Hymenopterenfauna von Paraguay. 183 
one at each of the anterior angles, postscutellum, two broad oblique 
bands on the median segment diverging towards the apex, a rather 
broad transverse band close to the apex of dorsal segments 1—D5 
interrupted narrowly on segments 3—5 and sometimes also on the 
second, a spot on each side of ventral segments 2—5, the femora at 
the apex and beneath and a line on the anterior and intermediate 
tibiae above yellow. Tibiae and tarsi dull rufo-testaceous. Wings 
hyaline, the radial cell clouded with fuscous; nervures black, the 
stigma testaceous. 
Length 10—11 mm. 
9. Head seen from the front almost semicircular, very minutely 
punetured, with a few scattered larger punctures, the frontal sulcus 
very short and shallow. Pronotum much narrower than the head, 
twice as broad as long, the anterior angles produced laterally and 
subtuberculate, slightly narrowed posteriorly, the posterior half 
shallowly depressed on each side, the depressions separated by a low 
longitudinal carina. Median segment flattened, shorter than the 
pronotum, broadened from the base and obliquely truncate posteriorly. 
Abdomen sparsely punctured, much broader than the thorax; the 
first segment truncate at the base, subtuberculate in the middle 
above the base of the truncation, the apical margin feebly raised, 
with a broad transverse groove before it. Second segment with two 
straight, thickened, transverse carinae, the apical margin also raised. 
Pygidium ovate, broadiy rounded at the apex. Fourth and fifth 
ventral segments deeply punctured. 
Castaneous brown, the head pale ferruginous brown, the fourth 
and fifth abdominal segments almost black. 
Length 7 mm. 
Hab. Asuncion (Anısırs), 6 2; San Bernardino, Paraguay 
(Fiegrıc), 13 19; Parana (BurMmEISER), 42 in cop. The male from 
Parana has a yellow spot on each side of the sixth dorsal segment. 
I have been unable to find any description of this species in 
BuURMEISTER’s publications, though a specimen in the Berlin Museum 
is marked as the type. I therefore treat it as a manuscript name. 
Sceotaena impressiceps N. Sp. 
3. Clypeus rather narrowly and shallowly emarginate, the 
angles of the emargination produced and forming short divergent 
teeth, a short and feebly porreet tooth at the middle of the emar- 
