98 HYMENOPTERA OF SARAWAK. 



Front and vertex coarsely rugosely punctured, almost 

 reticulated ; frontal depression transversely striated ; face and 

 clypeus covered with large, round, clearly separated punctures ; 

 above the centre of the clypeus is a deep depression or pit. 

 Occiput obliquely depressed, its centre smooth ; the sides punc- 

 tured above, below irregularly striated. Pronotum closely 

 irregularly punctured ; the meso- more closely punctured, its 

 centre at the base irregularly, transversely striated ; scutel- 

 lum coarsely, irregularly reticulated; its apex projecting, 

 rounded, with a slight, wide incision in the centre ; it is de- 

 pressed, with some slight keels at the base. Metanotum 

 coarsely, irregularly reticulated; the basal reticulations 

 irregular and broken; the basal tooth, large rounded 

 and narrowed at the apex, its length as long as the width 

 at the base. Propleurse irregularly punctured with a smooth 

 space in the centre above; the meso- and metapleune with large, 

 deep punctures ; the oblique central depression on the former 

 smooth at top and bottom, striated in the centre. The 4 front 

 knees are testaceous, the basal 3 short teeth on the hind femora 

 are widely separated; the 4th tooth is long and becomes gradu- 

 ally, obliquely depressed to the 5th which is shorter and sharp- 

 er and has a short tubercle at its apex. 



Evaniid^:. 

 Pristaulacus crythrocephalus, sp. nov. 



Black, the scape of the antennae, head, pro- and mesothorax, 

 red; the fore legs of a paler red colour. Wings fuscous- violace- 

 ous, paler at the apex, the stigma dark testaceous, black at 

 the base. 5 . 



Length 20 mm. terebra 20 mm. 



Hab. Kuching. 



Head smooth and shining, covered with a pale golden down, 

 which is longest on the clypeus. Apex of clypeus depressed in 

 the middle and with a stout keel on the lower edge; the sides 

 broadly rounded. Mandibles large, longer than the clypeus 

 from top to the bottom of the apex ; there are 3 large teeth ; 



Jour. Straits Branch 



