106 AMERICAN COLEOPTERA. 



almost to the base, the hind angles a little prominent, slightly obtuse, 

 not rounded, the outer sides parallel for a short distance ; apical angles 

 slightly obtuse and narrowly rounded ; surface very sparsely irreguarly 

 punctate, the median impressed line very indistinct and incomplete. 

 Elytra a little longer than the prothorax, nearly as long as wide, at 

 base just visibly wider than the prothorax, sides slightly divergent, 

 conjointly broadly angulate emarginate at apex, the sutural angles 

 very narrowly rounded ; punctuation rather strong and close. Abdo- 

 men with a few scattered fine punctures above, beneath sparsely finely 

 punctate. Prosternal sutures obsolete, hypomera strongly narrowly 

 impressed along the outer margin, within the impression feebly con- 

 vex, strongly narrowed in front, the width at apex being but little 

 more than half that at base, where it is nearly twice as great as the 

 distance to the coxse ; coxal fissures short, rather narrowly open. 

 Length 4.1 mm. 



Thorton, New Mexico. (Dr. Fenyes.) 



This species is from description closely related to cuspi- 

 datus and tenuis. The former is considerably larger (5.5 

 mm.), the head is said to have a large vertical fovea, and 

 the hind angles of the prothorax are wanting. 



Temiis agrees more nearly in size (4.5 mm.), and has the 

 hind angles of the prothorax minutely prominent, but the 

 epistomal suture is feebly impressed and the vertex not 

 tuberculate. 



B. tallaci n. sp. 



Black, elytra dark red-brown, feebly clouded with piceous at base, 

 abdominal apex narrowly paler, legs rufous. Head and prothorax 

 densely strongly granulato-reticulate, the former dull, the latter very 

 feebly shining ; elytra polished ; abdomen distinctly reticulate, moder- 

 ately strongly shining. Antennae rufous at base, darker externally ; 

 second and third joints subequal, tenth as long as wide. Head finely, 

 sparsely, obsoletely punctate at sides posteriorly, occipital fovea small, 

 the surface in front of it faintly tumid ; epistomal suture fine, scarcely 

 impressed, the anterior angles of epistoma finely tuberculate. Eyes 

 rather large and prominent. Prothorax a little wider than the head, 

 one-seventh wider than long, sides straight and parallel from apical 

 fifth to three-fifths, convergent and nearly straight behind, the lateral 

 angles somewhat evident, the basal ones rounded and indistinct, sides 

 rounded in front, the apical angles obtuse and narrowly rounded ; 

 median line deeply impressed, punctuation rather close and coarse. 

 Elytra at base slightly, near the apex one-fourth wider than the pro- 

 thorax, the suture slightly longer, the maximum length three-sevenths 

 longer than the prothorax, very little wider than long, punctuation 



