336 SUMMARY. 



SUMMARY. 



North America contains 716 species. 



South America contains ...... 507 " 



Total 1223 " 



Deducting 53 species found in both North and South America, the whole con- 

 tinent of America contains 1170 species; of which 436 are new to science. 



The actual number of "species not examined," 220 for North America and 

 128 for South America (total 348), is considerably less in reality; the species 

 entirely unknown to me are 83 for North America and 29 for South America 

 (total 112), mostly described by Say, Asa Fitch, and Pictet. 



