When she perforates the rump of her victim the Odynerus does not touch the flesh, which is a diet absolutely contrary to her tastes; she confines herself to drinking the defensive liquid which the grub distils at the end of its intestine.

For her this liquid is doubtless a beverage of delicious flavour, with which she relieves from time to time her staple diet of the honey distilled by flowers, some highly spiced condiment, appetiser or aperient, or perhaps--who knows ?--a substitute for honey.

Although the qualities of the liquid escape me, I see at least that Odynerus cares nothing for the rest.
Once the pouch is emptied the larva is abandoned as useless offal, a certain sign of non-carnivorous appetites.

Under these conditions the persecutor of Chrysomela can no longer be regarded as guilty of an unnatural double dietary.
We may even wonder whether other species also are not apt to draw some direct profit from the hunting imposed upon them by the needs of the family.

The procedure of Odynerus in opening the anal pouch is so far removed from the usual that we should not anticipate many imitators; it is a secondary detail, and impracticable with game of a different kind.
But there may well be a certain amount of variety in the means of direct utilisation.