Hymenopterenfauna von Paraguay. 221 
Hab. Asuncion (Anısrrs); San Bernardino, Paraguay (FiEBrıG), 
3 specimens. 
The yellow abdominal bands are at the apex of the segments, 
not at the base as in most of the South American species of the 
genus. One specimen has a yellow spot on the middle of the pro- 
notum and a yellow lateral line on the truncation of the median 
segment. 
Nearest to P. maculatissima Burm. of which it may perhaps 
prove to be a geographical race; but the position of the second 
recurrent nervure is rather different. 
A single male from Asuncion (Anısırs) is very near the de- 
seription of maculatissima and almost certainly belongs to the present 
form. It differs from BurMEISTEr’s description in the presence of 
a small yellow spot on the vertex, in the small size of the two 
yellow spots on the apical abdominal segment and in the faint 
yellowish tinge on the wings. 
Plesia paragquayensis n. sp. 
2. Clypeus closely punctured, broadly rounded anteriorly, convex. 
Front very closely and coarsely, vertex a little less closely punctured. 
Pubescence on the head and thorax pale fulvous and rather short, 
grey beneath. Thorax punctured rugose, more finely on the meso- 
notum than on the pronotum, scutellum coarsely punctured, the 
punetures confluent longitudinally. Mesopleurae very coarsely 
punctured, propleurae finely obliquely striated, the sides of the 
median segment rather more strongly striated. Median segment 
very elosely and minutely punctured at the base, the extreme apex 
rugose, vertically truncate posteriorly, the surface of the truncation 
obliquely striated. Abdomen rather closely and very finely punctured, 
the apical segment longitudinally striated and rounded at the apex. 
The first abscissa of the radius is longer than the second, which is 
a little longer than the third; the first recurrent nervure is received 
just beyond the middle of the second eubital cell, the second before 
one third from the base of the third eubital cell. 
Black; a transverse spot on each side of the clypeus, two large 
spots between the antennae, the inner orbits of the eyes narrowly, 
a short line on the lateral margin of the head behind the eyes, the 
postscutellum, a spot on the tegulae, a small vertical spot on the 
mesopleurae below the anterior winges, a large spot on each side 
