106 HYMENOPTERA FROM SARAWAK., 
petiole has a keel in the centre: it is raised and rounded at the 
base and does not extend to the apex; the apical half, on either 
side of it, is irregularly reticulated; second segment stoutly 
irregularly reticulated : the depression is stoutly, closely oblique- 
ly striated; the raised outer apical part is closely rugose 
and with some striz. The 3rd and 4th segments are close, uni- 
formly longitudinally striated. Wings, except for a narrow 
oblique cloud at the base and one below the 1st cubital cellule, 
dark fuscous, with a slight violaceous tinge; the 2nd cubital 
cellule above is slightly longer, below a little shorter than. 
the 3rd. 
Iphiaulax patrous, sp. nov. 
Black: the scape of antenne, head, thorax and forelegs 
ferruginous, the middle femora piceous ; the wings fuscous; the 
2nd 38rd and 4th abdominal segments closely longitudinally 
striated ; the 2nd segment reticulated in the middle, the keel 
broad, extending to the apex; the dilated basal part broad at 
the base, becoming gradually narrowed to near the middle of 
the segment: its base smooth, the rest closely covered with 
twisted longitudinal strie. Sheath of ovipositor densely pilose, 
broad: the apical third white; it is twice the length of the 
body. 
Length 13. mm. 
Scape of antennee long, of equal width, longer than the 2nd 
and 38rd joints united; the 3rd joint shortly, but distinctly, long- 
- er than the 4th. Face closely and distinctly punctured, except in 
the middle, which is raised and smooth. Clypeus punctured 
below : it becomes obliquely narrowed towards the top which 
is transverse and is not dilated like the lower part. The ocellar 
region and the middle of the front depressed ; the vertex sparse- 
ly covered with long hair. The raised part of the petiole is 
smooth and depressed at the base and has a shallow furrow in 
the middle; the apex has a keel down the middle and bears some 
stout, mostly transverse, keels. ‘The lateral. depression on the. 
base of: the 2nd segment is large, irregularly striated in the - 
middle, narrowed at the base and with a large fovea at the base 
and on either side at the apex; the base uf the 3rd segment is 
smooth laterally at the base and depressed there especially at 
Jour. Straits Branch | 
