86 ONE-SIDEDNESS. 



the " Verhandlungen des zoologisch-botanischen Gesellschaft 

 in Wien," 1872, are so appropriate to the subject under dis- 

 cussion, that I cannot resist quoting them here, though by 

 no means endorsing all his assertions, some of which appear 

 to me too sweeping, and would probably be modified were he 

 to spend a few months in the United States. 



" The more we come to know the North American Lepi- 

 *' doptera, the more species do we find which come very 

 " close to the European species, or, indeed, cannot be dis- 

 " tinguished from them. If, therefore, we now include 

 " (as indeed we are quite right to do) in the European 

 " Lepidopterous Fauna, the species from all northern Asia, 

 " Asia Minor, and the north coast of Africa, then ought we 

 " also to extend our geographical limits to include not merely 

 " Iceland, Greenland, and Labrador (of which the products 

 " have long been considered as belonging to the European 

 " Fauna), but also Canada and a large portion of the United 

 " States. It is, indeed, somewhat surprising, that this has 

 " not already been done, as the insects of Siberia have more 

 " difiiculty in reaching Europe than those of America. The 

 " latter (excepting the species from the extreme north), were 

 " probably only omitted by Dr. Staudinger from his excel- 

 " lent Catalogue because he had not had sufficient opportuui- 

 " ties of studying them and their literature. 



" One is probably not wronging the generality of Ameri- 

 " can Lepidopterists in asserting that they seem too little 

 " anxious to make the Entomologists of Europe acquainted 

 " with their Fauna, and to learn, on the other hand, the 

 " Fauna of Europe, the consequence being that they can- 

 " not thoroughly become acquainted with their own in- 

 " sects, and that they give new names to species which are 

 " identical with those of Europe, and thereby, if of econo- 



