ROLAND HAYWARD. 97 



G8. B. graviliforiiie n. sp. — Form slender, elongate, slightly convex. Head 

 and tborax nigro-ajneons, often tinged with cupreous, shining; elytra geneo-pice- 

 ous with an irregular humeral blotch, a transverse band behind the middle and 

 the apex obscurely testaceous, the markings ill-defined. Head very finely aluta- 

 ceous, as wide as the thorax at apex; palpi piceous ; antenuse. rather more than 

 one-half the length of the body, piceous. the basal joints slightly paler. Pro- 

 thorax slightly subcordate, about one-half wider than long, slightly narrower at 

 base than apex ; apex feebly emarginate; median line deep, abbreviated behind : 

 transverse impressions distinct ; basal impressions deep, bistriate : sides with the 

 margin narrowly, but distinctly reflexed, strongly arcuate nearly to base, deeply 

 sinuate in front of the hind angles, which are rectangular and carinate. Elytra 

 slightly wider than the thorax, elongate, oblong-ovate, moderately deeply striate, 

 less deeply towards the sides; striae entire, distinctly punctate to behind the 

 middle, the seventh, or more rarely the fifth, grooved at tip; intervals convex, 

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

 about one-third from apex. Beneath black, slightly aeneous, shining, the abdo- 

 men more or less rufous, especially towards the tip. Legs testaceous. Length 

 .20-.23 inch; ,5-5.75 mm. 



Very close to dentellum., but distinct by the form of the tliorax, 

 which is slightly narrower at base than apex, with the sides more 

 strongly arcuate and sinuate for a shorter distance behind. The 

 basal impressions are less broad. The form is more slender, and the 

 elytral markings are even less defined than in average specimens of 

 the latter species, with which it has been confused in collections. 

 The legs are always testaceous. 



It is known to me from Massachusetts, Pennsylvania, Michigan, 

 Illinois and Iowa. 



69. B. cleiltelliiili Thunb.— Form slightly elongate, feebly convex. Head 

 and thorax nigro-seneous, often tinged with greenish, especially along the margin : 

 elytra dark brownish piceous with an irregular subhumeral blotch, a transverse 

 band behind the middle and the apex paler, the markings more or less ill-defined. 

 Head rather finely alutaceous, as wide as the thorax at apex ; palpi piceous; an- 

 tennae about one-half the length of the body, piceous, the first joint more or less 

 rufous. Prothorax subquadrate, about one-half wider than long, as wide at base 

 as apex ; apex feebly emarginate ; median line distinct, abbreviated in front ; 

 transverse impressions distinct; basal impressions broad, deep, bistriate; sides 

 with the margin narrowly but distinctly refiexed, arcuate in front, sinuate behind ; 

 hind angles rectangular, carinate. Elytra less than one-half wider than the 

 thorax, oblong-ovate, moderately deeply striate, more finely at the sides; strife 

 entire, punctate to behind the middle, the seventh grooved at tip; intervals 

 feebly convex, the third with the first dorsal puncture about one-third from base, 

 the second about one-third from apex. Beneath black, shining. Legs var3'ing 

 from rufous to rufo-piceous. Length .20-. 24 inch ; 5-6 mm. 



This species quite closely resembles graciliforme. The thorax, 

 however, is subquadrate, and as wide at base as a})ex, with the sides 

 less strongly arcuate in front and less dee[)ly sinuate behind. The 



TKANS. AM. ENT. SOC. XXIV. (13) MARCH, 1897. 



