AMERICAN PHILOSOPHICAL SOCIETY. 625 



under frontal elevations ; second joint more robust than the third, 

 and equally long ; fourth joint rather longer than the third ; re- 

 maining joints obconic, subequal, the last a little longer : palpi, 

 terminal joint oval : thorax transverse quadrate, with punctures 

 like those of the head, but not much confluent; anterior angles 

 rounded ; lateral edges nearly parallel, very slightly contracted 

 towards the posterior angles, which are nearly rectangular, a little 

 acute, not continued backward beyond the line of the base : ely- 

 tra with punctured striae and minutely punctured interstitial 

 lines : pectus with less crowded punctures than the thorax : [187] 

 middle segment very broad ; no groove : feet, like all beneath, 

 dark pieeous : tarsi a little paler. 



Length over one-fourth of an inch. 



This species is not perhaps in all its characters perfectly coin- 

 cident with those of the genus, particularly in the remote origin 

 of the antennae ; but the form of the praesternum and the great 

 inflection of the head agree very well. 



[Unknown to me. — Lec] 



5. E. ERONTOSUS. — Antennas submoniliform ; thorax indented 

 each side of the middle. 



Inhabits Indiana. 



Body blackish pieeous, with short yellowish hair, punctured : 

 front longitudinally indented: antennae ferruginous, serrato- 

 moniliform ; basal joint arcuated, obliquely truncated at tip; 

 second joint arcuated at base : thorax with a longitudinal im- 

 pressed line, and an indentation each side of the middle ; poste- 

 rior angles prominent : elytra, striae not deeply impressed : feet 

 pieeous. 



Length one-fifth of an inch. 



The very short and submoniliform joints of the antennae, as 

 well as the general form of the body, give to this species a re- 

 semblance to the monilicornis Mannerh., but the thoracic inden- 

 tations, &c., distinguish it. 



[Belongs to Ematliion, and was afterwards described by me as 

 Epiphanis canalicvlatus. — Lec] 



6. E. RUFICORNIS S. (Melasis rujicornis, Journ. Acad. N. S. 

 iii. p. 165.) — This species having a very small spine, and slight 

 indentation instead of a recipient cavity, may perhaps be placed 

 1836.] ' 40 



