5.7. A snake-mimicking caterpillar of the spicebush swallowtail, Papilio troilus (Lepidoptera: Papilionidae), from New Jersey, USA.
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An adult moth of Utetheisa ornatrix (Lepidoptera: Arctiidae) emitting defensive froth containing pyrrolizidine alkaloids that it sequesters as a larva from its food plants, legumes of the genus Crotalaria.
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The cryptic adult moths of four species of Acronicta (Lepidoptera: Noctuidae): A. alni, the alder moth (top left); A. leporina, the miller (top right); A. aceris, the sycamore (bottom left); and A. psi, the grey dagger (bottom right).