88 
Psyche 
[Sept.-Dee. 
on either side in the middle running from scutellum to the an- 
terior margin and interrupted at the suture. The posterior sec- 
tion is slightly curved, its lateral sides concave. The mesonotal 
pile is short and black, the pleural pile white, the scutellum 
blue-black, faintly shining, its pile chiefly black. The squamae 
are white with broad black margin and white fringe. Abdomen : 
black, the second and fourth segment has narrow yellow post 
margins; the second segment has a basal, posteromedially 
produced, opaque black fascia which does not reach the sides. 
It almost touches a rather wide, posterior black fascia which 
narrowly reaches the posterior corners. The third segment has 
a similar, narrower, less produced basal fascia and a shorter 
but equally wide posterior fascia. Fourth segment similar, each 
fascia still more reduced. Between these black opaque fascia 
the abdomen is shining metallic greenish-black. Legs: shining 
black, slightly greenish on the hind femora which are consid- 
erably thickened in the middle. The extreme base of the tibiae 
is dark brown; the first two joints of the middle tarsi are dark 
brown, the remainder of tarsi black. Hind tibiae ending trans- 
versely; hind trochanters without special hair. Wings: hyaline 
and bare. 
Holotype: a female. Villarica, Paraguay (F. Schade); para- 
types: two females, same data, one in author’s collection. 
Eristalis dorothea n. sp. 
Related to scutellaris Fabricius, this species is characterized 
by the thick, soft, golden pile of the scutellum and parts of the 
mesonotum; half of the scutellum yellow; mesonotum with 
peculiar pattern. 
Female. Length 12 mm. Head : the eyes are short brown 
pilose, the face, cheeks and front are black and moderately 
shining, the sides of the narrow produced face are thickly yel- 
lowish pubescent and yellowish pilose. The front is widely 
shining on the lower half and narrowly yellowish pubescent on 
the eye margins with an opaque black fascia on the upper half 
which is a little expanded along the eye margin; viewed 
obliquely there is a short, linear, yellowish pollinose vittae on 
the upper part of the front below the opaque black. There is a 
rounded protuberance in the middle above the antennae. An- 
tennae brown, the third joint blackish, the arista pale brown. 
Thorax: the mesonotum is moderately shining bluish-black 
