HYMENOPTERA FROM SARAWAK. 163 
hinder femora, the base of the hinder tibie narrowly, their apex 
more broadly and the hinder tarsi black. The area on the 
metanotum smooth, with a deep crenulated furrow in the centre. 
Wings hyaline, the radial cellule and the apex of the 4th cubital 
cellule smoky; the stigma dark fuscous. 6. 
Length 8 mm. 
Hab. Kuching. 
Flagellum of antenn below and the apical joint also above 
brownish-red; the pedicle entirely black. Front and vertex 
closely and strongly punctured ; the face and clypeus less close- 
Jy and covered with white pubescence; the yellow on the face 
is obliquely, sharply narrowed above; laterally it extends along 
the eyes to the base of the antenne. Thorax strongly and 
closely punctured, except the metanotal area which is smooth 
and shining except at the apex; its central furraw does not 
commence at the base which is obliquely depressed. Abdomen 
strongiy punctured; the pygidium is only slightly narrowed at 
the base and apex: its basal half strongly punctured, its apex 
transverse ; the apex of the hypopygium is roundly incised. 
* Pison Sarawakznsis, sp. nov. 
Black; densely covered with silvery pubescence; the apex 
of the median seement with a rather steep slope, its base close- 
ly and finely obliquely striated, the striz springing from the 
central furrow, which is shallow, the wings hyaline, the ner- 
vures blackish, the tegule and calcaria testaceous. 
Antenne black, thickly covered with silvery pubescence. 
Front and vertex alutaceous; the rest of the head thickly 
covered with silvery pubescence. Mandibles for the greater 
part rufous; the palpi brownish. The thorax is thickly covered 
with silvery pubescence, closely, minutely punctured: on the 
centre of the mesonotum are two shining, longitudinal lines. 
The furrow on the metanotum is wide and shallow ; in its cen- 
tre is a thin irregular keel: the base of the sezment is obscurely 
obliquely striated ; the apical furrow is wide. Abdominal seg- 
ments banded with silvery pubescence ; closely, microscopically 
* Pison is treated by Bingham as a neuter word. It is, however, 
a masculine word—the name in fact of som2 Biblical or Classical 
personage, I forget which. 
R. A. Soc. No. 39, 1903. 
