Papilio thoas- mariposa de los naranjos

Here you can see clearly the difference between him and the papilio cresphontes. Look at the white bar with a confetti punched out, then at the white bits above it. These here are round like bit of rice, the cresphontes has more edgy ones.
Also you can tell for sure that those only appear when the mandarins are on their way out and the sweet lime have made fresh shoots. That is when you find the caterpillars hanging from the trees.