March, 1912.] PROCEEDINGS OF THE SOCIETY. 75 



to the fact that the forms of the female had arisen by mutation and acci- 

 dentally or in some other way resembled the forms apparently mimicked. 



Mr. Pollard questioned whether the enemies of the butterflies could dis- 

 tinguish the character of the flight and noted that there were many undoubt- 

 edly good examples of mimicry. 



Mr. Leng inquired whether or not the larVse of the models and mimics 

 resembled each other. 



Mr. Hallinan noted the fact that in the tropics many butterflies and moths 

 closely resembled each other both in flight and habits. 



Mr. Schaeffer stated that in Arizona he had found it difficult to distin- 

 guish between certain species of Lampyridse and moths of the genus Ly- 

 comorpha. 



Society adjourned. 



E. L. DiCKERSON', 



Secretary. 



