When dropping her egg upon the honey, therefore, the Anthophora at the
same time deposits in her cell the mortal enemy of her race; she
carefully plasters the lid which closes the entrance to the cell; and
all is done. A second cell is built beside it, probably to suffer the
same fatal doom; and so on until the more or less numerous parasites
sheltered by her down are all accommodated. Let us leave the unhappy
mother to continue her fruitless task and turn our attention to the
young larva which has so adroitly secured itself board and lodging.
In opening cells whose lid is still moist, we end by discovering one
in which the egg, recently laid, supports a young Sitaris. This egg is
intact and in irreproachable condition. But now the work of
devastation begins: the larva, a tiny black speck which we see running
over the white surface of the egg, at last stops and balances itself
firmly on its six legs; then, seizing the delicate skin of the egg
with the sharp hooks of its mandibles, it tugs at it violently until
it breaks, spilling its contents, which the larva eagerly drinks up.
Thus the first stroke of the mandibles which the parasite delivers in
the usurped cell is aimed at the destruction of the Bee's egg. A
highly logical precaution! The Sitaris-larva, as we shall see, has to
feed upon the honey in the cell; the Anthophora-larva which would
proceed from that egg would require the same food; but the portion is
too small for two; so, quick, a bite at the egg and the difficulty
will be removed. The story of these facts calls for no comment. This
destruction of the cumbersome egg is all the more inevitable inasmuch
as special tastes compel the young Sitaris-grub to make its first
meals of it. Indeed we see the tiny creature begin by greedily
drinking the juices which the torn wrapper of the egg allows to
escape; and for several days it may be observed, at one time
motionless on this envelope, in which it rummages at intervals with
its head, at others running over it from end to end to rip it open
still wider and to cause a little of the juices, which become daily
less abundant, to trickle from it; but we never catch it imbibing the
honey which surrounds it on every side.
For that matter, it is easy to convince ourselves that the egg
combines with the function of a life-buoy that of the first ration. I
have laid on the surface of the honey in a cell a tiny strip of paper,
of the same dimensions as the egg; and on this raft I have placed a
Sitaris-larva. Despite every care, my attempts, many times repeated,
always failed. The larva, placed in a paper boat in the centre of the
mass of honey, behaves as in the earlier experiments. Not finding what
suits it, it tries to escape and perishes in the sticky toils as soon
as it leaves the strip of paper, which it soon does.
Public-domain text, read in full here on John Shaqi.
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