On the Hymenoptera of the Georgetown Musewm. dll 
insect densely covered with white pubescence. Parapsidal furrows distinct 
on the basal two-thirds of the mesouotum. Male. Length 12 mm. 
Occiput transverse, the temples wid., oblique'y narrowed ‘There are 2 
longish fovez iu the centre of the Ist abdominal segment, separated by a 
stout keel which projects beyond them. 
Iphiaulax rotundinervis, sp.n. 
Black, the basal 4 segments of the abdomen tinged with dark red; the 4 
anterior tibie and tarsi suffused with red, very densely covered with grey 
pubescence; the hind tibize and tarsidensely covered with stiff black pubes- 
cence ; wings hyaline, the base tinged with yellow ; the discoidal cellules, the 
greater part of the Ist cubital, the base of the radial cellule and the apex of 
the wings from shortly beyond the 2nd transverse cubital and the hinder pair 
from the base of the radius, fuscous; the3rdabscissa of the radius twice the 
length of the second; the recurrent nervure received close to the apex of 
the lst cubital cellule. Male. Length 13 m.m. 
Abdomen smooth, shining ; the 1st segment with wide smooth lateral furrows, 
the centre with obliquely sloped sides. The basal area on the 2nd segment longish, 
gradually narrowed to a point and it is bordered by wide furrows, not very deep, 
thelateral furrows are curved, not very wide, clearly defined, and reach to the 
ap calfourth. Suturiform articulation closely crenulated to near the outer edge ; 
the ‘ateral branch is smooth, roundly curved and is widely distant from the 
outer edge ; there is a smooth, narrow, not very distinct , furrow on the apices of 
the 3id and 4th segments. The transverse median nervure is not quite inter- 
stitial ; the basal abscissa of the cubitus is broadly roundly curved towards the 
stigma, which is fuscous on its hinder half. 
Lasiophorus fortispinus, sp.n. 
Rufo-testaceous, the thorax paler, more yellowish in tint than the abdomen, 
the antennz, head, palpi, apex of mandibles, the middle of the 4th abdominal 
segment broadly and the whole of the following black ; as are also all the coxe, 
the basal joint of the 4 anterior trochanters, the hind trochanters, the femora, 
apical half of the hind tibiz and the hind tarsi, black. Wings yellowish hyaline, 
a fuscous cloud filling the Ist cubital cellule the Ist discoidal except for a 
triangular space at the base, the narrowed end in front, behind extending to the 
apical third, an irregular cloud in the apex of the 2nd discoidal an irregular 
cloud outside the recurrent, becoming obliquely widened to the apex, beyond the 
anal neryure, it occupying the basal third of the anal nervure and being 
indented by a conical hyaline cloud at the junction of he recurrent with the 
cubitus ; the apex is clouded from shortly beyond the 2nd transverse cubital 
nervure, which is roundly curved outwardly in front and having a minute 
stump on the outerside there ; the recurrent nervure is interstitial ; the apical 
third of the hind wings fuscous. Female. Length 18 m.m. ; terebra 36 m.m. 
Smooth and shining ; the face, metanotum and base of metanotum thickly 
covered with long white pubescence, the rest of the body much more sparsely, 
and darkly pilose. The facial spine is about 4 times longer than wide, is 
