Amauris and Danaida furnish dominant models, as do species of 
Acrea, and the Geometrid Moth, Aletis. I have chosen the Plan- 
ema-centred Combinations in the belief that they shed more light 
than any of the others on various aspects of mimicry : on the 
relation of mimicry to sex, on polymorphism in mimicry, on 
secondary mimicry or the resemblance to a mimic rather than to 
its primary model, on the Batesian and Müllerian hypotheses. 
Apart from these interesting but elaborate questions, the evidence 
here brought forward will perhaps satisfy those who are still doubt- 
ful, that the models and mimics tabulated in the present paper do 
habitually fly together on the same days and in the same forests. 
I now propose to set forth in three tables the specimens of the 
three Planema-centred Combinations, taken between May 23rd 
and August 31st, 1909 : 
