216 Annals Entomological Society of America [Vol. V, 
One female from Rio Madeira, Brazil (Madeira-Mamoré 
R. R. Co., Camp 39), collected by Mann and Baker. 
This is a very remarkable species on account of the long 
ovipositor, although several others are known in which this 
organ attains a similarly great length. 
Iphiaulax Forster. 
Of this genus, so richly represented in the neotropical fauna, 
a considerable number of species were obtained, at least five of 
which are undoubtedly undescribed. These may be separated 
as follows: 
lies (Wings. dark at apex: ci seit, liter cater tetas creas rie ene ere Dae er eae 2 
Wings with dark cross-band, but the anterior ones white at apex./. reduvioides 
2.) Wings with distinct dark cross band beloreapex. ois eee eee 4 
Wings without distinct dark cross-band before the dark apical portion; legs 
ins part pales, access eae ees adele ie ee fede Mee ore On ee eens ere 3 
3. Face with a median furrow or depression, abdomen rather narrow; length 
1 ARS ocd 6 ee eR eR Sia Aeon PE eM ewan Bones Ib Be eats FG to I. fortis 
Face not excavated medially; abdomen rather broad, length 7.5 mm..J/. starkst 
4. Legs entirely black abdomen broad; ovipositor shorter than abdomen..... 
I. carapune 
Legs in great part pale; abdomen slender; ovipositor longer than the body. 
I. abunensts 
Iphiaulax reduvioides sp. nov. 
Female. Length 11 mm.; ovipositor 5 mm. Black, with the first 
abdominal segment except the apical portion of the central elevation, 
the sides of the second and third, extending inwardly somewhat along 
sutures, and the extreme lateral edge of the fourth, rufous. Tips of 
maxillary palpi yellow. Wings pale brown at the base nearly to the 
basal vein, then with a black band which includes over half of the second 
cubital cell, and apically white. Basal third of stigma bright fulvous, the 
color extending somewhat into the upper part of the first cubital cell; 
third discoidal cell with a hyaline spot basally above, hind wing black on 
apical half, basally pale brown. Venter fulvous on second, third and 
fourth segments, black beyond. Antenne as long as the body and 
ovipositor together, head one half broader than thick, obliquely nar- 
rowed behind the eyes; ocelli surrounded by a grooved line; face finely 
rugulose punctate, slightly convex, with a faint, fine median carina, and 
an indistinct grooved line on each side near the eye-margin; front 
and vertex shining, impunctate, the former extending between the 
antennal tubercles as a polished median groove, malar space very short. 
Mesonotum highly polished, the parapsidal furrows smooth, but slightly 
convergent and obsolete behind. Scutellum smooth, with a line of 
large confluent punctures at the base. Metathorax without carine, 
smooth medially, punctulate laterally. Abdomen broadly oval, much 
wider than the thorax, the first segment quadrate, not narrowed basally, 
the swollen pleural portions visible from above on each side, as wide as 
the segment and blackish-yellow in color; median elevation narrowed 
