222 THE COLOUKS OF ANIMALS 



inspires great dread (Poulton, * Proc. Zool. Soc' 

 March 1887). 



5. The latter cases naturally lead to those of 

 true Mimicry, in which a group of animals in the 

 same habitat, characterised by a certain type of colour 

 and pattern, are in part specially protected to an 

 eminent degree (the mimicked), and in part entirely 

 without the special protection (the mimickers), so that 

 the latter live entirely upon the reputation of the 

 former. Discovered by Bates in Tropical America, 

 {loc. cit. 1862), then by Wallace in Tropical Asia and 

 Malaya {loc. cit. 1866), and by Trimen in South Africa 

 {loc, cit. 1870). 



Cases to which the term Mimicry is best applied 



The term Protective Mimicry is best appHed to the 

 deceptive appearance of the unprotected forms in the 

 last class only. Instances of such true Mimicry, in 

 which the resemblance deceptively suggests the pre- 

 sence of some positively unpleasant quality, are so 

 common and striking that we need some name for 

 them ; and it is in every way best to retain the 

 historic term. An additional advantage is that the 

 word Mimicry implies the deception and unreality 

 which is so obvious in the last class of cases de- 

 scribed above. For this reason it is best to include 

 all the other classes and the protected forms in the 

 fifth class, under Warning Colours j for their object 



