N0.127S. BEETLES OF THE mSTIilCT OF COLUMBIA— IJLKE. 5 



As this manuscript was prepared nearly four years ago, papers on 

 North American Coleoptera that have been published since have not 

 been taken into consideration. Some of the changes in the nomencla- 

 ture established in these papers have been inserted, but many others 

 could not be attended to. 



Everyone familiar with the systematic study of North American 

 Coleoptera is aware that in many genera of various families we have 

 a larger or smaller number of undescribed species; the description of 

 which must by all means be left for future monographs. Such species 

 are omitted in this list; they are most numerous in the subfamily 

 Aleocharinee of the famil}^ Staphylinidaj, in the Cioida?, Cryptopha- 

 gida?, etc. 



A local faunal list acquires interest and importance onlv when 

 compared with lists of adjacent regions. As to Coleoptera we have 

 the list by the late Dr. John Hamilton^ on the Coleopetra of south- 

 western Pennsylvania, and that of Dr. J. B. Smith on the insects of 

 New Jersey (second edition, 1899.) Both of these lists refer to regions 

 north of the District of Columbia. Southward we have no compre- 

 hensive faunal lists of Virginia, North Carolina, South Carolina, and 

 Georgia. The list of Coleoptera of Florida, b}' Schwarz and Hulibard " 

 is also of importance for comparison with our District fauna. 



It is very gratifying to find that some of the younger enthusiastic 

 students in the Division of Insects in the United States National 

 Museum, and the Division of Entomology in the United States Depart- 

 ment of Agriculture, such as H. S. Barber andF. C. Pratt, have taken 

 up coleopterology and already give proof of their success in studying 

 and collecting coleoptera. No doubt many additions will hereafter be 

 made to the species enumerated in this paper. 



LIST OF SPECIES. 



1 Trans. Amer. Ent. Soc.,XXII, 1895. 



Proc. Amer. Phil. Soc.XVII, 1878. 



