Geometrid Moth Caterpillar (Geometridae)
When caterpillars involuntarily or intentionally drop from the tree canopy, they can regain their original position by climbing silk lifelines spun out from the head spinnerets. They may utilise this feature when disturbed and as a means of escape from predators or when it comes time to relocate due to defoliation or to moult or pupate.
Pu'er, Yunnan, China