This is a Wavy-Lined Emerald Moth Caterpillar, one of the coolest caterpillars you’ll come across, it’s known for its camouflage tactic. I found this one in our garden while visiting my hometown during summer. This caterpillar uses silk to stick whatever plant it’s feeding on onto it’s back, in order to hide away from predators. The one I found has basil flowers on its back since it currently lives on our basil plant. What’s even cooler is that once the flowers on her back wilt, it replaces them with new ones Here is an extra article about them: https://twistedsifter.com/2012/05/wavy-lined-emerald-moth-camouflaged-looper-info-pics/