HYMENOPTERA OF SAKAWAK. 107 



narrow, crenulated ; there is a curved crenulated furrow on the 

 base of the 4th and 5th segments, and distinct transverse ones 

 on the apices of the 3rd, 4th and 5th; the 6th is depressed at 

 the base and is finely closely, striated there. The 3rd segment 

 is suffused with rufous in the middle. The hind coxae are 

 longer than usual ; these are 3 times longer than wide. The 

 pubescence on the legs (especially the hinder) is long and 

 dense. 5 . 



Length 8 mm. 



Hab. Kuching. 



This species is distinguished by the oblique transverse 

 median nervure and by the praebrachial nervure being roundly 

 curved at the prsediscoidal cellule towards the cubitus. Other- 

 wise it is not unlike I ezerias Cam. 



Iphiaulax imaits, sp. nov. 



Black, the head, pro- and mesothorax and 4 anterior legs 

 red; the wings uniformly dark fuscous, the costa, nervures and 

 stigma black; the basal 5 segments of the abdomen closely, 

 uniformly longitudinally striated ; the plate on the 2nd seg- 

 ment smooth and shining, the basal part broader than long, its 

 apex obliquely narrowed ; the apical continuation extends be- 

 yond the middle of the segment and becomes gradually nar- 

 rowed to a sharp point ; the suturiform articulation is rufous in 

 the middle. 9 . 



Length 9 mm. ; terebra 7 mm. 



Kuching. December, 18th. 



Head smooth, the face sparsely covered with long white 

 hair ; the head is cubital ; the temples nearly as long as the 

 upper part of the eyes ; they are straight, not narrowed, with 

 the hinder part rounded. Frontal furrow narrow, deep, ex- 

 tending from the ocelli to the antennae. Antennal scape with 

 a projection — broad at the base, narrowed towards the apex — on 

 the apex below and extending close to the apex of the 

 2nd joint. Apex of mesonotum depressed, flat in the mid- 

 dle ; its apex is bordered by a smooth, narrow transverse 

 keel ; behind which is a crenulated one. The base : -> of 



R A. Soc, No. 46, 1906. 



