half of seventh white. 



Diapetus, gen. nov. 



Median segment smooth and shining; its base broadly 

 depressed in the middle ; there are two stout, transverse keels. 

 Prothorax with a stout, oblique keel above the middle ; its base 

 sharply keeled. Areolet minute, not clearly defined through the 

 cubital and radial nervures uniting ; the apical abscissae of the 

 radius and the cubitus spread out obliquely from it. Parapsidal 

 furrows deep, uniting at the apex into one short, wide furrow. 

 Metathoracic spiracles large, linear. Petiole curved, not much 

 narrowed at the base ; the spiracles are placed close to the 

 middle, nearer the apex than to the base. 



