88 CONTROLLED NATURAL SELECTION 
species, but because it is coloured black like 
another species, whose flavour it has sampled ; 
indeed the first beetle may in reality be palat- 
able. Thus have been accounted for many 
cases of mimicry, and their origin, by fortuitous 
variations of palatable insects resembling un- 
palatable. 
To describe a colour as a warning colour, 
is to describe it from the point of view of an 
enemy ; it is a description of purpose rather 
than of effect. The following table, given in 
Professor Poulton’s book, is a classification of 
colour for the most part from this point of 
view. Attracting colour has not been intro- 
duced: it would fall under B after some 
modification. The terminologies here used 
have been placed in their appropriate places 
in the table given on p. 36. 
A, Apatetic Colours=colours resembling some part of 
environment. 
(1) Cryptic (a) procryptic = protective resemblance. 
(d) anticryptic = aggressive resemblance. 
(2) Pseudo-sematic = false signalling. 
(a) pseudo-sematic = protective mimicry. 
(0) pseudo-episematic = aggressive mimi- 
ery or alluring. 
B. Sematic Colours = signalling colours. 
(1) Aposematic = warning. 
(2) Episematic = recognition marks, 
[(3) t =attracting colour.] 
