arrangement of its nerve-centres, lends itself, alone of all larvae, to the
Wasp's successful enterprises. In the presence of this underground game, so
greatly varied in size and shape and yet so judiciously selected to
facilitate paralysis, I do not hesitate to generalize and I accept, as the
ration of the other Scoliae, larvae of Lamellicorns whose species will be
determined by future observation. Perhaps one of them will be found to give
chase to the terrible enemy of my crops, the voracious White Worm, the grub
of the Cockchafer; perhaps the Hemorrhoidal Scolia, rivalling in size the
Garden Scolia and like her, no doubt, requiring a copious diet, will be
entered in the insects' "Who's Who" as the destroyer of the Pine-chafer,
that magnificent Beetle, flecked with white upon a black or brown ground,
who of an evening, during the summer solstice, browses on the foliage of
the fir-trees. Though unable to speak with certainty or precision, I am
inclined to look upon these devourers of Scarabaeus-grubs as valiant
agricultural auxiliaries.

The Cetonia-larva has figured hitherto only in its quality of a paralysed
victim. We will now consider it in its normal state. With its convex back
and its almost flat ventral surface, the creature is like a semi-cylinder
in shape, fuller in the hinder portion. On the back, each of the segments,
except the last, or anal, segment, puckers into three thick pads, bristling
with stiff, tawny hairs. The anal segment, much wider than the rest, is
rounded at the end and coloured a deep brown by the contents of the
intestine, which show through the translucent skin; it bristles with hairs
like the other segments, but is level, without pads. On the ventral
surface, the segments have no creases; and the hairs, though abundant, are
rather less so than on the back. The legs, which are quite well-formed, are
short and feeble in comparison with the animal's size. The head has a
strong, horny cap for a cranium. The mandibles are powerful, with bevelled
tips and three or four teeth on the edge of the bevel.