Sucking up a dead caterpillar for breakfast

I have terrible moth problems with a couple of shrubs - caterpillars have curled the leaves around themselves with small webs and they have been desssss - icating the plants. I have been squashing them in situ and this morning 3 wasps arrived and started digging in the leaf folds to get at the remains - so here is one, antennae drooping and leaning back with the effort, caught at his meal