HYMENOPTERA FROM SARAWAK. hae 87! 
fuscous hair, each originating from a pit; the clypeus behind is 
bordered by a rounded narrow keel. Mandibles paler coloured 
than the head ; their teeth black. Abdomen shining, impunctate ; 
the suturiform aticulation has 7 or 8 stout, longitudinal, clearly 
separated longitudinal keels in the middle; the petiole is distinctly 
longer than the 2nd segment and appears narrower than usual; | 
it is depressed at the base; from the base a keel runs to near the 
apex. The keel on the second segment is smooth and shining ; 
the oblique and lateral furrows on the 2nd and 3rd segments 
are smooth ; there are no transverse furrows on the 3rd and fol- 
lowing segments. 
[pihaulax leptopterus, sp. Nov. 
Luteous; antennee dark brownish, paler towards the apex ; 
the scape black above; the wines long, yellowish, a dark cloud 
at the base of the stigma along the cubitus and extending shortly 
beyond the middle of the 1st cubital cellule; the lower part of 
the apex of the front and the entire apex of the hinder wings 
smoky; the transverse furrows on the base of the 2nd, 3rd and 
4th segments crenulated. Legs thickly covered. with longish 
pale fulvous hair. Q. 
Length 17 mm., terebra 7 mm. 
Hab. Matang, 3600 feet. 
Face irregularly punctured and covered with long fuscous 
hair; the middle above indistinctly keeled. The top of the cly- 
peus is transverse in the middle, the sides rounded. Frontal 
furrow deep. The apical lobe of the pronotum is widely and 
deeply depressed, the depression is rounded above, transverse 
at the base laterally at the base, there is a crenulated band. The 
1st abdominal segment is longer than the 2nd being in length twice 
the width of its apex; its centre is stoutly keeled; the keel being 
larger at the base; the sides of the segment, on either side of it, 
are irregularly punctured andstriated. The lateral depression on 
the 2nd segment is wide, deep and is irregularly striated at the 
base. The suturiform articulation is wide, deep and is stoutly 
longitudinally striated; the apical lateral furrow is smooth. The 
transverse furrows on the 3rd and 4th segments are distinct, 
narrow and longitudinally striated. There are no apical 
transverse furrows. 
“RR. A. Soc., No. 39, 1903. 
