The Wonders of Instinct: Chapters in the Psychology of InsectsFabre, Jean-Henri
Science
The Wonders of Instinct: Chapters in the Psychology of Insects
Fabre, Jean-Henri
Insects; Instinct
Can he be unscathed, in spite of the sort of kiss which I saw given to
him just now? You would be ready to say so, judging by the furious way
in which he kicks in my fingers. Nevertheless, when put on the ground,
he walks awkwardly, he seems reluctant to hop. Perhaps it is a
temporary trouble, caused by his terrible excitement in the web. It
looks as though it would soon pass.
I lodge my Locusts in cages, with a lettuce-leaf to console them for
their trials; but they will not be comforted. A day elapses, followed
by a second. Not one of them touches the leaf of salad; their appetite
has disappeared. Their movements become more uncertain, as though
hampered by irresistible torpor. On the second day they are dead,
everyone irrecoverably dead.
The Epeira, therefore, does not incontinently kill her prey with her
delicate bite; she poisons it so as to produce a gradual weakness,
which gives the blood-sucker ample time to drain her victim, without
the least risk, before the rigor mortis stops the flow of moisture.
The meal lasts quite twenty-four hours, if the joint be large; and to
the very end the butchered insect retains a remnant of life, a
favourable condition for the exhausting of the juices. Once again, we
see a skilful method of slaughter, very different from the tactics in
use among the expert paralysers or slayers. Here there is no display of
anatomical science. Unacquainted with the patient's structure, the
Spider stabs at random. The virulence of the poison does the rest.
There are, however, some very few cases in which the bite is speedily
mortal. My notes speak of an Angular Epeira grappling with the largest
Dragon-fly in my district (Aeshna grandis, Lin.) I myself had entangled
in the web this head of big game, which is not often captured by the
Epeirae. The net shakes violently, seems bound to break its moorings.
The Spider rushes from her leafy villa, runs boldly up to the giantess,
flings a single bundle of ropes at her and, without further
precautions, grips her with her legs, tries to subdue her and then digs
her fangs into the Dragon-fly's back. The bite is prolonged in such a
way as to astonish me. This is not the perfunctory kiss with which I am
already familiar; it is a deep, determined wound. After striking her
blow, the Spider retires to a certain distance and waits for her poison
to take effect.
I at once remove the Dragon-fly. She is dead, really and truly dead.
Laid upon my table and left alone for twenty-four hours, she makes not
the slightest movement. A prick of which my lens cannot see the marks,
so sharp-pointed are the Epeira's weapons, was enough, with a little
insistence, to kill the powerful animal. Proportionately, the
Rattlesnake, the Horned Viper, the Trigonocephalus and other ill-famed
serpents produce less paralysing effects upon their victims.
Public-domain text, read in full here on John Shaqi.
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