266 GEO. H. HORN, M. D. 



flattened with irregularly placed coarse puactures but without depressed spiee, 

 sides more densely punctured. Elytra slightly wider than the thorax, paler 

 than it and with the sides narrowly, apex more widely piceous, surface striate, 

 striae fine with fine distant punctures, striae at sides replaced by irregularly 

 placed punctures. Body beneath nearly smooth. Abdomen with puactures 

 distinctly visible on the last two segments only, first segment with coxal lines. 

 Length .08 inch; 2 mm. 



This species closely resembles the preceding in form and color but 

 is more depressed, smoother beneath and with no strioe on the sides 

 of the elytra. 



Occurs under bark, in the desert regions of south-eastern California. 



B. adustum Reitter, from Mexico, is closely allied to this species, 

 it is however more convex, the thorax with more punctures, the elytra 

 more evidently striate and the strige more deeply and closely punc- 

 tured. It is as smooth beneath as striatum. 



B, striolatiilll Reitter, (Rhizoph.), Verhandlungen des naturforschenden 

 Vereins in Brunn, xii, 1872, (Sonderabdruck p. 14). — Piceous or rufo-piceous, 

 antennse and legs paler, form moderately elongate, subdepressed. Head coarsely 

 but not densely punctured. Thorax slightly wider than long, sides feebly arcu- 

 ate and gradually narrowed posteriorly, and obsoletely bidenticulate, disc sub- 

 depressed, moderately coarsely but not densely punctured, punctures of the 

 middle subconfluent forming a vague U-shaped mark. Elytra slightly wider 

 than the thorax, slightly convex, surface striate, striae with fine not closely 

 placed punctures, intervals finely alutaceous, striae at sides replaced by sparse 

 punctures. Abdomen coarsely punctured, first segment very finely and sparsely 

 punctured and with distinct coxal lines. Length .08 inch; 2 mm. 



This species is the most convex in our fauna. Its cplor varies from 



piceous to testaceous, and certain individuals present the appearance 



of a paler elytral vitta extending from the humeri toward the tip. 



Hexperohseivis testacens Motsch., seems to be merely an immature form. 



Occurs from Canada to Florida. 



B. Fryi n. sp. — Pale rufous, elytra rufo-testaceous, elongate, subdepressed. 

 Head sparsely punctate. Thorax quadrate, angles obtuse, sides straight, parallel, 

 margin posteriorly obsoletely bidentate, disc flattened, very sparsely and irregu- 

 larly punctured and with a feeble creseentie subbasal impression. Elytra 

 slightly wider than the thorax, slightly convex, sides parallel, surface with 

 rows of fine distant punctures, sides smooth. Body beneath nearly impunc- 

 tured. First segment of abdomen with scarcely any trace of punctures and 

 with distinct coxal lines, segments two to four with fine punctures, last seg- 

 ment more distinctly punctured. Pygidium sparsely punctured. Length .08 

 inch ; 2 mm. 



I have before me two specimens of this species, collected by 

 Alexander Fry, Esq., of London, during a visit to Brazil, at Rio 

 de Janeiro. 



This species is introduced here to show the generic distribution. 



