might have dried up its
moisture. I did the best I could to remedy all these probable reasons
of failure. I went to work with every possible caution in breaking open
the home; I cast the shadow of my body over the nest, to save the grub
from sunstroke; I at once transferred larva and provisions into a glass
tube and placed this tube in a box which I carried in my hand, to
minimize the jolting on the journey. Nothing was of avail: the larva,
when taken from its dwelling, always allowed itself to pine away.

For a long time I persisted in explaining my want of success by the
difficulties attending the removal. Eumenes Amedei's cell is a strong
casket which cannot be forced without sustaining a shock; and the
demolition of a work of this kind entails such varied accidents that we
are always liable to think that the worm has been bruised by the
wreckage. As for carrying home the nest intact on its support, with a
view to opening it with greater care than is permitted by a
rough-and-ready operation in the fields, that is out of the question:
the nest nearly always stands on an immovable rock or on some big stone
forming part of a wall. If I failed in my attempts at rearing, it was
because the larva had suffered when I was breaking up her house. The
reason seemed a good one; and I let it go at that.

In the end, another idea occurred to me and made me doubt whether my
rebuffs were always due to clumsy accidents. The Eumenes' cells are
crammed with game: there are ten caterpillars in the cell of Eumenes
Amedei and fifteen in that of Eumenes pomiformis. These caterpillars,
stabbed no doubt, but in a manner unknown to me, are not entirely
motionless. The mandibles seize upon what is presented to them, the
body buckles and unbuckles, the hinder half lashes out briskly when
stirred with the point of a needle. At what spot is the egg laid amid
that swarming mass, where thirty mandibles can make a hole in it, where
a hundred and twenty pairs of legs can tear it? When the victuals
consist of a single head of game, these perils do not exist; and the
egg is laid on the victim not at hazard, but upon a judiciously chosen
spot. Thus, for instance, Ammophila hirsuta fixes hers, by one end,
cross-wise, on the Grey Worm, on the side of the first prolegged
segment. The eggs hang over the caterpillar's back, away from the legs,
whose proximity might be dangerous. The worm, moreover, stung in the
greater number of its nerve-centres, lies on o