4 HYMENOPTERA FROM BORNEO. 



outer edges ; there is a narrower crenulated furrow at the 

 base of the 3rd segment. The basal half of the wings has the 

 fuscous colour suffused with fulvous, the nervures there being 

 blackish ; the nervures on the apical half are paler, fuscous 

 in colour ; the basal half of the stigma testaceous, the apex 

 dark fuscous, legs somewhat densely pilose ; the sheaths of 

 the ovipositor more densely covered with stiff er black pu- 

 bescence. 



The wide triangular area on the 2nd abdominal segment 

 is rare with the Bornean species of Iphiaulax: It is found 

 with I. in ignis, Sm. 



Iphiaulax octofoveatus, sp. nov. 



Black ; the head, thorax and 4 anterior legs red ; the 

 median segment largely tinged with black ; the middle tarsi 

 blackish, wings fuscous, the nervures and stigma black ; the 

 apical half of the 1st, the 2nd entirely and the basal half 

 of the 3rd, 4th and 5th segments in the centre, coarsely 

 irregularly rugosely striated, the striae irregular, more or 

 less broken, the stride on the 2nd stronger and more dis- 

 tinctly separated ; the area broad, triangular, as long as it is 

 wide at the base ; a keel as long as itself runs from its apex 

 to near the middle. The head and mesonotum sparsely, the 

 metanotum and back of abdomen more densely covered with 

 black hair. Face rugosely punctured, the centre raised and 

 smoother. First abdominal segment of almost equal width, 

 3 times longer than it is wide at the base, slightly, but dis- 

 tinctly longer than the 2nd ; the segments are all longer 

 than wide ; the abdomen is 3 times longer than the thorax ; 

 slender ; the suturiform articulation crenulated, not bifurcated 

 at the apex ; there are oval foveas on the sides of the 3rd to 6th 

 segments. The hind coxae are longer than usual, almost as 

 long as the 1st abdominal segment and of almost equal width. 

 Temples roundly narrowed, as long as the top of the eyes ; 

 the occiput rounded inwardly. 



Length 12 mm. 



Kuching. July. 



A distinct species. 



Jour Straits Branch 



