This is the Pipevine caterpillar...we see them all over the place this time of year...they are looking for a place to pupate (rest). We have two I've been following...
The other one I was following found a spot on our back porch screen, but the process seems to have stopped before the chrysalis was completed (it created the webbing between itself and the screen, but this is as far as it's gotten). I've researched why this might occur (we saw this with another caterpillar last year) but have yet to identify a good answer. We've stopped using that door for now, but they both found their resting spot the same day, so I am not very hopeful that this one will survive.
Thanks for reading my blog, you are the best f/f/r/s/f's, see you tomorrow,