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I hear from Professor Canestrini, that it is believed by many breeders in Italy, that the female caterpillar of the silk-moth suffers more from the recent disease than the male; and Dr. Staudinger informs me that in rearing Lepidoptera more females die in the cocoon than males.
Siebold, C.T., von, on the proportion of sexes in the Apus; on the auditory apparatus of the stridulent Orthoptera. Sight, inheritance of long and short. Signal-cries of monkeys. Silk-moth, proportion of the sexes in; Ailanthus, Prof. Canestrini, on the destruction of its larvae by wasps; difference of size of the male and female cocoons of the; pairing of the.
Robinet, on the difference of size of the male and female cocoons of the silk-moth. Rodents, uterus in the; absence of secondary sexual characters in; sexual differences in the colours of. Roe, winter changes of the. Rohfs, Dr., Caucasian features in negro; fertility of mixed races in Sahara; colours of birds in Sahara; ideas of beauty amongst the Bornuans.
He remarks that in birds of the oceanic islands "not persecuted by any enemies, the reduction of their wings has probably been caused by gradual disuse." "As with other long-domesticated animals, the instincts of the silk-moth have suffered.
Certain variations can only appear at corresponding ages, for instance, peculiarities in the caterpillar, cocoon, or imago states of the silk-moth; or, again, in the horns of almost full-grown cattle. But further than this, variations which, for all that we can see, might have appeared earlier or later in life, tend to appear at a corresponding age in the offspring and parent.
Certain variations can only appear at corresponding ages, for instance, peculiarities in the caterpillar, cocoon, or imago states of the silk-moth; or, again, in the horns of almost full-grown cattle. But further than this, variations which, for all that we can see, might have appeared earlier or later in life, tend to appear at a corresponding age in the offspring and parent.
Birds when surrounded by caterpillars would probably devour the largest; and Professor Canestrini informs me that in Italy some breeders believe, though on insufficient evidence, that in the first broods of the Ailanthus silk-moth, the wasps destroy a larger number of the female than of the male caterpillars. Dr.
Certain variations can only appear at corresponding ages; for instance, peculiarities in the caterpillar, cocoon, or imago states of the silk-moth; or, again, in the full-grown horns of cattle. But variations which, for all that we can see might have appeared either earlier or later in life, likewise tend to reappear at a corresponding age in the offspring and parent.
You children, too, must beware of them; touch them not, they will give you festering wounds. There is only one creature now that the Beauty-crawlers truly fear; that is the Long-stinger Wasp. He does indeed take toll of their race, but that is the price they still must pay for their beauty. Did they not drink of the double goblet? The Great Splendid Silk-Moth or Samia Cecropia
It seemed the rarest thing in the world, but I have found out since, that it is one of our common moths, and any of you can get one, if you take the trouble. Now listen, and you shall hear of what happened long ago to a green crawler who was born to be a splendid Silk-Moth, but who spoiled it all by a bad temper.
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