2322 EMBRIK STRAND, 
of the two basal abdominal segments near the base, and a trans- 
verse band shallowly bisinuate posteriorly near the middle at the 
base of segments 3—5 yellow; a small yellow spot at the apex of 
the anterior and intermediate femora and of the posterior coxae; 
the base of the mandibles, the apical half of the pygidium and the 
apex of the joints of the tarsi fusco-ferruginous; the spines of the 
tibiae and tarsi whitish. Wings pale flavohyaline, the apical half 
of the costa broadly fuscous; nervures testaceous. 
Length 12 mm. 
Hab. Asuncion, Paraguay (Anısırs). 1 specimen. April. 
This may prove to be a small geographical race of P. paranensis 
Burm. with which the sculpture of the head and thorax agrees 
fairly well. 
Plesia fiebrigi n. sp. 
2. Head strongly and closely punctured, more sparsely on the 
vertex than on the front; thorax very closely punctured, propleurae 
and sides of the median segment finely obliquely striated, mesopleurae 
closely and coarsely punctured. Median segment opaque, very minutely 
punctured, the margins not sharply defined, the surface of the 
posterior truncation finely aciculate. Abdomen shining, finely and 
sparsely punctured, the apical segment longitudinally striated. The 
first abscissa of the radius is longer than the second which is about 
equal to the third; the second recurrent nervure is received close 
to the middle of the third cubital cell. 
Black; the anterior margin of the clypeus interrupted in the 
middle, a broad band between the antennae, the margins of the eyes 
narrowly interrupted on the summit, the margins of the pronotum 
broadly interrupted on the anterior margin, a spot on the mesonotum, 
the base of the tegulae and a spot above them, a spot on the meso- 
pleurae below the anterior wing and another before the intermediate 
coxae, a spot on the scutellum, the postscutellum, a band on each 
lateral margin of the truncation of the median segment extending 
broadly onto the sides, a broad transverse band at the base of ab- 
dominal segments 1—5, emarginate posteriorly on the first segment 
and sometimes on the second also, a spot at the apex of the posterior 
coxae, the apex of the anterior and intermediate femora beneath and 
the anterior tibiae beneath yellow; the base of the mandibles and 
the apical joints of the tarsi fusco-ferruginous. Wings hyaline, 
without a dark costal band, nervures testaceous. 
