SYNONYM. 



Blaps obscura. Nobis. Journ. Acad. Nat. Sci- 

 ences, vol. iii. p. 259. 



DESCRIPTION. 



This species resembles the preceding, but the 

 thorax is proportionally longer, the elytra are of 

 a dull reddish-brown colour, approaching to pice- 

 ous, and the lateral margin is rounded so as to 

 exhibit no edge. 



Length more than one inch. 



OBSERVATIONS. 



I obtained this insect in the country bordering 

 the river Platte, within a hundred miles of the 

 Rocky Mountains. 



The lower left figure. 



PLATE XVI. 



