HYMENOPTERA FROM SARAWAK. 65 



Long : 10 mm. 



Hab. Sarawak, Borneo (Shelford). 



Antenna? black ; the apex of the fifth, the sixth to eleventh 

 entirely, and the twelfth and thirteenth paitly, white. Head 

 black, the inner orbits in the middle narrowly white ; the face 

 rugosely punctured, the punctures running- into reticulation above. 

 Olypeus roundly convex, smooth and shining and sparsely 

 covered with loutish hair. Mandibles rufous before the middle, 

 smooth; the base coarsely aciculated. Front irregularly strio- 

 lated, coarsely in the centre, more finely in the middle. Pro- and 

 mesonotum with the scutellum smooth and shining; the apex of 

 the middle lobe irregularly longitudinally striated. Median 

 segment behind the keel smooth and shining ; the rest of it 

 strongly, transversely, closely striated; on the apex is a curved 

 white band, which is dilated backwards in the middle. Pleura? 

 closely longitudinally striated ; the stria? on the mesopleurte are 

 more irregular and more or less curved. The four front legs are 

 pale yellow ; their coxa? black, rufous towards the apex ; their 

 tarsi inf uscated ; the hinder tarsi are white, except narrowly at 

 the base. The basal two segments of the abdomen are acicula- 

 ted ; the others smooth and shining ; the second and third seg- 

 ments are narrowly pale at the apex ; the apical three are for 

 the greater part white. 



Buodias, gen. now 



Thorax three times longer than wide ; the median segment 

 behind the keel obliquely rugosely striated ; its sides with a 

 broad spine ; the apical keel is wanting. Front stoutly striated. 

 Petiole not much longer than the second segment, stout, 

 becoming gradually wider towards the apex from the base. 

 Areolet of moderate size, wider than long, wider at the apex 

 than at the base ; the recurrent nervure is received close to the 

 apex ; the transverse basal nervure is received behind the 

 transverse basal. The petiolar spiracles are nearer each other 

 than they are to the apex. Scutellum flat, keeled on the basal 

 half. Ptero-stigma elongate, narrow. The median segment is 

 about one half the length of the meso-thorax ; its apex has an 

 oblique, straight slope ; its spiracles are small, about three times 

 longer than broad. The abdomen is stout, not longer than the 



