I have an idea but not sure if I am correct. Luna Moth larva?



Body soft, not too fast of a mover, stinger or what ever it is on top side movable with my finger, mouth parts did not grip or bite at items offered to it like a beetle would.
I've seen these critters in Yooper Land a lot but this is the first for me here. I was on my plum tree so we moved it to the wood pile.
Any help in identification will be appreciated. BTW I have some cat eared spiders living under my deck again this season. Last year they got huge eating the bugs in their webs. I'll get some pictures of them next.