1912} Brazilian Ichneumonide and Braconide 197 
to the lateral ones. Scutellum nearly flat, punctulate. Metathorax 
evenly rounded above, finely closely punctate anteriorly, microscopic- 
ally transversely rugose-aciculate behind, near the basal third with an 
evenly arcuate transverse carina; no trace of lateral projections or 
teeth; spiracles small, circular, behind them a very fine longitudinally 
impressed line to the base of the coxa. Pro-and mesopleure punctulate, 
a large smooth space below the insertion of the wings. Abdominal 
petiole shining, smooth, nearly straight below, bent above at the middle, 
with a longitudinal impression on each side, but without distinct carine; 
apex twice as broad as the base; spiracles barely behind the middle, 
second segment very finely, almost confluently punctate, following 
segments becoming smoother till at the tip the surface 1s not sculptured. 
Legs long and slender, the fore tibize swollen and greatly constricted at 
the base; fourth tarsal joint on all the legs very short and deeply divided 
for the insertion of the fifth. Wings with the stigma very narrow, 
radial cell narrow, as long as the cubito-discoidal; areolet small, scarcely 
narrowed above and with the second transverse cubitus less distinctly 
colored than its other sides; cubito-discoidal vein not broken; recurrent 
nervure received at the middle of the areolet; discoidal vein broken a 
short way above the middle; submedian cell shorter than the median; 
transverse median vein in hind wing broken well above the middle. 
Independencia, Parahyba, Brazil. (Mann and Heath). 
This is a very pretty species of intricate color pattern which 
resembles Callicryptus in the form of the tarsi, although it is 
otherwise very different. The areolet is unusually small, and 
recalls that of the Mesostenini. The color is also similar to 
certain Mesostenines, but I am quite positive that it is cor- 
rectly located here. 
Mesostenoideus (?) crassus sp. nov. 
Female. Length 12 mm. Ovipositor one-half longer than the 
petiole of the abdomen. A stout species, with the general habitus of a 
Cryptus. Black, with joints 8-15 of the antennze white above; a white 
median spot behind on the fifth to seventh segments of the abdomen, 
smallest on the fifth and largest on the seventh; legs, including coxe 
bright ferruginous, the hind pair black beyond the trochanters, the 
middle pair beyond the knees, and the fore pair on the last tarsal joint; 
basal abdominal segments margined behind with rufous, especially 
below; wings hyaline, faintly infuscated; palpi fuscous at tips. Head 
broader than the thorax, nearly three times as broad as thick, arcuately 
excavated behind; subopaque. Front impressed and shining above 
the antennez, with a fine median carina from the ocelli to the antenne; 
cheeks and lower part of head behind the eyes smooth and shining. 
Mesonotum with distinct, sharp, but not broad parapsidal furrows 
which are strongly convergent behind; middle lobe scarcely elevated 
above the lateral ones. Scutellum slightly convex, margined at the 
sides of the base which is crossed by a broad, deep, longitudinally 
t 
