4 KANSAS UNIVERSITY QUARTERLY. 
Allotrichoma abdominale Williston, Dipt. St. Vincent, 398. 
This species was placed in the genus //ecamede, notwithstanding 
the imperfect description given by Loew of the genus, by reason of 
its similarity to the European H. /aterals Loew, as shown by the de- 
scription. Becker has since sepa rated this species as the type of 
his genus Al/otrichoma. This species agrees in nearly all respects with 
the figure and description given by Becker, and Iam still in doubt of 
the identity. As the additional species described by Beckershow a 
very close resemblance, it is very probable that the present is not 
the same as /aterale. The peculiar bristles on the hind tibia of the 
male are present in this species, but I do not observe the hypopygial 
appendages figured by Becker. I have since examined typical spec- 
imens of A. abdominale from Brazil. 
Ilythea flavipes Williston, Dipt. St. Vincent. 403. 
My doubts concerning the location of this species are dissipated 
by the figures and descriptions given by Becker of the type and on- 
ly other known species, I. spilota of Europe. The species is a true 
Tlythea, differing from spilota most especially in the short second 
longitudinal vein of the wing. This species I have also from Rio 
de Janeiro. 
Psilopa aciculata Loew, Monogr. i, 142; Williston, Dipt. St. Vincent, 394, pl. 
“a Patiala ni) 
Specimens of this species from Rio de Janeiro agree with others 
from St. Vincent and Grenada. 
Psilopa nigrimana Williston, Dipt. St. Vincent, 363. 
Several specimens from Brazil agree with the type specimens. 
Pailopa metallica Schiner, Novara, Diptera. 
Face narrow, not projecting in profile, shining metallic green, 
with a single bristle ‘on each side below; on either side 
a row of slight inequalities. Antenne yellow; arista with 
about eight rays. Front shining green, very finely aciculate. 
Scutellum more purplish, with four strong bristles. Pleuree, shin- 
ing green and black. Abdomen deep metallic green or brassy, the 
fourth segment about as long as the two preceding together. Legs 
black; the knees and all the tarsi yellow. Wings yellowish, the 
‘mmediate root blackish; second and third sections of the costa of 
nearly equal length. Length 2 mm. 
There are some discrepancies from Schiner’s description, as will 
be seen, but I hardly doubt the identity. 
Brachvdeutra argentata Walker, Dipt Saund. (Vot¢phiia. ) 
Brachydeutra dimidiata Woew, Monogr. stc..1, 163. 
