314 Timehri. 
cubital nervure, behind as long as the Ist, the basal abscissa of the cubitus is _ 
roundly curved ; the lst transverse cubital nervure is bullated in front and 
behind, the 2nd with a bulla extending from near the base to the apex. Male. 
Length 8 m.m. 
Scutellum stoutly keeled laterally to the beginning of the apical slope, which 
is finely, closely striated. Post-scutellum stoutly keeled laterally and with a 
narrower keel down the middle ; the space between the keels depressed. Base 
of metanotum at the most aciculated ; on the apex are 2 keels on either side 
of the central, the inner longer and more distinct than the outer, the apical 
obscurely, irregularly striated. The basal 2 abdominal segments are closely 
regularly, longitudinally striated, the Ist more strongly than the 2nd, the base 
of the 3rd still more finely striated ; the keel on the Ist segment has a smooth 
dilatation at the base and apex ; that on the 2nd at the base. Tibie and tarsi 
densely covered with short stiff black pubescence. Mandibles dark rufous, 
the teeth black, palpi black. 
Rhogas fortipalpis, sp. n. 
Black, the thorax and basal 2 abdominal segments red ; the middle of the 
mandibles red, the basal 2 abdominal segments are closely strongly striated 
with a stout keel, narrowed at the apex down the middle; the suturiform 
articulation finely crenulated ; the keel on the metanotum is slightly thicker 
than the abdominal one. Wings fuscous, the stigma and nervures black, they 
have a slight violaceous tinge. Female. 
The 2nd joint of the maxillary palpi is dilated ; it is as long as the 3rd ; the 
last joint is fuscous and is one-half longer than the penultimate ; both the palpi 
are densely pilose. Both the abdominal keels are slightly, triangularly dilated 
at the base. Length 8 m.m. 
Rhogas forticarinatus, sp. n. 
Black, the thorax red, the basal 2 segments of the abdomen distinctly tinged 
with red ; the mandibles dark red, black at the apex ; the wings fuscous, the 
stigma and nervures black ; the 2nd cubital cellule of equal width, about twice 
longer along the longitudinal than along the transverse nervures, the 1st trans- 
verse cubital nervure bullated in front and behind, the 2nd almost entirely 
bullated ; the recurrent nervure received at two-thirds of its length from the 
transverse cubital. The keel on the metanotum is stout; there is a short 
curved keel on either side of its apex. The lst and 2nd abdominal segments 
are closely longitudinally striated, the 1st more strongly and uniformly than 
the 2nd, on which the striae beceme finer towards the apex ; the suturiform 
articulation is finelycrenulated. The 1st joint of the maxillary palpus is of 
equal thickness, twice longer than thick, the 2nd is much swollen, 3 times 
longer than wide, narrowed towards the apex, the 3rd half its thickness ; the 
other 2 distinctly thinner. Female. Length 7 m.m. 
Mesonotum trilobate, the middle lobe not reaching much beyond the middle, 
from its apex a keel runs to the scutellum ; the part on either side of the base 
of the keel is finely striated. Scutellar depression large, deep, a stout keel 
