3iS 
COLOUR IN NATURE 
CHAP. 
entomologist to judge, the following is an impartial 
statement of the case :—The genus Papilio in India 
and the Malay shows a marked tendency to develop 
varieties (species) of definitely limited geographical 
distribution, so that, for example, a variety (species) 
occurring in India is replaced by a closely related 
variety (species) in the Malay. Further, in many 
cases there occurs a marked polymorphism in the 
females, which expresses itself in the fact that they may 
resemble the males or may display large spatulate 
appendices to their hind wings which are entirely absent 
from the males, as well as other peculiar characters. 
This, however, occurs as a specific character in both 
males and females of other series of Papiliones , the 
result being that some of the females of one series 
may resemble (mimic) both sexes of other series. 
The following table will perhaps make this plain, the 
brackets indicate that the forms are “ geographical 
species ” (replacing species), the habitat being indi¬ 
cated at the left :— 
Series A. 
Series B. 
r P. Memnon. 
Polymorphic. 
India and P. Androgeos. 
Sumatra Polymorphic. 
One female “ mimics 
f P. Coon. 
(Sexes similar). 
One female “mimics 
P. Douhledayi. 
(Sexes similar). 
India 
Malay 
Series C. 
Series D. 
' P. Theseus. 
Polymorphic. 
P. Pammon. 
Polymorphic. 
One female “ mimics ” 
One female “mimics 
Another ,, ,, 
f P. Hector. 
I (Sexes similar). 
J 
I f P. Diphilus. 
I I P. Antiphus. 
'•(Sexes similar). 
Mr. Wallace explained the case as a typical one of 
