186 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 63 



equally rounded at both ends, strongly convex and slightly project- 

 ing; epistoma flat and rather narrowly and deeply arcuately emargi- 

 nate in front. Pronotum moderately convex, two times as wide as 

 long, distinctly narrower in front than behind, widest at base; sides 

 when viewed from above are parallel at apical angles, then obliquely 

 dilated to the base ; anterior margin feebly arcuate ; base nearly trans- 

 versely truncate to middle of elytron, then turning obliquely back- 

 ward to the scutellum, in front of which it is feebly arcuately emar- 

 ginate; surface with a narrow transverse depression along the ante- 

 rior margin, connected at each side to a broad concave depression ac 

 the lateral margin, which extends obliquely backward and then 

 transversely along base, these depressions cause the surface to be 

 broadly transversely elevated on the disk anteriorly, sparsely irregu- 

 lar ocellate-punctate, the punctures more widely separated on the 

 disk, and from the center of each arises a short inconspicuous cine- 

 reous hair: intervals nearly smooth (obsoletely reticulate under a 

 high-power lens). Scutellum triangular, feebly rounded in fronc, 

 with the surface finely and obsoletely reticulate. Elytra moderately 

 convex, not quite as wide as pronotum at base; humeral angles ob- 

 tusely angulated ; sides strongly arcuately concave from the humeral 

 angles to middle, where they are broadly rounded and wider than at 

 base, then strongly obliquely attenuate to the tips, w^hich are con- 

 jointly broadly rounded and obsoletely serrulate ; humeri well devel- 

 oped ; each elytron with a deep, broad basal depression, and without a 

 lateral carina; surface with distinct rows of shallow, feebly defined 

 punctures, which are larger at the base but gradually becoming 

 smaller toward the apex, where they are nearly obsolete, the bottom 

 of each puncture is obsoletely granulose, with a short inconspicuous 

 cinerous hair arising from the center; intervals smooth on disk, be- 

 coming feebly rugose at the sides, especially in the humeral regions. 

 Abdomen beneath strongly convex, sparsely and rather obsoletely 

 punctate, the punctures very shallow, rounded, open on the one side, 

 larger and more closely placed on the first segment, but becoming- 

 very small on the last one, each puncture bearing a short recumbent 

 cinerous hair ; intervals finely and obsoletely reticulate ; last segment 

 broadly rounded at apex, with the apical groove following the outline 

 of the lateral margin, but not extending to it. Prosternum densely 

 and finely reticulate-punctate. Front and middle tibiae moderately 

 arcuate. 



Length, 3.5 mm.; width, 1.35 mm. 



Ty'pe locality. — Montserratt, Trinidad, West Indies. 



Type and paraty pes. —Cdii. No. 26816, U.S.N.M. 



Described from four specimens collected by August Busck, two of 

 which were collected at the type locality, June 28 and 29, one at Port 



