The European Hornet Moth (Sesia apiformis) looks terrifying at first glance, but its uncanny resemblance to a giant wasp is just an elaborate disguise meant to keep predators at bay.
The hornet moth is a prime example of Batesian mimicry, a form of mimicry where a harmless species has evolved to imitate the look and/or behavior of a harmful species in order to protect itself from predators. In this case, the yellow and back combination, the shape of the abdomen, and of the see-through wings do a great job of creating the illusion of a menacing wasp. It’s only on closer inspection that you notice the insect’s lack of a clearly defined, wasp-like waste, a furry body, and two uncharacteristically small eyes.