204 CALIFORNIA ACADEMY OF SCIENCES. 



The following table shows by families the number of 

 genera and species mentioned in the preceding pages, 

 both for Southern California and for the entire State. 

 Between these is introduced for comparative purposes 

 similar data from Dr. Hamilton's List of the Coleoptera 

 of Southwestern Pennsylvania. The number of spe- 

 cies named by Dr. Hamilton being substantially equal 

 to the number here recorded from Southern California, 

 a comparison of figures will give a very good idea of 

 the relative abundance of the various families on the 

 Atlantic and Pacific slopes. A few numbers in the 

 Pennsylvania list are marked with an asterisk (*) to 

 indicate that in these cases the record is incomplete: 



