348 Annals Entomological Society of America [Vol:.V; 
Abdomen: Tergum, segment one dark brown, indistinctly black 
medially; remaining segments reddish-brown, darker basally. Hypo- 
pygium swollen. Sternum brownish-yellow; 7th segment black both on 
the sternite and pleurite. Hypopygium: (see Fig. 0); 7th sternite, 
caudal margin almost straight; lateral margin impressed, wavy; 7th 
tergite, caudal margin straight; Sth sternite, (Ss), broad at the base, 
narrowed apically, running caudad slightly beyond the remaining 
appendages; the base is shiny, the tip short-cylindrical, dull, opaque; 
the tip bent strongly dorsad and deeply notched at its base; the 
dorsal surface of the eighth sternite is deeply concave, hollowed-out; at 
the notch, on the dorsal margin, is a small flattened lobe (c), directed 
upward, its caudal margin narrowly chitinized, the tip densely fringed 
with long pale hairs. 8th tergite very narrow (St.) represented only by 
a narrow strip, concave on its caudal margin and consequently even 
more reduced on the middle line. 9th sternite (9s) broad basally, the 
dorsal margin with a broad, obtuse notch; a blunt tooth on its caudal 
margin, ventrally the margin is rolled inward, forming a broad, obtuse 
notch on the margin; the inward-projecting arm 1s chitinized, its inner 
margin thinned and bearing a dense fringe of long pale hairs which 
overlap those of the opposite side and form a dense mat under the 
apical appendage and over the Sth sternite. 9th tergite (9t) moderate, 
medially with a deep notch on the caudal margin; the adjacent lobes 
being sharply pointed, bent ventrad at their tips, sub-chitinized and with 
hairs and minute denticulae along the inner face; the latero-caudal 
margin of this sclerite is thinner and bears a fringe of sub-equal, pale 
hairs. The apical appendage (a) is dorsal, flattened, bearing two teeth, 
the most dorsal and innermost project inward, very sharp, slender, 
chitinized, almost touching its fellow on the middle line; the ventral 
tooth (a) longer, directed more caudad; the outer margin of this 
appendage clothed with long hairs; below the apical appendage, a 
flattened median organ (b), its caudal margin vertical, evenly convex, 
narrowly chitinized, and fringed with fine hairs. Below the 9th tergite 
and between its arms, in the specimen at hand, the penis (p.) projects; 
it is extremely elongated and if straightened would be considerably 
longer than one-half of the abdomen. 
Q Like the & but the antenne short, the flagellar segments cylindri- 
cal, subequal, not swollen basally, basal half of each segment brown, apex 
yellow. Wing without a spur, but venation as in the o%. Ovipositor: 
(v, vi) Sth tergite, concave on the caudal margin; 9th tergite very nar- 
row and not as wide as the rest of the abdomen, its caudal margin con- 
cave. Base of the ovipositor short, almost as broad as long, the valves 
short, their tips chitinized and sub-spatulate, viewed from the side 
(v,), the valve is wider than its base narrowed near the tip, the tip again 
expanded; lower valve shorter than the upper, directed caudad and up- 
ward, the valves extremely high, blunt at the apex. The 9th sternite is 
very long. 
Holotype, o, Chapada, Matto Grosso, Brazil (H. H. 
Smith, coll.) 
