WICKHAISI A LIST OF COLEOPTERA. I 29 



made a few comparisons in tabular form which will show the number 

 of genera and species common to their lists. Others might be made 

 with profit, but these are sufficient to show that there is much less of a 

 North-Pacific element in certain parts of the Lake region than might 

 be supposed from a glance at bio-geographical maps, while a very large 

 percentage of forms extend south-east and south. It will be noted 

 that fewer species are common to the Bayfield list and that of Alaska 

 than to Bayfield and Europe. The lists I have used in making the 

 table are as follows. Each has approximately the number of species 

 set opposite the name. 



New Jersey, John B. Smith 2,068 



Michigan, lower pen., Henry G. Hubbard and E. A. Schwarz. 1,775 



Alaska, compiled list, John Hamilton 547 



Europe and Asia, compiled list, John Hamilton 594 



Rocky Mountains, E. A. Schwarz 659 



Canada (Ont. and Queb.), list issued by the Ent. Soc. of On- 

 tario, with additions chiefly by Harrington and Kilman. . .2,500 

 Iowa, lists of Osborn and of my own, with additions from my 

 unpublished records ' 1425 



I have selected the list of Mr. Schwarz as being the largest of any 

 of those from the Rocky Mountains, and being approximately of the 

 same extent as my Bayfield catalogue. Of course if a compiled list 

 were used which should include all the known forms from the moun- 

 tains the number common to the two places would be much increased. 



TABLE OF BEETLES. 



No claim can be made that this table shows the exact relations of 

 the fauna — the difference in size between the lists precludes even the 

 possibility — but it gives at a glance what is not quite so evident in 

 reading over the following record of the species taken at Bayfield. I 

 have marked, with an asterisk those that are not in the Hubbard and 



