AMERICAN PniLOSOPniCAL SOCIETY. 573 



honey-yellow ; thorax somewhat smaller than the head, a little 

 obovatc, obscurely rufouH behind; elytra (tbscure rufous at tip; 

 tergum, posterior margins of the segments dull rufous j feet pale 

 honey -yellow. 



Length nearly three-twentieths of an inch. 



Resembles the preceding in form, and in the obtuse anterior 

 termination of the head. 



[Probably the same with Simhts j>roluus Kr. — Lkc] 



RUGILUS Leach. 



R. DENTATUs. — Rlack ; feet pale; elytra dull rufous at tip. 



Inhabits United States. 



Body piceous black; head longitudinally wrinkled; antennre 

 and palpi piceous ; labrum large, bidentate in the middle, pice- 

 oas, rounded each side ; thorax smaller than the head, longi- 

 tudinally wrinkled, convex, with a longitudinal, glabrous line j 

 elytra with numerous, minute, hairy punctures; a subsutural im- 

 pressed line; posterior margin dull [ 458] rufous, or yellowish^ 

 feet pale yellowi.sh. 



Length over three-twentieths of an inch. 



Var. a. Posterior margin nearly black towards the suture ; 

 glabrous thoracic line almost obsolete. 



iNIuch smaller than Ji. orhlcuhitus Payk., and the wrinkles of 

 the head and thorax are larger and more obvious. 



[Belongs to Stilicus. — Lec] 



STENUS Latr. 



1. S. GENICULATUS. — Black; antennae and feet whitish. 



Inhabits United States. 



Body black, with a very slight cinereous tinge ; deeply punc- 

 tured ; head with a wide, but not very deep indentation each 

 side of the middle; profoundly punctured; antennae whitish; 

 anterior part of the head with short whitish hairs; thorax punc- 

 tured like the head ; elytra also with profound punctures ; tergum 

 a deeper black than the elytra; segments with large punctures 

 at base and small ones towards the tip ; feet yellowish-white ; 

 posterior knees blackish. 



Length less than one-fifth of an inch. 

 1834.] 



