272 SMITHSONIAN MISCELLANEOUS COLLECTIONS [voL. 48 
14. PROSOPIS XANTHOCEPHALA new species 
Male.—Length, 414 mm.; abdomen, 44 mm. wide; wing, 3% mm. ; 
antenne, 2mm.long. Black; the labrum, the mandibles, the clypeus, 
a pentagonal spot above it, the face on each side of the clypeus, the 
inner orbits of the eyes, the two basal joints of the antennz beneath, 
the tubercles of the thorax, from there an oblique line to the an- 
terior margin of the pronotum, a minute spot on the tegulz, the 
apical half of the anterior femora, the anterior tibiz and tarsi, the 
intermediate femora in front, the intermediate tibie, except a small 
fuscous spot behind, the posterior tibiz at their base and apex, and 
the intermediate and posterior tarsi, are yellow; the rest of the 
antenne ferrugineous beneath, fuscous above; the tegulz are brown- 
ish. Wings hyaline, the nervures brown. The apex of the abdomen 
is ferrugineous. 
Head densely covered with fine punctures, the mesonotum with 
fine and scattered punctures, the scutellum with only a few fine dis- 
persed punctures; the pleure are semiopaque; the metathorax is 
truncate, the basal area with a few low longitudinal plice; the 
abdomen semiopaque, the second segment without transverse de- 
pression. Both recurrent nervures are interstitial. 
~Taken at Villa Encarnacion, December 29, 1904. 
15. PROSOPIS LONGICORNIS new species 
Male.—Length, 4% mm.; abdomen, 34 mm. wide; wing 3% mm.; 
antenne, 2% mm. long. Black; the mandibles, the labrum, the 
clypeus, a pentagonal spot above it, the face on each side of the 
clypeus, the inner orbits of the eyes, the two basal joints of the 
antenne in front, the tubercles of the thorax, the apical half of the 
anterior femora, the anterior tibie and tarsi, the intermediate and 
posterior tibiz at their base, and the intermediate and posterior tarsi, 
are yellow; the rest of the antenne ferrugineous beneath, fuscous 
above. Wings hyaline, the tegulz brown, the nervures dark brown. 
Head and mesonotum densely covered with fine punctures, those 
on the scutellum and on the pleurz fine and scattered ; the metathorax 
is truncate, the basal area opaque, granular, in the middle with a few 
groove-like impressions; the abdomen semiopaque, the second seg- 
-ment with a shallow transverse depression near its base. The first 
recurrent nervure enters the first cubital cell before its apex, the 
second recurrent being interstitial. 
Taken at Villa Encarnacion, December 27, 1904. 
[Mr. Schrottky does not refer to the numerous South American 
