AMEUICAN PIIILOSOI'IIICAL SOCIETY. 487 



S. C. NKMORALIS. — Cuprcous-n^rccii, beneath black ; elytra 

 purple-black; antcntine ami feet rufous; head iuipnnctured ; tho- 

 rax at base narrower than the elytra. 



Length half an inch. 



Carahus amethystinua Melsli. Catal. 



IJody with very short, nuuierous hairs, cupreou.s-jrreen ; elytra 

 dark purple, beneath black ; head glabrous, polished ; lahrum 

 ferruginous, truncate ; antennae and palpi rufous ; thora.x broadest 

 in the middle, jiostorior lateral edge slightly excurved, base nar- 

 rower than the elytra, punctures numerous, small, impressed 

 lines distinct; scutel not darker than the elytra; elytra deep 

 purple, til)scure, with numerous minute punctures and punctured 

 striae, interstitial lines depressed ; sternum slightly tinged with 

 green ; feet rufous. 



Is at once distinguished from frstinis by the impressed front, 

 and from inij)iinrfi/ron!i by having the thorax narrowed behind. 

 Common in Pennsylvania. I found it also in Georgia and Flo- 

 rida. 



3. C. SOLITARIUS. — Green, polished, beneath piceous ; feet 

 pale ; head impunctured ; thorax at base narrower than the ely- 

 tra, subcordate. 



Length nearly eleven-twentieths of an inch. 



Body green, polished, beneath piceous-black ; head impunc- 

 tured ; antennae brownish, paler at base ; labrum truncate, pale 

 ferruginous ; thorax dilated before the middle, contracted be- 

 hind, dorsal lines and base punctured, disk each side impunc- 

 tured ; scutel purplish ; elytra green, polished, stria) indented, 

 obtu.sc, punctures distinct, intervals not equal to their length 

 and becoming obsolete towards the tip, interstitial lines convex, 

 with very distinct punctures; [66] feet pale, joints somewhat 

 darker ; tail pale. 



Differs from all the preceding ones in having the lines intor- 

 vening between the stria) convex. It was taken on the Missouri 

 by Mr. Nuttdll. 



10. 0. PENSYLVANlcus. — Grccn, polished, })eneath piceous; 

 elytra blackish ; feet rufous ; head impunctured ; interstitial 

 lines of the elytra somewhat convex. 



Length not (juite half an inch. 

 1823.] 



