40 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. 66 



mai'jLrin, extendin«: alon^ the maro;in from humeral a,n<i}e to middle, 

 and broadly expanded behind the humerus ; surface glabrous, finely, 

 sparsely and irregularly punctate, with the intervals smooth. Ab- 

 domen beneath finely and densely reticulate-striolate, with a few 

 fine obsolete punctures intermixed, and sparsely clothed with very 

 short inconspicuous hairs; first segment coarsely, longitudinally 

 striate at base. Prosternum glabrous, and smooth along anterior 

 margin; prosternal process broad, the surface densely and very 

 coarsely punctate. Metasturmim obsoletely reticulate, with a few 

 indistinct punctures and longitudinal striae intermixed; anterior 

 margin feebly arcuately emarginate. 



Length, 2.7 mm. ; width, 1.4 mm. 



Type locality. — Reyes, Bolivia. 



Type,— C^Ll^o. 26991, U.S.N.M. 



Described from a unique female collected at the type locality 

 during October, 1921. 



LEIOPLEURA BOLIVIANA. new species 



Male. — Broadly oblong, rather strongly convex, about equally 

 rounded in front and behind, and strongly shining; head, pronotum 

 and elytra bright green, with the posterior margin of head, a narrow 

 oblong spot on disk of the pronotum, and scutellum fuscous, the 

 elytra more or less blackish-cyaneous on humeri and along the 

 lateral margins; beneath black. 



Head moderately, evenly convex, not depressed on the front, but 

 with a very narrow longitudinal groove extending from the occiput 

 to a deep round pit behind the epistoma, the groove obsolete on the 

 occiput, but more distinct on the front; surface glabrous, sparsely, 

 coarsely and irregularly punctate, and the intervals smooth on the 

 vertex and occiput, but becoming finely and densely granulose 

 toward the epistoma; antennae short and entirely piceous. Prono- 

 tum moderately, evenly convex, two and one-half times as wide 

 as long, much narrower in front than behind, and widest at base; 

 sides feebly arcuate near base, then strongly obliquely attenuate to 

 the anterior angles; posterior angles feebly projecting and rather 

 acute; anterior margin broadly arcuately emarginate; base nearly 

 transversely truncate to middle of elytron, where it is feebly emar- 

 ginate, then turning obliquely backward to the scutellum, in front 

 of which it is truncate; surface strongly declivous toward the an- 

 terior angles, with a broad obsolete depression on each side at base 

 near middle of elytron, and without a lateral carina, coarsely, 

 rather densely and irregularly punctate, the intervals nearly smooth 

 on the disk, but becoming densely and rather coarsely reticulate 

 toward the sides. Scutellum triangular, sides about equal in length, 



