grass moth, acronicta rumicis larvae, caterpillar climbing on leaves and dark background. macro animal

acronicta acronictinae animal arthropod background biology brown butterfly camouflage caterpillar climbing closeup detail ecosystem entomology environment fauna fluffy furry grass growth hair hairy insect insecta insects invertebrate knot larvae leaf lepidoptera macro moth natural nature noctuidae nymph one pest protective red rumicis small texture toxic vulnerability white wild wildlife