Fryer also noted that the mimetic forms of P. polytes were taken as well as the non-mimetic.
In some of the orb-weaving spiders the males mimic ants, while the much larger females are non-mimetic.
Actually for P. polytes the decrease would not be so marked because the male is non-mimetic.
If this factor, which may be called X, be added to the constitution of a non-mimetic female it turns it into a mimetic.
Its advantage as compared with the non-mimetic form will be very much less.
For the present we may consider one of these factors, X, which involves the proportion of mimetic to non-mimetic forms.
On the other hand a non-mimetic female accompanied by a mimetic male is excessively rare.
A distribution of black pigment similar to that found in a model and its mimic may occur also in a non-mimetic ally of the mimic.
1630s, "having an aptitude for mimicry," from Greek mimetikos "imitative, good at imitating," from mimetos, verbal adjective of mimeisthai "to imitate." Originally of persons, attested of animals or plants from 1851. Related: Mimetical (1610s); mimetically.
mimetic mi·met·ic (mĭ-mět'ĭk, mī-)
Of or exhibiting mimicry.
Of or relating to mimesis.