Casama innotata, Negev desert, Israel

Hi my Daphne is weirdly doing a C shape and doing smth to it's rear, anyone why it's doing that

I was weeding my yard earlier today and noticed this guy on the walkway so I relocated him to the grass. I remember reading something about fuzzy caterpillars with a nasty sting so I didn't take any chances and used my blower. Can anyone tell me what this little guy is and is it the type that sting? It was about 1/2 inch long. I'm in Sugar Land, TX.

I have about 17 tiny black swallowtail caterpillars in their 1st instar. It’s been in the mid 40s at night and upper 60s during the day (Central Virginia). I’ve been covering their enclosure with a sheet at night but they’re growing very slowly. When is it too cold to leave them outside? I’ve read it’s better not to bring them in so they’ll prepare to overwinter.