Asks for information on coloration and proportions of sexes in butterflies and moths for his work on sexual selection.
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Asks for information on coloration and proportions of sexes in butterflies and moths for his work on sexual selection.
Discusses factors possibly influencing the sex of caterpillars. Is gathering information on sex ratios in insects and would welcome any cases in which males seem to outnumber females.
Asks whether the colouring of particular butterflies has any protective function, to ascertain whether the function is other than sexual.
Thanks HTS for his valuable information. Hopes to arrive at probable answer to question of proportion of males to females in the progeny of butterflies bred in domestication.
On courtship of butterflies, CD believes something more than chance is involved in determining which male is successful.