HYMENOPTERA FROM BORNEO. 3 



and the sheaths of the ovipositor are broadly white at the apes, 

 the sheaths in insignis being entirely black. In ins ignis the 

 1st abdominal segment is more than twice longer that it is 

 wide at the apex. 



^ Iphiaulax cariniceps, sp. nov. 



Black, the head, thorax, except the centre of metanotum 

 broadly, the anterior legs, the middle, except the tarsi, and 

 the base of hind coxas, red ; wings fuscous violaceous, the 

 nervures and stigma in part testaceous ; the middle of face 

 depressed, with a stout keel down the middle, the 1st, 2nd, 

 the 3rd, except at the apex and the basal half of the 4th 

 abdominal segment strongly closely longitudinally striated ; 

 the area on 2nd segment triangular, slightly longer than it is 

 wide at the base ; closely longitudinally striated, reaching to 

 the middle of the segment. 9 



Length 14 mm.,^terebra 42 mm. 



Kuching. March. 



Face coarsely, rugosely not closely punctured, sparsely 

 covered with black hair ; the clypeus more closely and finely 

 punctured. Front broadly depressed, the depression deep, 

 clearly defined, twice the width of the lateral part, which is 

 closely, distinctly punctured and sparsely covered with black 

 hair ; the centre is bare, aciculated, shining. Antennal scape, 

 shining, bare, not much dilated at the apex, about 3 times 

 longer than thick. Malar space furrowed, the . depression 

 much widened below. Thorax smooth, parapsidal furrows 

 deep ; the metanotum thickly covered with black hair. The 

 1st abdominal segment is fully one third longer than wide, the 

 basal half with a rounded slope ; the central part of the 2nd 

 is bounded by a keel which converges towards the apex ; the 

 part bounding the area stoutly, obliquely striated, the part at 

 its apex is more finely and closely longitudinally striated ; 

 outside the keel is a depression, closely, strongly obliquely 

 striated, and with a large, almost smooth depression at its 

 apex ; the outer edge closely, ragosely longitudinally striated. 

 Suturiform articulation wide, deep, crenulated, widened at the 



R. A. Soc, No. 48, 1907. 



