If they're a form of stinkbug the toads will probably find them unpalatable. The idea of the "stink" mechanism is to make them taste bad so once they have one they won't eat more. It really depends on the frog/toad. Some frogs wont eat worms ever again after eating red wigglers, for example, since they taste bad. I had a frog that ate one and wouldn't eat worms, but my Woodhouse's toads love them, and never refuse them. If you want you can try feeding them to the toads.