a 



[21] 19. CuLiENius IMPUNCTIFRONS, ^tr&y.— [This name is preoccupied 

 by Say ; Kirby's species is probably identical with LeConte's C. hrevih' 

 bris.'] Length of body 5-5| lines. 



Smaller than C. sericeus, though like it. Head without punctures ; 

 antenna; black, with the three first joints testaceous : scutellum not acumin- 

 ate : elytra black with a shade of green ; apex of the epiplGurse or side-covers 

 and legs testaceous; coxae chestnut. In other respects. this agrees with the 

 preceding species. 



20. Chl^nius nemoralts, Sat/. — [Ent. Works, ii. 487.] 

 A pair taken in the journey from Now York to Cumberland-house. [Rare 

 in Canada.] 



[22] 21. OHL.fiNius QUADRicoLLis, Kirly. — Length of the body six 

 lines. Taken by Dr. Bigsby in Canada, 



Body hairy Hke the others, black underneath. Head and prothorax 

 bronzed-green ; mar Ubles piceous ; palpi and three first joints of the antea- 

 nae testaceous j the latter are longer than the thorax, with the 4th joint as 

 long as the 3rd ; prothorax rather square, a little narrower before, with the 

 sides curving, sculptured like the preceding species j scatellum sub-acumin- 

 ate : elytra blue-black, furrowed with deeper furrows very viisibly punctured, 

 interstices minutely punctured. 



[Placed, with a mark of interrogation, as a synonym of C. Pensylvavicus^ 

 Say, in Le Conte's List, p. 11.] 



22, Chl^nius cordicollis, Kirhy. — Length of the body 8 lines. Taken 

 in Canada by Dr. Bigsby. 



Body black. Head impunctured; palpi rufous; antennas dusky, with the 

 three first joints rufous, the third much longer than the fourth : prothorax 

 obcordate, constricted behind, deeply channelled, disk gibbous on each side 

 of the channel, centre of each gibbosity smooth, remainder of the prothorax 

 punctured ; posterior lateral impression longitudinal : elytra black with a 

 shade of green, sculptured as in the preceding species, bat the interstices of 

 the furrows are more visibly punctured : legs testaceous, thighs darker. 



[23] 23. Chl^snius emarginatus, Say. — Length of the body 6i lines. 

 Taken in the journey from New York to Cumberland-house. 



Body hairy, punctured ; black underneath. Head glossy green, with a 

 tint of copper between the eyes, and a net-work of very minute, confluent, 

 transverse wrinkles ; maxillae and palpi rufous, maxillary palpi very long ; 

 upper-lip transverse, rufo-piceous, anteriorly subemarginate ; mandibles pice- 

 ous; antennae rufjus, longer than the prothoiax, with the third joint rather 

 longer than the 4th ; prothorax dusky-green, transverse, rather narrowest at 

 the apex, very thick and minutely punctured; basilai impressions double. 



