OBSERVATIONS. 



This species is readily separable from M. 

 nigriceps by its inferior size and blackish elytra 

 and antennae, and by the circumstance that the 

 black line of the thorax is continued to the 

 anterior edge. 



Count Dejean informs me the name nigri- 

 pennis is preoccupied in this genus; I have 

 therefore been compelled to change it. 



The lower middle figure. 



PLATE 48. 



