a caterpillar, orthosia miniosa, curled up into a ring.

animal insect leaf macro nature wildlife caterpillar closeup focus stacking gree green background hopper orthosia miniosa photography tree antennae arthropod beautiful biology british brown bug butterfly camouflage camouflaged close up color control copy space crepuscular diurnal entomology environment european family fauna forest head insecta invertebrate lepidoptera moth night noctuidae nocturnal pattern pest rest