268 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vor. 48 
of the scutellum, and the base of the tibiz, are yellow; the mandibles, 
the rest of the antenne and the rest of the legs, the first abdominal 
segment, except a large black patch on the dorsal face, are fer- 
rugineous; the sixth ventral plate and sometimes the fifth dorsal 
plate are also ferrugineous; the posterior parts of the tegule are 
fulvous. Wings hyaline, with brown nervures. 
Head and mesonotum densely covered with fine punctures, those 
on the scutellum more scattered ; the pleurz are covered with a few, 
shallow, almost imperceptible punctures ; the truncation of the meta- 
thorax is covered with very fine whitish hairs, the basal space sculp- 
tureless, impunctured, with only a short, shallow, transverse depres- 
sion near its base; the abdomen is smooth, impunctured, the apical 
margins of the segments pale brownish, from the second segment 
to the apex it is covered with inconspicuous yellowish hairs. Both 
recurrent nervures are interstitial. 
Taken at Villa Encarnacion, January 9 and II, 1905. 
[Distinguished from P. arsenica, Vachal, by the smooth im- 
punctured abdomen, the rather larger size, etc—T. D. A. C.] 
9. PROSOPIS ITAPUENSIS new species 
Female——Length, 4-5 mm.; abdomen, I mm. wide; wings 3% 
mm.; antenne, 114 mm. long. Black; the middle of the clypeus, the 
face on each side of it, the inner orbits of the eyes extending nearly 
to summit, the tubercles of the thorax, the anterior tibiz in front, 
and the base of the intermediate and posterior tibiz, are yellow; the 
mandibles are ferrugineous; the labrum is fuscous; the sides of the 
clypeus are black; the basal joint of the antennz is black, the rest 
of the antenne being ferrugineous in front, but fuscous above; the 
tarsi are ferruginous; the tegule are brown, with a minute yellow 
spot in front. Wings hyaline, the nervures nearly black. 
The head and mesonotum are densely covered with very fine 
punctures ; scutellum is long, about one and one-half times as long as 
wide, and covered with fine scattered punctures; pleurz opaque, the 
punctures rather finer than those on the head and more scattered ; the 
basal area of the metathorax is smooth, opaque with a shallow 
groove in the middle near the base which is parted longitudinally by 
a small low carina, the truncation is parted longitudinally by a low 
furrow which itself divides above in two branches forming thus a 
Y; the abdomen is smooth. The first recurrent nervure joins the 
cubitus a little before the first transverse cubitus, the second re- 
