INHABITING NORTH AMERICA. 88 



Length nearly eleven-twentieths of an inch. 



Carabus carbonarius. Melsh. Calal. 



Jintennce blackish-brown, basal joints piceoiis ; palpi piccoiis 

 at the tips of the joints ; vertex with uti obsolete piceous 

 spot visil)le in a particular light. 



Thorax, dorsal line not deeply impressed ; extci ior and pos- 

 terior lateral margin depressed and somewhat rugose ; 

 basal lines not definite ; l)ase not nairowed. 



Elytra, stritt- impunctured. punctures on the marginal inter- 

 stitial line few and hardly occllate, sixth inteistitial line 

 punctured near the tip ; sternum a little haiiy from the 

 head to the tip : posfpectus somewhat hairy on the disk. 



Fenter, first segment hairy beneath. 



A very common species. — The hairs beneath are small, 

 and require the aid of the microscope to be discovered. 



15. H. *agricolus black; palpi and antennae piceous, the 

 latter paler at base ; sternum and postpectus glabrous. 



Length from nine-twentieths to one half of an inch. 



Antennw dusky piceous, basal joint light piceous; palpi pi- 

 ceous, paler at tip ; vertex with an obsolete, piceous spot, 

 visible in a particular ligl)t. 



Thorax slightly narrower at base, dorsal line distinctly but 

 not deeply impressed, lateral margins (lc|)ressed and a 

 little rugose, spaces of the basal lines deeply impressed 

 and densely punctured. 



Ehitra, strife profound, impunctured ; sixth interstitial line 

 with a single puncture. 



This species resembles the precodinc; one, but it has a 

 shorter and more robust form, and tin- thorax is somewhat 

 narrower at the base than in the middle, which is not the 

 case in carbonarius. It is also common. 



16. H. *Iiallimoriensish];\ck; elvtra reddish-brown. blarki><h 

 on the disk; feet pale testaceous. 



VOL. II. F. 



