AMERICAN PHILOSOPHICAL SOCIETY. 477 



Body black tinged with piceous, impunctured, beneatli pice- 

 ous ; antennae and palpi rufous ; thorax narrower than the elytra, 

 contracted behind, margined, margin rufous, somewhat recurved, 

 edge excurved, near the posterior angles, which are obtuse; 

 [53] elytra, strise impunctured, acute, seventh one obsolete, in- 

 terstitial lines slightly convex, third with two or three punc- 

 tures ; pectus and postpectus impunctured ; feet piceous. 



[A Platynus afterwards described as follows: Platynus hlandus 

 Germ., Anchomenus corvhms Dej., A. deplanatus Chaud., A. mar- 

 ginalis Hald. — Leg.] 



32. F. DECORA. — Head deep green; thorax rufous; elytra 

 dark cupreous. 



Length seven twentieths of an inch. 



Head deep green, purplish at base ; antennae and palpi rufous, 

 dusky at tip ; labrum and nasus purplish ; thorax pale rufous, 

 narrower than the elytra, broadest before the middle, a little con- 

 tracted behind, hind angles obtuse, dorsal line slightly impressed, 

 basal ones distinct ; elytra, disk obscure cupreous to the eighth 

 stria, margin green, interstitial lines somewhat convex, striae im- 

 punctured ; pectus pale rufous ; postpectus black slightly pur- 

 purescent, impunctured ; feet testaceous ; abdomen black, pice- 

 ous behind. 



33. F. DECENTis [decens]. — Black, depressed ; third intersti- 

 tial line tripunctate; thorax each side at base depressed and 

 punctured ; feet black. 



Length eleven-twentieths of an inch, 



Carabus gagathes Melsh. Catal. 



Body black, depressed, glabrous ; antennse piceous-black ; palpi 

 dark piceous ; thorax narrower than the elytra, slightly contract- 

 ed behind, margin somewhat depressed behind, edge recurved, 

 posterior edge very slightly excurved, posterior angles not round- 

 ed, dorsal line indented, anterior transverse line angularly and 

 deeply indented, base each side excavated and confluently punc- 

 tured. Elytra, strise with transverse, numerous, lineolar punc- 

 tures, interstitial lines convex, the third one with three remote, 

 [54] lateral punctures, of which one is obsolete and placed near 

 the base on the exterior side, one near the middle on the anterior 

 side, and one near the tip ; feet black ; tarsi piceous ; postpectus 

 1823.] 



