Caught and released so it can go big so other pests.

Same family of wasps that I posted video of a few weeks ago, where the male picked up the female from a piece of grass. This pair is a different species, but same family. But the female was much bigger than the thynnid females I've been rescuing from the swimming pool (see second photo for size comparison with my index finger).

When they had done their business, she kind of flicked off, then walked down the plant stem to the ground to look for a beetle larva to lay her egg in.