The Cambridge natural history, Vol. 04 (of 10)Warburton, Cecil
Science
The Cambridge natural history, Vol. 04 (of 10)
Warburton, Cecil
Animals
Fabre[281] acted the part of the “insidious rustic” with slight success;
but by other stratagems he enticed the creatures from their holes, and
made some interesting observations upon the effects of their bite. He
found that bees and wasps were instantaneously killed by them. This
immediately fatal effect he found to be due to the fact that the spider
invariably struck the insect in a particular spot, at the junction of
the head with the thorax. Bees must often wander into Tarantula’s holes,
and a prolonged contest, though it might end in the death of the insect,
would be certain also to result fatally for the spider. It has,
therefore, acquired the habit of striking its foe in the one spot which
causes instant death. When Fabre presented a bee to a Tarantula in such
a manner that it was bitten in some other region, the insect survived
several hours.
A young sparrow, just ready to leave the nest, was bitten in the leg.
The wound became inflamed, and the limb appeared to be paralysed, but
the victim did not at first suffer in general health, and fed heartily;
death resulted, however, on the third day. A mole died in thirty-six
hours after the bite.
From these experiments, Fabre came to the conclusion that the venom of
the Tarantula was at all events too powerful to be entirely negligible
by man.
[Illustration:
FIG. 197.—_Latrodectus mactans_, ♂, natural size.
]
Trifling causes may have a fatal effect upon a man in ill health, and it
is quite possible that death has sometimes resulted from the Tarantula’s
bite. Its effect upon a healthy subject, however, is certainly not
serious. Goldsmith, in his _Animated Nature_, entirely discredits the
current stories about this animal, saying that the Italian peasants
impose upon credulous travellers by allowing themselves, for money, to
be bitten by the Tarantula, and then feigning all the symptoms which are
traditionally supposed to ensue.
There is a genus of the Theridiidae, by name _Latrodectus_, whose
poisonous reputation almost rivals that of the Tarantula. It is
remarkable, moreover, that it is regarded as particularly dangerous in
such widely separated portions of the world as Madagascar, New Zealand,
Algeria, the West Indies, and North America. These spiders, strangely
enough, are by no means particularly large or formidable in appearance.
Public-domain text, read in full here on John Shaqi.
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