Ключевые слова: 17 years, 2021, adult, animal, arthropod, black insect, brood 10, brood x, bug, cicada, cicadidae, colorful background, cute, delaware, eastern, ecosystem, emergence, emergent, endemic, finger, friendly bug, friendly insect, great eastern brood, green nature, habitat, hand, hemiptera, indiana, insect, leaf, magicicada, magicicada cassinii, magicicada septendecim, magicicada septendecula, maryland, natural, nature, new jersey, pennsylvania, perched, periodical, periodical cicada, predator, red eye, resting, satiation, tennessee, united states, vegetation, wildlife, woodland, zoology,