obtained it near the Susquehanna river. Two 

 other specimens have since come into my 

 possession. 



This species was first described by Knoch, 

 under the name of unicolor; supposing it to be 

 the same with that of Fabricius, and on his 

 authority, I retained the appellation in my 

 " Descriptions of the Carabici and Hydrocan- 

 thari ;" but after the publication of that paper, 

 being induced to examine the descriptions of 

 Fabricius, and Olivier, I perceived at once that 

 the unicolor of Knoch, was not that of those 

 authors. Under this impression, I sent the 

 insect to Count Dejean, under a new name, 

 which he adopted. 



I have been thus particular in this statement, 

 in order to record an opinion which I have 

 always entertained, and which every observation 

 tends to confirm. That it is of no consequence 

 whatever, who gives a new name, either in a 

 catalogue or letter, or attached to the insect in 

 his cabinet, or elsewhere; but as it is the 

 describer that incurs the responsibility, his 

 name only ought to be quoted with that of 

 the insect, or other object described by subse- 

 quent naturalists. 



PLATE 45. 



