OP PHILADELPHIA. 267 



beneatli black : feet [41] piceous-black : anterior tarsi quadri- 

 dentate, penultimate tooth largest, and two or three smaller ones 

 at base. 



Length rather more than three-twentieths of an inch. 



Var. a. Cupreous dull. 



Length less than three-twentieths of an inch. 



Inhabits Missouri. 



Very closely allied to 4:-striatus Payk. of Europe, but the im- 

 punctured space of the thorax is much smaller, and that of the 

 elytra is shorter, transversely oval. Not uncommon. It occurs 

 numerously on the sea beach under Fuci, and other decaying 

 vegetable and animal substances. I obtained a specimen also in 

 East Florida. 



13. H. MANCUS. — Thoracic punctures smaller on the disk ; a 

 common space on the elytra, impunctured ; dorsal strije all ab- 

 breviated ; head without impressed lines. 



Body black : head punctured, compressed before and destitute 

 of rugae : thorax densely punctured ; punctures smaller on the 

 disk, and particularly behind the middle : elytra densely punc- 

 tured, transverse common space near the base, and humerus im- 

 punctured ; marginal stria entire ; dorsal striae abbreviated rather 

 behind the middle ; fourth and sutural striae connected at base : 

 feet piceous-black : anterior tibicC not dentated, but with remote 

 short thick spines. 



Length rather less than three-twentieths of an inch. 



I obtained it in the North-west Territory during Major Long's 

 second expedition. It resembles the [42] preceding, but the 

 abbreviated first dorsal stria, and the anterior tarsi, amply dis- 

 tinguish it. 



14. H. PALMATUS. — Thorax, excepting on the posterior mar- 

 gin, impunctured; anterior tibiae profoundly dentated. 



Body black : head with a transverse line and longitudinal bi- 

 farious one : antennse, small joints rufous : thorax without any ap- 

 pearance of punctures, except on the narrow basal margin, where 

 they are rather large : elytra punctured on the terminal half, but 

 not exterior to the line of the third stria ; marginal stria abbre- 

 viated ; four dorsal striae abbreviated, the fourth united to the 

 1825.] 



