Regal silkmoth (citheronia regalis) also known as the royal walnut moth or hickory horned devil, native to north america, resting on a twig, one of the most beautiful moths in the world

terrestrial america invertebrate native animals wildlife moths cold one moth moth silkmoth insects regal entomology moths twig horned insect royal resting ectotherms royal bugs arthropoda nocturnal winged silkmoths ectothermic devil walnut blooded hickory arthropods nature insecta vertical lepidoptera arthropod walnut zoology citheronia invertebrates verticals ectotherm bug regalis fauna saturniidae animal