I'm not sure what the best way to do this is gonna be, but I'd say a good place to start looking for critters might be around the garden.
If shield bugs are the same as those stink bugs, I think they might eat other bugs, but I don't know if it's any of the ones on the list. Might want to keep those guys separate just in case. Same with the crickets, those things will eat anything.
I'm gonna see if I can't finagle up some kind of butterfly feeder with some sugar water. See if maybe we can't get some of them to come to us.