Hymenopterenfauna von Paraguay. 205 
Median segment closely and rather strongly punctured, broader at 
the base than long, rounded posteriorly. Abdomen elongate, taper- 
ing at the extremities, closely and rather finely punctured; the 
first segment flattened at the base, with a shallow, longitudinal 
suleus not reaching the middle; the seventh segment longitudinal 
rugose, narrowly truncate at the apex. Hypopygium narrow, pro- 
duced a little beyond the dorsal segment and very narrowly trun- 
cate at the apex. Claspers punctured, long and rather narrow, ab- 
ruptly narrowed at about one fifth from the apex, the apical fifth 
less than half as broad as the basal portion. 
Black; mandibles, except at the apex; celypeus, margins of the 
eyes broadly, interrupted on the summit and upper third of 
the outer margin, the lateral and posterior margins of the head 
narrowly interrupted on the vertex, the lobes of the interantennal 
prominence, the anterior margin of the pronotum, joined in the 
middle by an arched band which does not touch the posterior margin, 
a curved spot on the mesopleurae, a quadrate spot near the posterior 
margin of the mesonotum, a very large spot on each side of the 
seutellum with a spot at each of the anterior angles, the postsceu- 
tellum, a very broad oblique band on each side of the median seg- 
ment, a spot on each side of the first five dorsal segments of the 
abdomen, the intermediate and posterior coxae beneath, all the fe- 
mora beneath and more or less indistinet streaks on the tibiae 
yellow; the two apical abdominal segments and the extreme apices 
of the other segments dark ferruginous red; tibiae and tarsi fuscous. 
Wings fusco-hyaline with a darker cloud in the radial cell, nervures 
black, the stigma fusco-ferruginous. 
Length 19 mm. 
Q. Mandibles falcate, with a short fringe of fulvous hairs on 
the outer margin; maxillary palpi perfect, sixjointed. Clypeus 
short, very broadly emarginate. Head thick, subreetangular, slightly 
rounded at the posterior angles, more than half as broad again 
as long, finely and rather closely punctured, with a well marked 
longitudinal frontal suleus which is smooth and shining with a tuft 
of long pale fulvous hairs on each side of it. Pronotum rather sparse- 
ly punctured, twice as broad anteriorly as long, narrowed posteriorly, 
narrower than the head, the anterior margin trilobed, the lateral 
lobes very little defined, the middle lobe more prominent, rounded, 
with a smooth and shining depression behind it; scutellum and median 
segment sparsely punctured; the scutellum twice as broad as long; 
