gin, extending on the edge to the base and tip ; 

 third and fourth segments each with a large dull 

 coppery triangular spot on each side at base, ap- 

 proaching closely towards each other on the 

 basal margin, and extending on the lateral edge 

 nearly to the tip ; an obsolete, longitudinal, cen- 

 tral, dull coppery line, widely outspread on the 

 posterior margin, so as to attain to the posterior 

 angles : venter purplish or dusky, highly po- 

 lished. 



OBSERVATIONS. 



Of this also I have seen but two specimens, 

 both of which are males ; one was taken near 

 Philadelphia, and the other at Chinquoteage, 

 Virginia. 



The lower figure of the plate. 



PLATE XI. 



