NOTICE. 



The present catalogue was commenced in 1861, and the portion 

 now issued was, in great part, printed as early as June, 1862. 

 The official duties of the author have since left him but little time 

 for scientific research ; but believing that the catalogue, even in 

 its present incomplete condition, will be of service to students, he 

 has considered it proper not to retard its appearance any longer. 

 He trusts that at a future period he may be able to complete the 

 work, and in the meantime, invites contributions from all those 

 who have it in their power to aid him in his object of making a 

 personal examination of all the accessible species of Coleoptera 

 found within the limits of the United States, for the purpose of 

 presenting an authentic synonymical catalogue. 



The following marks are used in the catalogue : after a 



species indicates that it is unknown to the author, who is therefore 

 not responsible for its value as a distinct species: || signifies that 

 the name has been previously employed for another species: J de- 

 notes erroneous determinations : Greek letters are employed to 

 distinguish forms which are considered as races of the preceding 

 species. 



J01IX L. LECONTE. 

 Jan., 1863. 



