The Euthalia ACONTHEA butterfly caterpillar has so effective camouflage, that even when observed directly on a sheet, It is difficult to distinguish without a trained eye. Η Euthalia Aconthea, also called Common Baron, It's a Nymphalidae family of the Nymphalidae family located in southern and southeast Asia. The Euthalia AConthea caterpilla. Her bright green body mimics the color of the leaves, While the lighter -colored stripes are reminiscent of their ribs. Immovable during the day, becomes almost undetected by birds and other predators, exploiting this resemblance to feed on distinctive.