30 
Psyche 
[March- June 
I consider this genus to be amply well founded since it 
represents an extreme as far as the known species are con- 
cerned, in at least four or five particulars. Unrelated to 
Baccha to which it bears a superficial resemblance, but it 
is noteworthy in the enormous eyes, hidden humeri, nar- 
rowly reduced face, knife-like vertical triangle, the short- 
ened non-petiolate, abdomen, exceedingly elongate wing and 
lost alulae, to say nothing of the erect basal metanotal fringe. 
Pipunculosyrphus globiceps n. sp. 
A slender light yellowish fly, which is brown on the upper 
part of the third antennal joint, upper half of front, disc of 
thorax, hind femora except basally, and the abdomen, except 
for pairs of yellow spots which are bordered by black. 
Front with a small round black spot above antennae. Vertex 
black, paired spots of abdomen obliquely directed forward, 
their black posterior borders like confluent V-shaped marks. 
Last segment vitate. The middle stripe broad and black. 
Wings pale brownish. Stigma a little darker. 
Two males, San Bernardino, Paraguay (Fiebrig). Type 
in the Museum of Natural History, Vienna, paratype in the 
author’s collection. 
Oligorhina n. gen. 
Eyes bare, the vertex narrow, rapidly widening to the 
level of the antennae, where the face is parallel-sided and 
rather narrow. In profile the head slants down from the 
vertex quite straight to the low tubercle shortly below the 
antennae and is then still further produced to the epistoma, 
though not quite so sharply. Face, because of the narrow- 
ness, with a pinched out aspect. Antennae set very far apart, 
short. The third joint a little longer than wide. Arista as 
long as the antennae. Occiput not visible from the side be- 
low the middle of the eyes. Thorax as wide as head, quite 
convex, both from the front and from the side very sparsely 
pilose. Humeri bare, scutellum large, semicircular, some- 
what flattened, a few large bristles on the margin, a few 
downward projecting hairs, but scarcely any fringe. Abdo- 
men slender, spatulate, about five times as long as its greatest 
width, which begins on the fourth segment. Fourth and 
fifth segments with practically parallel sides. Second seg- 
