SCHROTTKY ] SOUTH AMERICAN HYMENOPTERA oA gi 
12. PROSOPIS CULICIFORMIS new species 
Male——tLength, 5 mm.; adbomen, 44 mm. wide; wing, 34 mm.; 
antenne, 2mm.long. Black; the mandibles, the labrum, the clypeus, 
the face on each side of it, the inner orbits of the eyes reaching 
nearly to summit, the two basal joints of the antenne beneath, the 
tubercles of the thorax, the anterior tibiz in front, the intermediate 
and posterior tibiz at base and apex, are yellow; the rest of the 
antennz ferrugineous beneath, darker above; the tarsi are fulvous; 
while the tegule are pale brown. Wings hyaline and splendidly 
iridescent, their nervures fuscous. The apex of the abdomen is 
‘ferrugineous. 
Head and mesonotum covered densely with fine punctures, the 
pleurze with very fine whitish hairs and interspersed fine punctures, 
those on the scutellum scattered; the metathorax is truncate, its 
basal area limited on each side by an oblique furrow, opaque, uni- 
formly punctured; the abdomen impunctured, the second segment 
without transverse depression; the first recurrent nervure is inter- 
stitial, the second nearly so. 
Taken at Villa Encarnacion, January 10 and 19, 1905. 
13. PROSOPIS TRISTIS new species 
Male—Length, 5 mm.; abdomen, 1%, mm. wide; wing, 334 mm.; 
antenne, 2mm.long. Black; the mandibles, the labrum, the clypeus, 
a rectangular spot above it, the face on each side of the clypeus, the 
inner orbits of the eyes, the two basal joints of the antenne, the 
tubercles of the thorax, the anterior femora at apex, the anterior 
tibize total, the intermediate and posterior tibiz at base, are yellow; 
the rest of the antennz ferrugineous beneath but a little darker above ; 
the tarsi fulvous, the tegulaz brown. Wings hyaline, faintly darkened 
towards apex, the nervures brown. The apical margins of the 
abdominal segments are fuscous. ; 
Head densely covered with fine, mesonotum with strong, punctures ; 
the punctures on the scutellum are more scattered, on the pleurz 
fine and scattered; the metathorax is truncate, the basal area rough 
with a few longitudinal plice ; the first abdominal segment is polished, . 
but covered with very fine, almost inconspicuous, scattered punctures, 
the rest of abdomen being’ a little more opaque. Both recurrent 
nervures are interstitial. 
Taken at Villa Encarnacion, December 22, 1904. 
