LeContc.l 



BAKIXI. 291 



but not concave in front of them. The head is nearl}' smoo:h, the beak 

 coareely punctured, short and curved; the club of the antenmie is round, 

 with fii-st joint shining, Protliorax ample, rounded on the sides, more 

 suddenly narrowed and feebly constricted in front; punctures of usual siz.e, 

 smooth dorsal line distinct. Elytra very litle wider than prothorax, stria; 

 very deep, interspaces elevated, flat, each wi h a row of strong punctures, 

 which are approximate and furnished with very small white hairs, more 

 obvious than in any of the following species; they are somewhat confused 

 on the third interspace. 



2. B. umbilicata (Lee), Pr. Ac. Nat. Sc Phil, 1868, 363, {Baridms). 

 Two specimens, Pennsylvania. This species resembles the next in every 



respect except that the protliorax is comparatively larger, and the humeral 

 callus of the elytra less prominent. The head is si)arsely, the beak stronglj-^ 

 punctured, the club of the antennoe nearly round, with the first joint shi- 

 ning. Prothorax narrowed in front from the base, and scarcely rounded 

 for two-thirds the length, then suddenly rounded and constricted near the 

 tip; punctures unusually large, umbilicated. Elytra a little wider than 

 prothorax at base, striiE very deep, interspaces narrow, elevated, flat, each 

 with a row of strong not approximate punctures. Prosternum very narrow 

 between the coxae, broadl}" concave and coarsely punctured in front of 

 them. Beneath coarsely punctured, finely si)arsely pubescent. Length 

 o mm.; ,20 inch. 



3. B. striata (Say), Cure, 17; ed. Lee. i, 281; Lee. Pr. Ac. 1868, 362. 

 Michigan, Illinois, Kansas, Arizona. This is one of our largest species 



and is easily recognized by the comparatively smaller prothorax, and more 

 prominent humeral callus. The prosternum is very narrow between the 

 coxae, flat and coarsely punctured in front of them. The antennal club is 

 nearly round and the first joint is shining. Length 5.5-6.5 mm.; .22-26 

 inch. 



4. B. subovalis (Lee), Pr. Ac. Nat. Sc. Phil, 1868, 363, {BarhUm). 

 One specimen; Wisconsin. A rather large species of oval form, and 



shining black color. Head very convex, sparsely punctulate; beak a little 

 longer and less stout than in the following eight species, much curvetl, 

 constricted at base, strongly punctured- Prothorax narrowed from the 

 base fonvards, then more suddenly rounded and narrowed to the tip, whic'.i 

 is slightly constricted at the sides ; punctures strong, but not very coarse, 

 more dense at the sides, doi-sal line dis inc". Elytra scarcely wider than 

 the prothorax, humeri rounded, not prominent; strite deep, intei-spac?s flat, 

 finely but distinctly punctulate, punctures of the third interspace confused, 

 of the others in irregular rows. Prosternum uniformly coarsel}^ punctured, 

 longitudinally concave or broadly sulcate in front; front coxae moderately 

 distant. Antennae with club nearly round and first joint shining. L jngtii 

 6 mm.; .24 inch. 



5. B. transversa (Say), Cure. 18, (Barirlius); ed. Lcc. i, 282; Lcc, 

 Pr. Ac. Nat. Sc. Phil. 1868, 362; B. quadratus Lee, ibid, 301, 



