Beetles damage wood. The larvae tunnel in the wood eating what they can, and when they emerge as adults, the wood is further weakened, which can result in destruction of the wood. Due to this nature of the beetles, they are considered to be pests. They can kill trees or even cause major economic damages. Though these beetles are considered to be pests, they make amazing jewelry, art and designs. Their color is stunning and could stop anyone in their tracks to take a closer look.