38 PROCEEDINGS OF THE NATIONAL MUSEUM. vou. 62. 
abruptly sinuate at elytral lobes; hind angles acute, scarcely pro- 
jecting beyond the humeral angles of the elytra and fitting closely 
to them; surface sparsely punctate, and very densely granulated at 
the sides, the punctures large and very shallow, very sparsely clothed 
with short, inconspicuous hairs. Scutellum finely, densely granu- 
lated, and glabrous, the anterior angles acute. Elytra as wide as 
pronotum at base, slightly wider at basal fourth; humeral angles 
obtusely rounded; sides feebly rounded to near the middle, then 
obliquely attenuate to near the tips, which are conjointly rounded; 
the lateral margin feebly serrate, and when viewed from the side is 
nearly straight, with scarcely any sinuation for the insertion of the 
posterior femora; each elytron with a shallow depression between 
the humerus and lateral margin, extending along margin from the 
humeral angles to a broad, deep depression behind the humerus, and 
with only a trace of a basal depression; surface rather densely and 
coarsely punctate, the punctures becoming obsolete on the coppery 
colored apical area, where the surface is rather finely and densely 
reticulate, sparsely clothed with very short, inconspicuous hairs. 
Abdomen beneath moderately convex, sparsely and very finely 
punctate, and clothed with a few inconspicuous hairs; intervals 
very finely and obsoletely reticulate; last segment rather acute at 
the apex, with the portion in front of the marginal groove broadly 
rounded, with an acute tooth at the apex. LElytral epipleura narrow. 
Metasternum more coarsely punctured than the abdomen, the punc- 
tures large aud very shallow, and rather deeply emarginate in front. 
Prosternum feebly, arcuately emarginate in front; prosternal process 
rather wide, about four times as wide as the coxal cavities, sides 
nearly parallel, and very broadly rounded at apex; episternum short, 
flat, and triangular. Prothoracic epipleura wide and nearly flat; 
antennal groove deep, following the suture between the episternum 
and prothoracic epipleura into the latter, and extending to the 
lateral margin behind the middle, and nearly parallel to it; lateral 
margin nearly rectangular. 
Female.—Differs from the male in having the head and pronotum 
of a uniform bluish-green color, and the last abdominal segment 
feebly produced at apex, with four teeth placed slightly obliquely on 
each side, the two sets of teeth separated by a very narrow space, 
the first tooth is rather acute and separated at base, second and 
third teeth broad, parallel, broadly rounded at apex and connate at 
base, and the fourth one very acute and slightly shorter than the 
others; the portion in front of the marginal groove broadly rounded 
at apex without median depression. 
Length, 2.6 mm.; width, 1.75 mm. 
Type locality.— Paraiso, Canal Zone, Panama. 
Other localities.—Taboga Island, Canal Zone, Panama. 
