Pheromones Archives - Eva Varga

December 1, 2014

jhfabreJean-Henri Fabre is best known for his popularization of insect natural history. Although a reclusive amateur, with no scientific training, he was an acute observer of insect behavior. He combined his observations (most made in his own backyard) with an easy to read writing style that made his books popular.

The ten volumes of Souvenirs Entomologiques attracted only mild attention when they were first published. Fabre was 84 when the last volume appeared, and he was “discovered” soon afterwards. He was elected to numerous scientific societies, provided a government pension, and even the President of France came to visit him.


FabreJean Henri Casimir Fabre was a French entomologist born at Saint-Léons in Aveyron, France on December 22, 1823.

He earned teaching certificate at the young age of 19 and began teaching in Carpentras. He was a popular teacher, however, he is probably best known for his study of insects, and is considered by many to be the father of modern entomology.

Much of his enduring popularity is due to his marvelous teaching ability and his manner of writing about the lives of insects in biographical form. He died on October 11, 1915.

One of his most notable discoveries was in regards to insect pheromones. Pheromones are chemicals released from the body of animals and insects that are used to attract mates or relay danger.

L’Harmas, Fabre’s house at Sérignan in the Vaucluse northeast of Orange, was well screened by trees. In a series of key experiments, initially studying the Great Peacock Moth, Fabre found that a female moth could attract males over large distances, even on stormy nights.

It is smell, therefore, that guides the Moths, that gives them information at a distance“.

He deduced that the male antennae had something to so with it, noted that surrounding the female with trays of molecules like naphthalene or lavender oil did not deflect the males from their aim, and observed that males were attracted to an empty cage where the female had spent the previous evening.

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