222 J. L. LECONTE, M. D. 



10. B. cnspldatlis, n. sp. — Blackish-brown, prothorax red-brown, elytra, 

 antennae, palpi and legs yellow-brown. Head finely granulated, with a large 

 puncture on the vertex. Prothorax more finely granulated, somewhat shining, 

 convex, punctures rather large, scattered, dorsal line fine; scarcely as long as 

 wide, front angles rounded, sides parallel, then rounded into the base, with- 

 out hind angles. Elytra brownish-yellow, suture dusky, finely rather densely 

 punctured, shining. Dorsal segments smooth, shining; ventral densely finely 

 punctured. Margin of prothorax acute, flanks narrowly but deeply concave, 

 with a very faint impressed line parallel with the margin. Mandibles bisinu- 

 ate on the inner edge, indicating two broad, but feeble teeth. Length 5.6 mm ; 

 2.2 inch. 



%. — Epistoma with the anterior angles elevated into acute cusps; supra- 

 antennal ridges acutely elevated; a very small tubercle at the middle of the 

 vertex; eighth ventral segment acutely triangularly incised, and with a fine 

 impressed line. 



9. — Cusps of epistoma and supra-antennal ridges less developed; eighth 

 ventral segment rounded at tip. 



Dacota; one pair kindly given me by Mr. Ulke. 



11. B. ]>olitll$$, Er. Staph. 766. — Shining, piceous, prothorax ferruginous, 

 elytra, antennae, palpi and legs brownish-yellow. Head finely granulate, opake, 

 without any impression on the vertex. Prothorax not longer than wide, convex, 

 polished, sparsely and coarsely punctured, dorsal line deep; sides parallel, 

 rounded into the base, without hind angles. Elytra shining, coarsely and 

 sparsely punctured. Dorsal segments smooth, ventral sparsely finely punctu- 

 late. Margin of prothorax acute, flanks narrowly but deeply concave, and 

 with a distinct impressed line parallel to the margin; an impression also ex- 

 tends transversely from the fissure of the front coxal cavities to this line, but 

 the fissure is not open, and the prosternal suture is not visible. Length 3.7 mm : 

 .15 inch. 



One female, Coney Island, near New York, July. Erichson's de- 

 scription agrees with this specimen except that the characters of the 

 head indicate a male, with the epistomal cusps, elevated supra-antennal 

 ridges, and small vertical tubercles. 



12. B. flavipcnnis, Lee, New Spec. Col. (Smithsonian 8vo), 52. — Dark- 

 brown, base of antennfc, elytra and legs yellow-brown; prothorax reddish- 

 brown. Mandibles with two obtuse teeth on the inner edge. Head opake, 

 fineh' granulate, with a short impression on the vertex. Prothorax not shining, 

 not longer than wide, sides parallel, rounded behind into the base, as in the 

 other members of this group, feebly and sparsely punctured, dorsal line ipdis- 

 tinet. Elytra shining, finely but strongly punctured, suture dusky. Abdomen 

 with the tip paler, dorsal segments nearly smooth, ventral punctured. Side 

 margin of prothorax acute, flanks narrowly concave, with an indistinct line 

 parallel to the margin. Length 4.2 — 5.3 mm; .17 — .21 inch. 



% . — Front angles of the epistoma produced into slender erect horns, recurved 

 at tip; supra-antennal ridges acutely and strongly elevated; vertex with a 

 tubercle which is divided by the short impressed line. 



9 • — Front angles of epistoma acute but not elevated ; supra-antennal ridges 

 and vertical tubercle less developed. The last ventral segments are alike in 

 both sexes. 



San Diego, California; twelve specimens. 



