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Odonestis potatoria, sexual difference of colour in. Odour, correlation of, with colour of skin; of moths; emitted by snakes in the breeding season; of mammals. Oecanthus nivalis, difference of colour in the sexes of. Oecanthus pellucidus. Ogle, Dr. W., relation between colour and power of smell. Oidemia. Oliver, on sounds produced by Pimelia striata. Omaloplia brunnea, stridulation of.
For instance, I observe in my son's cabinet that the males are darker than the females in the Lasiocampa quercus, Odonestis potatoria, Hypogymna dispar, Dasychira pudibunda, and Cycnia mendica. In this latter species the difference in colour between the two sexes is strongly marked; and Mr.
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