HYMENOPTERA FROM SARAWAK, 167 
the centre of the vertex behind. There are two longish subapical 
closely united, not very distinct, subapical teeth on the -man- 
dibles; there is a distinct raised transverse keel on the base of 
the petiole ; near it on the sides is a tubercle. 
Odynerus rugifrons, sp. NOV. 
Black ; the clypeus, mandibles except at the apex, a line on 
the front broadly dilated below and not reaching to the ocelli, 
the inner eye orbits, broadly below, narrowly above the sinus, 
the outer orbits, the prothorax broadly in front, two narrow 
lines on the mesonotum, two large marks on the scutellum, post- 
scutellum, the greater part of the mesopleure, the median seg- 
ment, except for a black band down the centre, the apices of the 
abdominal segments narrowly and two large, somewhat pyri- 
form, marks—the narrow end at the base—near the baseof the 
2nd segment, yellow. Legs similarly coloured; a line on the 
apical half of the middle femora, a shorter one on the base of the 
middle tibiz, the hinder femora and tibie broadly above and the 
base of the hinder tarsi black. Wings hyaline, the apical three- 
fourths of the radial cellule and the cubital cellules in front be- 
low it and the apex of both wings more faintly all round, 
smoky. ©. 
Length 12 to 13 mm. 
Hab. Kuching. 
Front and vertex closely and strongly punctured, the front 
much more strongly than the vertex, which is almost smooth in 
the middle; the punctures on the front run into reticulations 
above. Clypeus sparsely punctured; it has an. oblique slope 
from the middle towards the base and apex ; the apex has a wide, 
round incision; the apical angeles stout. Thorax above coarsely, 
strongly rugosely punctured. The postscutellum is separated 
from the post-scutellum by a moderately, almost smooth, fur- 
row and is not clearly separated from the metanotum, which has 
a rather steep, oblique slope. ‘The 2nd cubital cellule is narrow- 
ed above; the 1st transverse cubital nervure is oblique and 
roundly curved downwards; the 2nd is broadly roundly 
curved outwardly; the 2nd recurrent nervure is almost intersti- 
tial. Abdomen shining, the 2nd segment large, longer than its 
width at the apex and more than twice its width at the base. 
R. A. Soc,, No. 39, 1903. 
