224 J. L. LECONTE, M. D. 



punctured. Side margin of prothorax fine, flanks convex, episterna triangular, 

 subopake; prosternuin feebly punctured. Length 7 ram; .27 inch. 



% . — Sixth ventral segment deeply emarginate in the arc of a circle; eighth 

 acutely incised at tip; incisure closed by membrane. 



One specimen ; Fort Pierre, Nebraska. 



15. B. rumatu!^, Lee. New Sp. Col. (Smithsonian 8vo), 52. — Chestnut- 

 brown, shining, elytra red-brown; legs and usually the tip of the abdomen 

 brownish-yellow. Head opake, finely granulate, obsoletely sparsely punctu- 

 late, with a small vertical puncture. Prothorax not wider than long, rounded, 

 truncate in front, strongly punctured, dorsal line deep. Elytra strongly but 

 less coarsely punctured. Dorsal segments sparsely punctulate, ventral segments 

 finely punctured. Side margin and flanks of prothorax as in the preceding, 

 but the episterna are less convex, and even slightly concave along the side 

 margin. Length 5 — 6 mm; .20 — .24 inch. 



'J,.— Sixth ventral segment broadly and obtusely emarginate; eighth not 

 incised. J. — Sixth ventral truncate. 



Illinois and Canada; four specimens. 



16. B. iiitidiceps, n. sp. — Black, shining, antennae, legs and elytra red- 

 brown. Head shining, sparsely punctured, vertex somewhat elevated, with a 

 large puncture at the middle. Prothorax longer than wide, sides nearly straight 

 for three-fourths the length, less suddenly rounded behind than usual, surface 

 polished, punctures deep, scattered, not very coarse; dorsal line deep. Elytra 

 strongly punctured. Dorsal segments finely punctured with longer and more 

 numerous hairs than usual; ventrals finely punctured. Side margin of pro- 

 thorax fine, episterna flat, triangular, slightly concave along the margin. 

 Length 7 mm ; .28 inch. 



Los Angeles and Wilmington, Gala.; Mr. Crotch. No sexual differ- 

 ences observed. 



17. B. opacifrons, n. sp. — Black, less-shining; antennse and legs brown. 

 Head opake, finely granulate, impunctured, with a small fovea at the vertex. 

 Prothorax with sides nearly parallel, then rounded into the base, sparsely 

 punctured, finely granulate, dorsal line fine. Elytra coarsely not densely 

 punctured. Dorsal segments feebly punctulate, ventrals finely punctured, tip 

 brown. Side margin of prothorax acute, flanks concave along the margin ; 

 episterna triangular. Length 4 ram; .16 inch. 



Los Angeles and San Diego, Cala. ; Mr. Crotch. No sexual differ- 

 ences observed in three specimens examined. 



18. B. rubigitiosns, Er. Staph. 765. — Rufo-testaceous, somewhat shining. 

 Head darker, sparsely and feebly punctured, almost imperceptibly granulate. 

 Prothorax coarsely, rather densely punctured, dorsal line deep. Elytra deeply 

 rather densely punctured. Dorsal segments sparsely punctulate; ventrals more 

 distinctly finely punctured. Side margin of prothorax fine, episterna triangular, 

 slightly concave along the margin. Mandibles compressed, toothed so as to 

 form a right angle near the tip, which is not very slender. Lengtii 5.2 mm; 

 .21 inch. 



South Carolina. No sexual differences seen in eight specimens 

 examined. 



