INHABITING NORTH AMERICA. 48 



bliiig a suture, area of the basal lines indented, each witli 

 two shorter oblique lines, lateial edge slightly cur\ed, not 

 perceptibly excurved near the base, basal angles rounded, 

 base much wider tlian the petiole. 



Eliitra, striiL' not very deeply impressed, distinctly punc- 

 tured. al)l)reviated stria* near the scutel, ol)solete, inter- 

 stitial lines depressed, third one with two distant obsolete 

 punctures behind tlic middle ; u'hii(s none. 



Pectus in some lights slightly tinged with green ; tarsi 

 piceous. 



Resembles tarfariciis, but is distinguished by the thoracic 

 hind angles beinu; less acute and the elytral stri.T punc- 

 tured ; from unicolor it is at once distiuKuished by the less 

 rounded form of the thorax and its less contracted base ; 

 from sttjgicus, to which by form it is more closely allied, it 

 may be readily separated, by the punctured stria?, ^'c. 



Found on Mr. 11. Haines's farm, Germantown. 



It belongs to the genus Ptcrosiichus of Bonelli. 



11. F. *pJnci(Ja blackish, glabrous; thorax transversely sub- 

 orbicular, margined ; elytra with acute impunctured striie. 

 Length seven-twentieths of an inch. 



Carabus pellalus. Melsh. Catal. 



Head purplc-l)lack slightly tinged with green ; antemm black- 

 ish, rufous at base ; ;w//;i rufous or piceous. 



Thorax a little narrower than the elytra, transversely sul)- 

 orI)icular, blackish, slightly tin!2;ed with green; mari:;in 

 depressed, edge a little recurved, particularly at llie hind 

 angles, which are not excurved ; dorsal line and anterior 

 transverse line impressed, basal liius almost oljsolete in 

 the concavitv of the lateral base, which is a little rugous. 



Elytra l)lackis'h with an obsolete purplisli tint; striie not 

 profound, acute, impuncluretl ; interstitial lines very 

 slightly convex. 



» 9 



