100 
Psyche 
[Sept.-Dee. 
lighter brown. Entire abdomen shining, its pile broadly and 
triangularly erect and white in the basal corners of the third 
and fourth segments and over all but the apex of the fifth seg- 
ment. The entire lateral margins of the second segment white 
pilose, medial pile black. Pile of first segment long and white 
and abundant, its apex and middle bare. Legs: the front and 
middle femora are reddish brown, the hind pair dark brown, 
its apex narrowly lighter, its pile almost wholly black. Front 
and middle tibiae and tarsi and all the hind tarsi except the 
basal three-fifths of its basi tarsi light reddish-yellow. Base 
of hind basitarsi, which is considerably thickened, black and 
black pilose. Hind tibiae blackish-brown except narrowly at 
the base and with rather long, thick blackish pile. Wings: quite 
hyaline with the costal, subcostal and stigmal cell and an 
elongate apical, marginal spot occupying the ends of the margi- 
nal and end of the submarginal to barely beyond the third 
longitudinal vein and also a central, somewhat triangular spot, 
from a short distance before the furcation of second and third 
vein, to just beyond the small cross vein, and extended pos- 
teriorly to fill out the basal part of the third posterior cell and 
to extend down to the middle of the posterior section of the 
fifth longitudinal vein. 
Holotype: a female. Bella Vista, Paraguay, February (Alto 
Parana) F. Schade collector. 
Baccha potentilla n. sp. 
Characterized by the shining black abdomen, widely smoky 
wings and the shape of the abdominal segment. Second abdomi- 
nal segment about two and a half times as long as wide. Re- 
lated to clarapex Wiedemann. 
Male. Length 10 mm. Head: the cheeks, middle of face 
and front shining steel-blue, the central portion of the front 
more blackish, the upper middle front opaque with on either 
side a pair of semicircular, silver pollinose, eye-marginal spots. 
Pile of front and upper part of face long and black. The frontal 
pile is largely confined to the eye margins. The lateral silver 
pubescence of the face continues in moderate width up the sides 
of the face to a little above the antennae. The post ocelli pile 
is black, confined to a single row of hairs. Occipital pile com- 
posed of one long posterior row and one shorter lateral row; its 
upper pile is yellow. The antennae are somewhat elongate, dark 
