The Golden Tortoise Beetle has the remarkable ability to change its color and reflectivity on whim by changing the levels of moisture in its shell. They are relatively common in the eastern United States, especially Florida, and eat primarily morning glory leaves. They can change their shells from clear to golden, and can add extra jewels on their back during certain times of the year to make them look like ladybugs.
The Jewel Scarab is also a North American species, but is found mainly in the southwestern edge of the country. Although they can’t change their shells, they are still quite beautiful and their brightly reflective backs make them very desirable among collectors. What fascinating insects.