AMERICAN PHILOSOPHICAL SOCIETY. 455 



coxae of the two anterior pairs of feet ferruginous brown ; elytra 

 striate ; striae impunctured ; margin opake, with numerous 

 minute punctures and a few larger ones ; venter black, rarely 

 piceous. 



The largest species of the genus in this country ; when irri- 

 tated it diffuses a very pungent vinegar-like odor. If the species 

 described by Fabricius is in reality apterous, as he supposes it to 

 be, this insect is a distinct species, and the name given by Mr. 

 Melsheimer will be retained. It is very common. 



[Referred to Sdenophorus and Pangus, which, however, are 

 more properly united with Harpalus. — Lec] 



2. H. BICOLOR ? — Black; beneath deep piceous : antennae, 

 palpi, and feet testaceous. 



Length, male less, female more than three-fifths of an inch. [27] 



Winged ; body above black, beneath ferruginous. Inhabits North 

 America. Mus. D. Lewin. Fabr. S. Eleut. 1, p. 195. 



Resembles C.rufieornis; head black; thorax almost square, with a 

 longitudinal line impressed in the middle, and two impressions posterior; 

 elytra black, striated ; body beneath brown, more or less clear. Cab. of 

 M. Bosc. Oliv. 3, p. 57, tab. 11, f 92, b. Length seven-tenths of an 

 inch. 



Carabus ostraceicornis Melsh. Catal. 



Head black ; antennae and mouth rufo-testaceous ; gula pice- 

 ous ; thorax glabrous on the disk ; a dorsal impressed line ; area 

 of the hind angles depressed and eonfluently punctured, posterior 

 angles rounded ; elytra striate ; strias impunctured, margin with 

 numerous punctures ; pectus and postpectus piceous-black, pice- 

 ous on the disk, with obsolete punctures ; feet testaceous, pale ; 

 venter piceous-black ; tail paler. 



A very common insect under stones, &c. It does not corres- 

 pond with the description of hicolor of authors, but I do not 

 know what other insect they allude to. Mr. 3Iarsham describes 

 this insect as an inhabitant of Great Britain. 



[I consider this as H. pensylvanicus Degeer ; it also appears to 

 be n. faunus Dej. — Leg.] 



3. H. ERRATicus. — Reddish-brown, beneath testaceous ; elytra 

 fuscous ; thorax a little contracted at base. 



Length three-fifths of an inch nearly. 

 1823.] 



