574 TRANSACTIONS OF THE 



This has been supposed to be the same as the fuscipes Grav., 

 but it is much larger, with pale feet, &c. 



[The name being preoccupied was changed by Erichson to S. 

 Jiav icorn is . — Lec .] 



2. S. COLON. — Black ; elytra with a rufous dot ; feet pale be- 

 neath. 



Inhabits Indiana. 



Body black, with large, dense, not very profound punctures ; 

 elytra with the punctures towards the suture longitudinally con- 

 fluent ; a sublunate or triangular, dull rufous spot rather behind 

 the middle of each elytrum; tergum with the punctures not 

 smaller at the posterior margins of the segments ; feet dirty yel- 

 lowish ; thighs blackish above. 



Length over three-twentieths of an inch. 



Much like S. higuttatus Linn., but is much smaller, and the 

 spot of the elytra is placed rather more outward and backward^ 

 and is more triangular and emarginate before. 



3. S. STYGicus. — Grayish black, immaculate. 

 Inhabits Missouri. 



Body black, with a slight tint of gray ; punctures dense, with 

 short, prostrate hairs ) head obtusely indented each side between 

 the eyes ; [459] thorax broadest a little before the middle; ely- 

 tra, region of the scutel indented ; tergum of a more unmixed 

 black than the anterior part of the body ; feet immaculate. 



Length nearly three-twentieths of an inch. 



Resembles hijifhalmus Sch., but may be distinguished by the 

 more obvious indentations of the head. 



4. S. FEMORATUS. — Grayish black ; thighs rufous. 

 Inhabits Pennsylvania. 



Body black with a slight tinge of gray ; punctures dense, with 

 short, prostrate hairs; head obtusely indented each side between 

 the eyes ; thorax broadest rather before the middle, contracted 

 behind ; a slight appearance of indentation behind the middle ; 

 elytra, region of the scutel a little indented ; tergum of a more 

 i\nmixed black than the other part of the body ; anterior thighs 

 rufous, black at the knee ; posterior thighs obscure rufous. 



Length less than three-twentieths of an inch. 



[Vol. IV. 



