Well cumulatively iv kept 7 american toads, they ate pretty much everything without a hickup. Except for my smallest guy, he ate a mealworm + subsequently died the following day. I wish we had more knowledge about stinkbugs but as u know theyr sort of a new phenomenon in the states. I used to work at a wharehouse last year and there was 2 things that place was infested with: american toads + stinkbugs, and i never came across a dead american toad out of the 20 months that i worked there. I dont mean to make promises because i honestly dont know, amphibians are fragile creatures. But i do know american toads are on the more hardy side of the scale, so i want to say that your little guy should be ok. Just keep monitoring his/her behavior