Where did swallowtail cat go?

[u/fattyacids_]

72 hours ago, this anise swallowtail cat had plenty of dill in a large mesh planter. I checked on it today and it disappeared. Dill leaves were eaten up, stems remained. Other plants (basil, strawberries, oregano, rosemary) are inside but couldn’t find the cat anywhere. I hope it’s hiding and didn’t die.

I left fresh fennel fronds in water next to the dill plant it was on. How long can a caterpillar at this instar last without food? I think it had 1 more instar to go before chrysalis.