50 PROCEEDINGS OF THE NATIONAL MUSEUM. vou. 62. 
anterior median part of the disk to be regularly convex; there is a 
distinct straight carina on each side in the flattened area, which 
does not reach the base, nor anterior margin, finely and sparsely 
punctate on the disk, with large, round, shallow punctures in the 
flattened areas, sparsely clothed with long, recumbent, pale-yellow 
hairs (with a few fulvous ones intermixed); intervals obsoletely 
granulated. Scutellum finely granulated, triangular, anterior margin 
rounded. Elytra distinctly narrower than the pronotum at base; 
humeral angles broadly rounded; sides nearly parallel to the middle 
(feebly sinuate at the basal fourth), then obliquely attenuate to the 
tips, which are conjointly broadly rounded, with the lateral margins 
entire; humeri moderately prominent. Hach elytron with a broad, 
deep depression at the base, and a deeper one behind the humerus 
between the lateral carina and lateral margin, and with a distinct 
sinuate lateral carina extending from the humeral angle to near the 
apex; with two fine lines of fulvous hairs extending from the base 
to near the middle; the basal two-thirds is irregularly and sparsely 
clothed with rather long, recumbent, pale-yellow hairs (with a few 
fulvous ones intermixed), leaving a small bare space at the suture, 
just in front of the middle; behind this there is a rather broad fascia 
of semierect fulvous hairs, with the margins very wregular; apical 
fourth sparsely clothed with rather long, recumbent, pale-yellow 
hairs, inclosing three small, round spots of fulvous hairs, two placed 
transversely at the middle, and the other one at the apex; surface 
finely and rather densely punctate, with a few stelliform punctures 
along the lateral carina; intervals nearly smooth. Abdomen beneath 
moderately convex, sparsely punctate, the punctures large, shallow, 
and open on the one side, and from each puncture arises a rather 
long, recumbent, cinereous hair; intervals finely and densely granu- 
lated; last segment broadly rounded at apex, with the margin entire. 
Length, 2.75 mm.; width, 1.4 mm. 
Type locality—Ancon, Canal Zone, Panama. 
Type.—Cat. No. 251138, U.S.N.M. 
Described from a unique male collected by E. A. Schwarz May 
5, 1911. 
BRACHYS NIGROVIRIDIS, new species. 
Male.—Broadly cuneiform, distinctly longer than wide, broadly 
rounded in front, narrower behind than in front, moderately shining, 
and sparsely pubescent, uniformly piceous above, with a slight green- 
ish tinge on the elytra; beneath piceous. 
Head feebly convex, broadly and deeply, longitudinally grooved 
from occiput to epistoma, the groove becoming more shallow on the 
occiput; surface densely and coarsely granulated, with a few incon- 
spicuous punctures intermixed, sparsely clothed with short, recum- 
bent, cinereous hairs behind the epistoma, along the eyes, and on the 
