182 ENTOMOLOGICAL SOCIETY 
ANNUAL ADDRESS OF THE PRESIDENT. 
ON THE COLEOPTERA COMMON TO NORTH AMERICA AND OTHER 
COUNTRIES. 
BY E. A. SCHWARZ. 
As the subject of my address I beg leave to present a partial 
classification of those numerous species of Coleoptera, which are 
more or less widely distributed over the great faimal regions of 
the globe. As a basis for such classification I have attempted 
to compile lists of those species of the Nearctic fauna which 
occur also in other continents. These lists, if complete, ought to 
include not only a comparison of our own fauna with the other 
faunal regions of the New World and with that of the boreal and 
temperate zones of the Old World, but also with the Ethiopian, 
the Oriental, and the Polynesian faunas. The connection be- 
tween our awn and the last-named faunal regions is, however, 
so small as to be hardly worth while to be taken into considera- 
tion here, since it is reduced to a certain class of species which 
are common to all faunal regions of the world, viz., the Cosmo- 
politan species, and to a very few other species which, though 
widely distributed within the tropical or semi-tropical zones, have 
not acquired the faculty of spreading into the temperate zone. 
A compilation of the list of species common to North and 
South America proved to be beyond my ability, owing to various 
circumstances. There is not a single good collection of South 
American Coleoptera in the United States which would serve as 
base for comparison ; there is an almost complete absence of 
catalogues of South American Coleoptera, and the literature is 
enormously scattered and, to a large proportion, inaccessible to 
me. Thus my list has remained a mere fragment. 
There is but little difficulty in compiling a list of the species 
common to North America and the Palasarctic fauna. Careful 
comparisons of most species belonging to both faunas have been 
made by various authors ; there is no want of catalogues, and 
even partial lists of the species common to both regions have been 
published. Among our own authors, Dr. LeConte was very fond 
of referring to this subject in his writings and gave on several 
