ROLAND HAYWARD. 71 



very finely carinate. Elytra very slisclitly wider than the thorax, elongate, ob- 

 long-ovate, subparallel, moderately deeply striate; striae entire, very finely or 

 obsoletely punctulate in front of the middle, the fifth slightly grooved at tip; 

 third stria with the first dorsal puncture about cue-third from base, the second 

 about one-fourth from apex ; intervals nearly flat. Beneath piceous or nearly 

 black, more or less shining, the ventral segments usually piceous, margined with 

 rufous. Legs rufous. Length .21-.2.5 inch ; 5.25-6.25 mm. 



This species is distinct from the others of the group by the char- 

 acters given above. It is subject to but slight variation. In some 

 specimens the body beneath is rufo-piceous with the abdomen entirely 

 rufous. This is, however, probably due to immaturity. 



It seems most nearly related to guexi. 



Specimens are known to me from Lowell, Mass. (Blanchard)^ 

 New Jersey, Pennsylvania, the District of Columbia and Texas. 

 Both sexes have been examined. The type is in Dr. Horn's collec- 

 tion. 



39. B. giiexi Chaud. — Form moderately elongate, depressed. Head and 

 thorax nigro-seneous, often with slightly greenish lustre ; elytra usually dark 

 brown, darker at tip, rarely entirely piceous ; head moderate, as wide as the tho7-ax 

 at apex ; palpi rufous, darker towards the tip ; antennfe about one-half the length 

 of the body, dark fuscous, the basal joints rufous. Prothorax about one-half 

 wider than long, very slightly narrower at base than apex, feebly rugose at base ; 

 apex slightly emarginate ; median line distinct, abbreviated at each end ; trans- 

 verse impressions distinct ; basal impressions broad, feebly bistriate, the outer 

 stria small ; sides with the margin distinctly reflexed, arcuate in front, feebly or 

 obsoletely sinuate behind ; hind angles sub-rectangular, obsoletely carinate. 

 Elytra nearly one-half wider than the thorax, oblong-ovate, deeply striate on the 

 disc, much less deeply at sides and apex; striae finely punctate in front of the 

 middle, the five inner entire, the sixth and seventh more or less abbreviated 

 behind, the latter often wanting, the fifth grooved at tip; third stria with the 

 first doi'sal puncture about one-third from base, the second about one-fourth from 

 apex; intervals convex. Beneath nearly black, shining. Legs rufous. Length 

 .19 .22 inch ; 4.75-5.5 mm. 



Much less slender than the preceding. The thorax is less distinctly 

 narrower at base than apex, with the sides but feebly sinuate behind. 

 The elytra are wider as compared with the thorax, and the five inner 

 striae only are entire. The elytra vary somewhat in color, being 

 usually dark brown with the tip and often the side margins darker ; 

 the darker color sometimes also extends along the suture, and in 

 some specimens they are entirely piceous. The head is narrower as 

 compared with the thorax than in grandiceps, from which and from 

 fugax it seems sufficiently distinct by the characters above given. 



It is known to me from Vermont, Massachusetts, Connecticut, 

 New Jersey, Pennsylvania, Virginia and the Lake Superior region. 



TRANS. AM. ENT. SOC. XXIV. MARCH, 1897. 



