A KEVISION OF THE NORTH AMERICAN SPECIES OF 

 BUPRESTID BEETLES BELONGING TO THE GENUS 

 AGRILUS 



By W. S. Fisher 



Of the Bureau of Entomology, United, States Department of Agriculture 



INTRODUCTION 



The present paper is the result of several years' study of the 

 genus Ag?*ilus, and comprises all of the species found in the main- 

 land of America north of Mexico. The task of revising the genus was 

 undertaken because the group is an important one economically, and 

 at the same time has been badly confused. Owing to the extreme 

 variability of the species, erroneous identifications have been many, 

 and the published distribution and host records are in a considerable 

 part incorrect. Fortunately, the collection of the United States Na- 

 tional Museum, upon which this work is largely based, is rich in 

 reared series of many of the species. This has helped immeasurably 

 in the selection of characters which will be useful for the separation 

 of the species. The types have been examined of all the described 

 species except those which have been lost or are deposited in 

 European collections. 



One hundred and seventeen species and 8 subspecies or varieties 

 are treated in this paper, of which 27 species and 2 subspecies are 

 described as new. One fossil species and 5 other species which are 

 either unknown or belong to other genera are omitted from the key, 

 but these species are briefly treated at the end of the paper. 



ACKNOWLEDGMENTS 



The writer wishes to express his acknowledgments to those who in 

 some special way have given aid in the preparation of this paper. 

 The writer is especially indebted to H. C. Fall, Tyngsboro, Mass.; 

 E. T. Cresson, jr., of the Philadelphia Academy of Natural Science; 

 Nathan Banks, of the Museum of Comparative Zoology ; and George 

 P. Engelhardt and Charles Schaeffer, of the Brooklyn Institute of 

 Arts and Sciences, for permission to examine types in their custody. 

 For the loan of types or other material the writer is indebted to the 



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