a puss moth caterpillar cerura vinulais feeding on a willow tree leaf in woodland.

animal background beautiful beauty brown bug camouflage caterpillar cerura closeup color colorful creature england entomology exotic eye fauna feeding forest green growing grub insect instar invertebrate isolated larva larvae leaf lepidoptera macro moth natural nature outdoor outdoors puss sallow springtime summer tree tremula vinulais wild wildlife willow woodland