Wasps, Social and SolitaryPeckham, George W. (George Williams)
Science
Wasps, Social and Solitary
Peckham, George W. (George Williams)
Wasps
We found that the egg of the wasp, which was seven millimeters long,
and rather slender, was placed on the under face of the thorax at a
right angle to its length, and parallel with the femur of the second
leg. This leg had apparently been stung so that it had swollen and
folded over the free end of the egg, which was thus firmly held in
place at both extremities.[3] Upon examination we found that the
abdomen of the grasshopper was beating regularly and automatically,
but the closest observation failed to discover any other movements,
nor would any part respond when stimulated. At three o’clock in the
afternoon we found the abdomen still pulsating, and, in addition, that
both antennæ moved several times when we lifted off the cover of the
jar that contained the insect. On the next morning the grasshopper was
very lively, the antennæ and labial palpi moving without stimulation.
It had passed fæces, and was able to lift its abdomen, which was
curved over toward the head, as it lay on its back, frequently and
with considerable violence. On the next afternoon there was no change
in the movements, but the egg was dead. On the seventh the grasshopper
responded to stimulation by a slight movement of the palpi and the
end of the abdomen. The pulsation of the abdomen continued until the
afternoon of the eighth, when it ceased, no effort of ours succeeding
in starting it again. The movements of the antennæ and palpi grew
weaker and weaker on the ninth, and on the morning of the tenth the
insect was dead, a period of five and a half days having elapsed since
it was brought into the nest.
We had not supposed that the digging up of her nest would much disturb
our Sphex, since her connection with it was so nearly at an end; but
in this we were mistaken. When we returned to the garden about half an
hour after we had done the deed, we heard her loud and anxious humming
from a distance. She was searching far and near for her treasure
house, returning every few minutes to the right spot, although the
upturned earth had entirely changed its appearance. She seemed unable
to believe her eyes, and her persistent refusal to accept the fact
that her nest had been destroyed was pathetic. She lingered about the
garden all through the day, and made so many visits to us, getting
under our umbrellas and thrusting her tremendous personality into our
very faces, that we wondered if she were trying to question us as to
the whereabouts of her property. Later we learned that we had wronged
her more deeply than we knew. Had we not interfered she would have
excavated several cells to the side of the main tunnel, storing a
grasshopper in each. Who knows but perhaps our Golden Digger, standing
among the ruins of her home, or peering under our umbrella, said to
herself: “Men are poor things: I don’t know why the world thinks so
much of them.”
[Illustration: NEST OF SPHEX]
Public-domain text, read in full here on John Shaqi.
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