Larva of a spice bush swallowtail showing off his huge false "eye" on the enlarged thorax that is effective at creating the illusion to a predator that the larva is much larger than it really is, causing the predator to have "second thoughts" about attacking. The real eyes are just below the yellow band that covers the head. check

LepidopteraPapilionidaePapilio troilusspice bush swallowtaillarvaeyespot