

- A late stage gypsy moth caterpillar. Note the blue and red dots along its back.Photo: University of Illinois/James Appleby

- A high outbreak year, with thousands of egg cases, pupae, and adults covering tree trunks.Photo: © Debbie Hadley, WILD Jersey

- The male gypsy moth has feathery antennae to detect females.Photo: Louis-Michel Nageleisen, Département de la Santé des Forêts, Bugwood.org