114 HYMENOPTERA FROM SARAWAK, 
Antenne longer than the body, entirely black, the scape 
somewhat more than twice longer than broad, not dilated; the 
3rd and 4th joints equal in length. Clypeus rounded on the top, 
narrow. Front not much depressed, furrowed in the centre. 
The 3 lobes of the mesonotum are largely fuscous. The raised 
central part of the petiole is not much longer than broad; is 
rugosely punctured on the top, its lateral slopes smooth, brown- 
ish and bearing 3 keels in the centre; the lateral furrows are 
wide and deep; the sides above are furrowed and striated. 
The 2nd segment on either side of the keel is widely reticulated ; 
the sides at the base are depressed and bear curved stout striz. 
The suturiform articulation is wide and striated ; the furrow on 
the base of the 3rd is smooth; on the 4th closely crenulated ; 
the apical 2 segments are smooth. | 
Iphiaulax annulitarsis, Sp. nov. 
Luteous, the head more yellowish in tint, the 3rd and 
following segments black, their apices pale yellow : the apex of 
the hinder tibie and of the joints of the hinder tarsi, black; the 
wings fuscous from the transverse basal nervure, behind it 
yellow; the basal half of the hinder wings yellow; the stigma 
black, with a small yellow spot on the base; the antenne ~ 
black. 9. | 
Length 11-12; terebra 9 mm. 
Hab. Kuching. 
Scape of antenne about 4 times longer thau broad : the 3rd 
joint slightly, but distinctly, longer thin the 4th. Face and cly- 
peus rugose; the face broadly raised in the centre and with a 
depression near the apex, where it hasan oblique slope; the ~ 
top cf the clypeus is transverse, its sides rounded. Centre of 
petiole coarsely, longitudinally punctured; the sides on the 
inner side at the apex, transversely striated. The 2nd segment 
is closely rugosely punctured; in the centre longitudinally 
striated; in length the plate is about twice the length of the 
width at the base ; it becomes gradually narrowed, and a narrow 
keel runs from it to beyond the middie of the segment; the 
part bordering the sides of the plate is depressed and is stoutly ~ 
transversely striated, The suturiform articulation and the fur- 
Jour. Straits Brane ~ 
