374 



REVISION OF THE TENEBRIONIIVTC OF AMERICA, 



strongly rounded from the front to the hind angles, which are also less distinct than in 

 punctatus. 



Length .08-1.0 inch. 



Occurs in Canada and the States bordering the Great Lakes. 



In Bull. Mosc. 1868, p. 192-3, Motschulsky has indicated two species from the South- 

 ern States unknown to me. 



The following table gives the species named by him : 



Sides of thorax live; toothed. 



Thorax and elytra unequally punctured. l 1 " notatu s, Sol. 



Thorax- and elytra equally punctured. Thorat cordate, hind angles prominent, cribratus, Motsch. 

 Sides of thorax three toothed. 



Elytra gibbous, antenna! mass concolorous. gibbi pen n is, Motsch. 



PRAT/FATS, Lee. 

 Prateus, Leo,., Class. Col. N. A.., p. 238; New Species, p. 181. 



This genus has been removed from the association in which it was placed by Dr. Le- 

 conte, as on renewed examination with fine; specimens the penultimate joint of the tarsi is 

 found to resemble that of the other genera of Heterotarsini, although less distinctly lobecl. 

 It may readily be known by the sub-quadrate thorax, not denticulate ; epipleurse broad at 

 tip; body glabrous, strongly punctured. 



P. f us cuius, Leo., loc. cit. 

 Length .14 inch. 



Specimens are reported from New York and South Carolina ; it probably occurs every- 

 where in the Atlantic region, though rare. 



TRIBE. XXVI — TRACHYSCELINI. 



Mentum small, supported by a distinct gular peduncle; lignla and maxilla- exposed. 

 Anterior coxa- sub-transverse, middle: coxa 1 with distinct trochantin. Tibia- all more or 

 less dilated and fossorial. Tarsi short, spinous or setose beneath. 



This tribe is here composed of the same genera included in it by Lacordaire, their 

 partition in two tribes appearing rather unnecessary and hardly warranted by the differ- 

 ences exhibited. 



The following table will aid in distinguishing our genera ; 



Antennae slender, longer than the head. PHAXERIA. 

 Antennae very short and clavate. 



Epistoma truncate. trachtscelis. 



Epistoma deeply emarginatc. an/emja. 



