HYMENOPTERA FROM SARAWAK, nS 
Elphea flavomaculata, sp. nov. 
Black, smooth, and shining; the face, except for a narrow 
black line in its centre above, and a large black mark on its 
lower half below, a mark on the hinder edge of the pronotum, 
broadest behind the tegulee, a broad curved mark below them, 
a mark under the hind wings, the apices of the abdominal seg- 
ments and the greater part of the ventral surface, pallid yellow, 
~ as are also the 4 front legs, except for a black line on the tibie ; 
the hinder legs black, the base of their tibize testaceous. 
wings hyaline, with a fulvous tinge; the lower part of the apex 
of the anterior and the whole of the apex of the posterior 
smoky; the stigma dark fuscous in front, pale yellows behind ; 
the nervures fuscous. @. * 
- Length 14 mm.,.terebra 8 mm. 
Hab. Kuching. 
Antenne: black, short, longer than the body. Median seg - 
ment sparsely covered with long fuscous hair, its apex all round * 
and a large mark on the pleure are testaceous. Abdomen 
smooth and shining: the base and sides sparsely haired. 
Plesiobracon, gen. nov. 
Median segment with a keel down the centre. Temples 
sharply obliquely narrowed, the occiput transverse. Malar space 
large. Transverse median nervure interstitial ; the recurrent 
nervure widely distant from the transverse cubital Abdomen 
as in [phiaulax, with distinct transverse crenulated furrows ; the 
4th segment produced in the middle above. 
The cubitus originates from below the upper part of the 
transverse basal ; the stigma is large; the hypopygium is large, 
cultriform; the antenne are long ; the mandibles are broad at the 
base, curved and end in a sharply-pointed tooth. 
This genus is allied to /phiaulax by the form of the abdomen 
but is readily separated from it by the recurrent nervure not be- 
ing interstitial, by the stout keel on the metanotum and by the 
temples being sharply obliquely narrowed behind the eyes. 
Plesiobracon carinata, sp, nov. 
Black, the face, oral region, the inner, outer and the lower 
outer eye orbits narrow; the malar space and madibles rufo- 
R. A. Soe., No, 39, 1903. 
