Other carnivorous larvae--at least in the series of the Hymenoptera--must share it.

Let us experiment.

The method need not be changed.

I exhume the larvae when in a state of medium growth, to avoid the vicissitudes of extreme youth; I collect the bodies of the grubs and insects which form their natural diet and smear each body with honey, in which condition I return them to the larvae.

A distinction is apparent: all the larvae are not equally suited to my experiment.