SUMMARY AND CLASSIFICATION 337 



Colours, and deceptively suggest something un- 

 pleasant to an enemy or attractive to prey. While 

 Mimetic and Alluring Colours are therefore correctly 

 classed in the same group with other forms of Eesem- 

 blance, the terms suggested convey the relationship to 

 Warning or Sematic Colours. 



The second head (Sematic Colours) includes Warn- 

 ing Colours and Eecognition Markings: the former 

 warn an enemy off, and are therefore called Apose- 

 matic ; the latter assist an individual of the same 

 species, and are termed Episematic. 



The third head includes the colours displayed in 

 courtship, which are therefore called Epigamic. 



The vertical arrangement in the table indicates 

 the three chief divisions under which the various 

 uses of colour may be grouped, together with the sub- 

 division of the first into its two main classes. But 

 the horizontal arrangement is also of importance ; for 

 Pseudaposematic colours (I. B 1) are special and highly 

 remarkable instances of Procryptio colours (I. A 1), 

 and deceptively resemble Aposematic colours (II. 1). 

 Similarly, Pseudepisematic colours (I. B 2) are special 

 instances of Anticryptic colours (I. A 2), and may 

 depend for success upon the deceptive resemblance to 

 Episematic colours (II. 2). 



