228 J. L. LECONTE, M. D. 



25. B. sinuatllS, n. sp. — Blackish-brown or brown, with head and pro- 

 thorax darker; antennse and legs ferruginous. Head subopake, distinctly 

 granulate, sparsely punctured behind, with a small occipital fovea, and a short 

 transverse line. Prothorax wider than long, rounded on the sides, which are 

 subsinuate near the base, angles distinct, slightly prominent; disc subopake, 

 granulated, sparsely distinctly punctured, dorsal line very fine, nearly obso- 

 lete. Elytra strongly punctured, convex, scarcely impressed. Dorsal segments 

 sparsely punctulate, ventrals distinctly sparsely punctured. Flanks of pro- 

 thorax slightly concave behind, nearly flat in front, episterua moderately wide, 

 with an impressed line extending behind the coxal fissures which are large 

 and open. Length 4 mm ; .16 inch. 



^. — Eighth ventral segment with two distant impressed, slightly converging 

 lines; mentum with a small rounded shallow impression, (body dark-brown). 

 Canada. 



9. — Eighth ventral segment slightly impressed; mentum nearly flat; (body 

 brown, head and prothorax darker). Illinois. 



I have doubtfully associated these two specimens together, as they 

 agree, except in color and in the impression of the mentum. Should 

 they prove with larger material to be distinct, the female may be 

 regarded as the type, and a new name imposed on the Canadian 

 darker form. 



26. B. aiimilaris, Lee. New Sp. Col. (Smithsonian 8vo), 53. — Brownish- 

 black, elytra and abdomen sometimes reddish-brown, the latter indistinctly 

 fasciate; antennae, mouth organs and legs ferruginous. Head finely granu- 

 lated, sparsely punctured, with a small fovea at the vertex. Prothorax not 

 wider than long, rounded on the sides, hind angles obtuse, distinct; disc finely 

 granulated, subopake, sparsely not deeply punctured, dorsal line fine. Elytra 

 deeply and densely punctured. Dorsal segments sparsely punctulate, ventrals 

 finely sparsely punctured. Side margin of prothorax acute, episterna narrow, 

 concave, prosternal sutures extending behind the coxal fissures, which are 

 long and open. Mentum broadly but feebly concave behind. Length 3.3 mm; 

 .13 inch. 



'J,. — Last (eighth), ventral segment deeply and acutely incised. 



Lake Superior, Illinois, Missouri, Georgia, British Columbia and 

 Vancouver's Island. 



This and the nest three species have an almost deceptive resem- 

 blance, but are to be distinguished by the characters of the upper 

 and lower surface of the prothorax. 



27. B. COnfuSUS, n. sp. — Brownish-black; elytra sometimes red-brown, 

 antennte piceous, base ferruginous, legs dark ferruginous. Head opake, less 

 finely granulate, obsoletely sparsely punctured. Prothorax wider than long, 

 more rounded on the sides, hind angles very obtuse and rounded; disc less 

 finely granulated, opake, sparsely punctured, dorsal line fine. Elytra strongly 

 rather densely punctured. Dorsal and ventral segments, and under surface 

 of prothorax just as in B. annularis. Mouth ferruginous, mentum broadly 

 concave. Length 3 mm ; .12 inch. 



% . — Last ventral segment with a small acute incision which is closed by 

 membrane. 



