Dic.iSg^.] LeNG <S: BkL 1 KNMiil.l.l.K. CnllOI'l. N . ]•], \ \l i i Iv^ 



Synopsis of species. 



Middle tibia' willi :i ?pur near outer tip, clypeiis with lateral lobes. 



Anterior femora dentate neai tip, paronycliiuni very elongated dentipe.s. 



Anterior tibire not dentate, thickened, paronyci.imu elongate. 

 Veitex silicate. 



Head smooth, punctured behind, vertical groove deep and 



long; entiiely rufous impres5ifrons. 



Vertex not sulcate, head and thora.x smooth. 



Verte.\ foveate, basal angle of thorax dentate, rufous 



depressed rubicunda. 



Vertex not foveate ; basal angle of thorax simple, fusco- 



rnfous ........ pallida. 



Clypeus with lateral lobes, anterior femora beneath deeply sinuate 

 near tip, paronychium elongate, front foveate. 

 Elytral striit entire, finely punclulate. 



Kiilirely rufous ....... rufa. 



Rufous with black suture ..... collaris. 



Black, legs rufo-piceus, antenniv: rufous . americana. 



Elytral stria? obliterated behind ; black, antennx rufous. 

 Thorax sub-quadrate, narrower in front ; sparsely 



punctulate, paronychium shorter or absent, 



striatopunctata. 

 Thorax ovate, elytral stricx; scarcely obliterated behiiul, cordata. 

 Clypeus rountled at sides ; anterior femora thickeneil, not sinuate 

 beneath, paronychium shorter or absent. 

 Vertex longitudinally sulcate ; rufous; thorax elongate . ferrea. 

 V^ertex not or faintly sulcate. 



Anterior tibiiv with one lateral tooth, the terminal tooth 

 rectangularly bent. 

 IJIack, elytra maculate, thorax vaguely punctate, 



paronychium slender COnvexa. 



Anterior tibia; with two lateral teeth; the terminal 

 gradually bent. 

 HIack. elytra maculate; thorax nearly smooth, 



paronychium wanting bipustulata. 



IJIack; elytra maculate; thorax punctate, 



paronychium short . postlca. 



C. dentipes DcJ. Plate IV, Fig. 7. — Black, thorax polished, 

 .smooth, legs piceoiis; elytra distinctly striate, punctured. Length, 

 .30 — .32 inch. - 7.5 — 8.5 mm. 



Habitat, N. Y., southward and westward. 



C. impressifrons Lee- Entirely rufous; head punctured 

 behind, vertc.K deei)ly grooved; elytral stria; distinct. Length. 

 .24 inch. = 6 mm. 



Habitat, Canada, X. V., N. J., Pa., Ohio, also Kans. 



