Camouflaged Loopers: these caterpillars create their own camouflage by collecting flower petals and other bits of vegetation, then using silk to "glue" the pieces onto their bodies
Caterpillars of the wavy-lined emerald moth (Synchlora aerata) are commonly known as camouflaged loopers. In order to conceal themselves from predators, these clever little caterpillars decorate their bodies with trimmings from the plants that they feed upon, using silk to hold the pieces in place. This defense mechanism is known as adventitious protection or self-decorating behavior.
Whenever the caterpillar switches to a different host plant, it alters the camouflage to match its new surroundings, often shedding its old disguise and building a new one from scratch.
Camouflaged loopers feed on various flowers, incorporating the petals, leaves, seed pods, stamens, and other bits of plant matter into their custom-built camouflage.
Synchlora aerata can be found throughout the eastern half of North America, from southern Canada down through Texas.
The adults of this species are known as wavy-lined emerald moths; they have a pale green appearance, with several wavy white lines running across their wings, as depicted in the image below.
Missouri Department of Conservation: The Wavy-Lined Emerald
Geometrid Caterpillars of Northeastern and Appalachian Forests: Camouflaged Loopers
Loudoun Wildlife Conservancy: Wavy-Lined Emerald Moth, Master of Disguise
Maryland Biodiversity Project: Wavy-Lined Emerald Moth (Synchlora aerata)
Nebraskaland Magazine: The Amazing Camouflaged Looper
University of Alberta Museums: Synchlora aerata
Lake County Forest Preserves: Camouflage Revealed