6 HYMENOPTERA FROM BORNEO. 



the base ; there is a longish fovea, narrowed at the base, on 

 either sicte of the apex ; the 2nd segment is striated, finely 

 closely broadly to shortly beyond the middle ; the 3 central keels 

 on the suturiform articulation are continued beyond the furrow, 

 the lateral being much longer than the central, which does not 

 extend much beyond the furrow ; the sides near the apex are 

 broadly depressed ; there is a curved crenulated furrow at the 

 base of the 3rd segment. Wings fuscous violaceous, the nervures 

 and stigma black. 9 



Length 13 mm. ; terebra 30 mm. 



Kuching. September. 



Face rugosely punctured-reticulated ; the clypeus with a 

 curved, finely punctured depression in the middle above. 

 Temples as long as the top of the eyes, broadly rounded behind. 

 Metanotom thickly covered with blackish hair. The basal 3 

 ventral segments of the abdomen white except for an oblique 

 black spot on the 3rd. The 1st segment 3 times longer than 

 it is wide at the apex. 



N/ Iphiaulax Enrytlieeus, sp. now 



Black, the head, thorax, anterior legs, the middle coxae 

 trochanters and femora for the greater part red, the metanotum 

 large infuscated ; wings fuscous violaceous, the nervures and 

 stigma black ; the plate on 2nd abdominal segment longish 

 triangular, smooth at the base, finely closely striated at the 

 apex, the keel narrow, extending to the apex, where there is a 

 broad, smooth plate ; the basal 2 abdominal segment closely 

 longitudinally striated ; the basal half of the 3rd at the sides 

 more finely striated. 9 



Length 10 mm. ; terebra 11 mm. 



Kuching, December. Sadong, August. 



Face smooth, bare, shining in the middle, the sides weakly 

 punctured and haired; the clypeus bordered laterally by a 

 pyriform fovea, deepest and widest below. Temples as long as 

 the eyes, rounded behind. First abdominal segment twice long- 

 er than wide of equal width throughout ; stoutly, irregularly 



Jour, Straits Branch, 



