PEOTECTIVE MIMICRY 225 



is, however, well known, and is not likely to mislead 

 anyone ; and in addition to its historical accuracy the 

 word is more convenient than any other, as Mr. 

 Wallace has pointed out. Thus we obtain the con- 

 venient series of words — mimic, mimicry, mimetic, 

 mimicker, mimicked, mimicking. 



Various degrees of affinity between mimicking and 

 mimicked species 



The various examples of Mimicry may be divided 

 according to the affinity of the forms which resemble 

 each other. Thus a species may mimic another closely 

 allied species, or one of a widely separated family, of a 

 distinct order, class, or even sub-kingdom. Mr. Bates 

 first explained the Mimicry of butterflies and moths, 

 so that in this case the divergence between the species, 

 although generally very great, is not nearly so large 

 as that of other examples. The former, however, in- 

 cludes some of the most striking examples known, 

 and will be first described. 



The Butterflies whicli afford models for Mimicry 



In giving some account of Mimicry among butter- 

 flies, it is first necessary to speak of the models which 

 are most generally copied in all the warmer parts of 



single naturalist. I imagine that even the American Neo-Lamarckians 

 do not follow their founder so far as to believe that the volition of an 

 animal could account for all the details of mimetic resemblance. 



