I’m in southern Ontario. I thought maybe he was a giant swallowtail caterpillar, but I haven’t seen any of those with the little green vests on. He was on some kind of honeysuckle bush but that was underneath an elm tree which he could’ve fallen from.
Found this bug, around 1.5 inches long erratically crawling on the ground of an indoor lumberyard. It was brown, with a black stripe down the middle of the back, it had long legs (idk how many) and looked like some sort of centipede.