Chromacris icterus is a strikingly colorful Neotropical lubber grasshopper (family: Romaleidae). Found across Central and South America, these grasshoppers are famous for utilizing brilliant warning colors and plant toxins to deter predators. As juveniles, the jet-black nymphs sport vivid red heads and antennae, crowded together in dense, eye-catching clusters on their host plants. Upon reaching adulthood, they transform into a deep forest-green, hiding a stunning flash of bright red or orange on their hind wings. They feed heavily on Solanaceae (nightshade) shrubs, absorbing toxic plant alkaloids into their bodies to ensure they taste terrible to any potential predators. I encountered this amazing grasshopper twice in the Amazon region of Ecuador, in city parks in Tena and Puyo.