130 Journal New York Entomological Society. [Voi. v. 



Broad, dilated, depressed ; thorax narrower at base than apex, sides strongly 

 arcuate in front, sinuate behind, hind angles obtuse ; elytra moderately 

 deeply striate, much more finely at tip; legs dark rufous. Length, .26-. 29 

 inch ; 6.5-7.25 mm, dilatatum. 



More elongate, feebly convex ; thorax scarcely narrower at base than apex, 

 sides slightly arcuate in front, feebly sinuate behind, hind angles subrect- 

 angular ; elytra more deeply striate ; legs piceous, the femora at base and 

 the tibiae often rufous. Length, .23-. 27 inch; 5.75-6.75 mm. .honestum. 



More convex ; thorax more narrowed behind, apex truncate, sides strongly 

 arcuate in front, sinuate behind, hind angles subrectangular ; elytra more 

 deeply striate, the stria; more deeply, almost crenulately punctate. Length, 

 .22-.25 inch ; 5.5-6.25 mm chalceum. 



Elongate, depressed ; thorax slightly narrower at base than apex, sides arcuate 

 infront, sinuate behind, hind angles acute, slightly prominent; elytra moder- 

 ately finely striate, the strife distinctly punctate, with an ill-defined discal 

 spot about one-third from apex testaceous; legs rufous. Length, .20-. 23 

 inch ; 5-6. 75 mm blanchardi. 



15. Robust, very convex; nigro-seneous often tinged with green; thorax one-halt 



wider than long, narrower at base than apex ; elytra deeply striato-punctate, 

 the striae dilated, the first and second entire, the fifth represented by a 

 groove at apex; base of antennae and legs rufous. Length, .15-. 18 inch; 

 3 75-4 5 mm , nigrum. 



Less convex, elongate ; black, slightly aeneous ; thorax narrower at base than 

 apex, apex truncate ; elytra with the first, second, third and seventh strici; entire ; 

 legs dark piceous or black. Length,.i5-. 18 inch; 3.75-4.5 mm., .longulum. 



More robust than longuhiiii ; nigro-jeneous, the elytra sometimes tinged with 

 brown ; thorax scarcely narrower at base than apex, about one-half wider than 

 long; elytra with all the striae entire; legs piceous or rufo piceous. Length, 

 . 15-.20 inch; 375-5 mm COncoIor. 



16. Thorax trapezoidal, scarcely convex, the basal foveae distinctly bistriate with the 



outer stria as long or longer than the inner, hind angles distinctly carinate ; 



legs dark 17 



Thorax trapezoidal, scarcely convex, the basal fovea: unistriate or feebly bistriate 



with the outer stria very small, hind angles at most very finely carinate ; legs 



rufous or testaceous, the femora rarely darker 18 



Thorax cordate, convex, narrower at base than apex ; basal foveae bistriate . .21 



17. Form depressed; thorax slightly wider than long, as wide at base as apex; elytra 



finely striate, the striae very finely or obsoletely punctulate ; color piceous or 

 nearly black, scarcely aeneous; legs piceous. Length, .27-. 35 inch; 6.75- 

 8.75 mm planatum. 



Smaller species; strire of elytra impunctate. 



Elytra distinctly wider than the thorax ; depressed, slender, elongate ; nearly 

 black, the elytra usually more or less brownish ; thorax scarcely one-half 

 wider than long, slightly narrower at base than apex, sides arcuate in front, 

 oblique or obsoletely sinuate behind, hind angles obtuse, but not rounded? 

 elytra moderately deeply striate; legs rufo-piceous. Length, .16-. 19 inch; 

 4-4.75 ""I" simplex. 



