Heredity and sex . d is totally distinct from that of P. hector and ^^ In flight the latter pursue an evencourse, while the polytes form follow a lumberingup and down course. Punnett thinks these differ-ences are so distinct that they are ^^ unlikely to beconfounded by an enemy with any appreciation ofcolor or form. Moreover, in Ceylon at least, the distribution of themodel and its mimic is very different from what isexpected on the theory of mimicry. He concludes thatthe facts relative to their distribution ^are far fromlending support to the view that the pol3rmorphicfemales o
Heredity and sex . d is totally distinct from that of P. hector and ^^ In flight the latter pursue an evencourse, while the polytes form follow a lumberingup and down course. Punnett thinks these differ-ences are so distinct that they are ^^ unlikely to beconfounded by an enemy with any appreciation ofcolor or form. Moreover, in Ceylon at least, the distribution of themodel and its mimic is very different from what isexpected on the theory of mimicry. He concludes thatthe facts relative to their distribution ^are far fromlending support to the view that the pol3rmorphicfemales of P. polytes owe their origin to natural selec- 128 HEREDITY AND SEX tion, in the way that the upholders of the theory ofmimicry would lead us to suppose. After considering the difficulties that the theory ofmimicry has to contend with, Punnett points out thatdimorphic and polymorphic species are not uncommonin butterflies, and that in many of these cases there canbe little or no question of mimicry having anything.
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectsex, bookyear1913
