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or breast-plate, and is divided into three parts, the prosternum or fore 

 breast-plate ; the mesostermim or middle breast-plate ; and the metaster- 

 num or hind breast-plate. Each of these parts has a side piece called 

 the einsternum ; so that there is an episternum of the prothorax ; an 

 episternum of the mesothorax; and an episternum of the metathorax; 

 all of which are labelled in the figure. Directly behind each epister- 

 num is a smaller piece called the qnmeron. These are indicated in the 

 figure by stars ; three stars marking the epimeron of the prothorax ; 

 two stars the epimeron of the mesothorax; and one star the epimeron 

 of the metathorax. The epimeron of the mesothorax is very narrow in 

 Harpalus, and scarcely distinguishable without the aid of a lens ; but 



