58 AMERICAN COLEOPTERA. 



Elytra with all the striae entire. 



Elongate, slightly depressed ; black, scarcely feneous ; thorax slightly wider 

 than long, as wide at base as apex ; elytra deeply striate, the strise finely 

 punctate ; legs black. Length .15-. 19 inch recticolle Lee. 



More robust ; nigro-seneous. elytra sometimes tinged with brownish ; thorax 

 one-half wider than long, scarcely narrower at base than apex : elytra 

 deeply striato-punctate ; legs piceous or rufo-piceous. Length .15-.20 



inch concolor Kirby. 



Elytra with the first, second and fifth or seventh striae entire; thorax one-half 

 wider than long ; legs piceous or black. 



Black, slightly aeneous ; thorax as wide at base as apex ; apex emarginate. 

 Length .16-.19 inch qiiadruluni Lee. 



More elongate ; thorax narrower at base than apex ; apex truncate. Length 

 .15-.18inch lougiilum Lee. 



21. B. iiigrnin Say. — Form robust, convex; color nearly black, shining, the 

 head and thorax usually slightly bronze, the elytra somewhat aeneous, often 

 tinged with green. Head as wide as the thorax at apex ; palpi rufous, slightly 

 darker at tip; antennae about one-half the length of the body, dark fuscous, the 

 basal joints testaceous. Prothorax about one-half wider than long, slightly nar- 

 rower at base than apex ; apex truncate ; median line distinct, abbreviated before 

 and behind ; anterior transverse impression nearly obsolete, the posterior distinct ; 

 basal impressions broad, deep, bistriate; sides with the margin narrowly reflexed, 

 arcuate in front, obsoletely sinuate behind ; hind angles subrectangular, finely 

 carinate. Elytra about one-half wider than the thorax, oblong-oval, deeply 

 striata; striae dilated, deeply punctate, the punctures becoming evanescent be- 

 hind, the first and second entire, the others abbreviated behind, becoming shorter 

 as they approach the sides, the fifth represented by a groove at tip ; third stria 

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

 third from apex, intervals convex. Beneath black, shining. Legs rufous, or 

 rufo-testaceous. Length .15-. 18 inch ; .3.75-4.5 mm. 



A very pretty little species, easily recognizable from the others of 

 the group by its more robust and convex form and by the striation 

 of the elytra. 



It is widely distributed throughout the Eastern and Central States, 

 being known to me from the New England States, New York, New 

 Jersey, Pennsylvania, Delaware, Maryland, Georgia, the Lake Su- 

 perior region, Iowa and Missouri. 



22. B. brevist riatiim n. sp. — Form slightly elongate, convex ; color black, 

 slightly a'ueous, shining. Head as wide as the thorax at apex; palpi rufo-testa- 

 ceous. darker towards the tip ; antennae about one-half as long as the body, dark 

 fuscous, the basal joints paler. Prothorax slightly subquadrate. sc^arcely one- 

 half wider than long, slightly narrower at base than apex ; apex nearly truncate; 

 median line fine, sub-entire ; transverse impressions very feeble ; basal impres- 

 sions modeiately deep, rather feebly bistriate; sides with the margin very nar- 

 rowly reflexed, arcuate in front, slightly sinuate behind ; hind angles rectangular, 

 with a short, fine carina. Elytra about one-half wider than the thorax, oblong- 

 oval, with rows of not closely placed, deep punctures, in place of striae, not at- 



