310 Timehrr. 
irregularly transversely striated ; the keel on the 2nd longish triangular , smooth, 
the narrowed part continued to the base of the apical fourth ; the part on either 
side of it depressed and closely irregularly covered with large round foves ; 
there is a large oblique lateral furrow. Suturiform articulation curved, weakly 
crenulated, there is a narrower, smoother furrow on the base of the 4th ; there 
are no apical furrows. 
Iphiaulax medianus, sp.n. 
Ferruginous, the antenne, head, and apical half of mandibles black, palpi 
testaceous ; the tarsi infuscated, wings fuscous, the base to near the transverse 
basal and to the transverse median almost hyaline, the stigma ochraceous, paler 
behind, the parastigma black, the costa rufo-testaceous ; there is a narrow 
hyaline cloud along the stigma, the apical three-fourths of the Ist cubital 
cellule, except for a longish triangular cloud near the middle of the apex,a large 
one of almost equal width outside the recurrent nervure and a narrow one on 
either side of the 2nd transverse cubital nervure, hyaline, the recurrent neryure 
is almost interstitial. Abdomen smooth and shining, almost bare, the 
keel on the 2ndsegment is smooth, extends to the base of the apical 
fourth, becomes gradually narrowed and is bordered by a deep erenulated 
furrow; the lateral furrows are large, wide and deep. Suturiform 
articulation deep, weakly, closely crenulated behind; the basal lateral 
furrow shallower, more curved and smooth ; there is a distinet, finely 
crenulated furrow on the base of the 4th segment. Female. Length 9; 
terebra 7 mm. 
Face densely covered with long grey pubescence, the temples more 
sparsely so; the mesosternum, pleure and metanotum covered closely 
with white hair. Legs closely covered with short white pubescence. 
Mesonotum trilobate, the middle lobe not reaching to the scutellum, the 
part in front of the latter being flat, 
Iphiaulax villosus, sp.n. 
Dark ferruginous, the antenne, head, the apex of the mandibles broadly, 
the sides of the first abdominal segment and the base of the second broad- 
ly black, the palpi, except the basal joint cf the maxillary, pallid testaceous, 
the tarsi darker coloured than the rest of the legs; wings hyaline, to the 
transverse median and transverse basal nervures, fuscous beyond, except 
the base of the radial and the basal 2 cubital cellules which are almost 
hyaline, the parastigma black, the stigma pallid ochraceous ; the transverse 
median nervure vot quite interstitial, being received shortly beyond the 
transverse basal ; the recurrent nervure is received quite close tothe 1st 
transverse cubital ; the 3rd abscissa of the radius about one quarter longer 
than the 2nd. Abdomen smooh, shining ; the area on the base of 2nd 
segment longish triangular, smooth ; the keel reaches to the base of the basal 
fourth ; the lateral furrows large, wide, oblique, deep ; suturiform articula- 
tion closely crenulated, more strongly in the middle than on the sides, the 
furrow on the base of the 4th segment is strongly, closely crenulated, that 
on the 5th is distinctly, but much more weakly crenulated. The entire 
