Chrysina limbata is a species of beetle native to the tropical rainforests of Central America known for its metallic reflective silver color which makes specimens look like living pieces of jewelry.
Chrysina limbata is regarded as one of the most beautiful insect species on Earth, and for good reason. These beetles have a reflective silver metallic appearance that is so clear one can actually see their reflection in them. According to Wikipedia, this stunning visual effect “is achieved through thin film interference within layers of chitin. These layers of the chitin coating are chirped (in layers of differing thicknesses), forming a complex multilayer as each layer decreases in depth; as the thickness changes, so too does the optical path-length. Each chirped layer is tuned to a different wavelength of light”.
