Caterpillar
The elongated wormlike larvae of butterfly or moths that belong to order Lepidoptera with eruciform body, they eat plant materials mostly, while some eat insects and are cannibalistic. Caterpillars are typically voracious feeders and many of them are among the most serious agricultural pests Most of the caterpillars are covered in hair – like bristles called setae. These tiny filaments are often too pale to see, but a number of caterpillars are covered in thick swathes of setae that they mean for us to see and to heed. Theses setae can cause some mild skin irritations for people with sensitive skin. Setae act like caterpillar adhesives that have detachable ends that can lodge in the skin of an unlucky handler. The small ends can also float into mucus membranes, like in our eyes and prove almost impossible to extract.