BUTTERFLIES OF MONTANA. 49 



that "it seems as though Nature delights to show in how many different 

 ways the same result can be accomplished." In this case, it seems as 

 though the combination of the striking adaptations of Anosia have made 

 it second only to the Pieris rapae, or "cabbage butterfly", in numbers 

 and distribution over the earth. 



In recent times this insect has spread to Australia, and from there 

 to all the East Indies and the Philippines. It is captured in Europe 

 with increasing frequency, and will doubtless be as successful in the old 

 world as in the new. It is a harmless species and will not prove as un- 

 welcome as has the little white pest in this country. We may wish it 

 success in its efforts to colonize the East, and fear no reports of mis- 

 behavior to discredit the benefits to be derived from New World ex- 

 pansion. As a rule we have given them few plants and animals that 

 have merited their disapproval. The Phylloxera is a notable exception, 

 since it threatens the vinyards of the Old World. On the other hand 

 you can hardly name a weed or obnoxious animal in this hemisphere that 

 iias not been imported to our country. At all events the behavior of 

 Anosia will be watched in the Old World with a growing interest to see 

 if it will there develop any new and interesting traits. 



MAURICE RICKER. 

 Burlington, Iowa, September, 1905. 



