Beetles are a group of insects that form the order Coleoptera and constitute nearly 40% of all described insects. At roughly 400,000 species, beetles are by far the largest order of insects, however, scientists have estimated that there could potentially exist upwards of eight million species of beetles! In the United Sates alone, there exists roughly 30,000 species of beetles. These figures are constantly rising since new species are frequently discovered. The largest family of beetles are weevils, known scientifically as Curculionidae. Other large beetle families include ground beetles (Carabidae), leaf beetles (Chrysomelidae), scarab beetles (Scarabaeidae), darkling beetles (Tenebrionidae), and many, many more. Beetles can be found in almost every habit and play a final role in their ecosystem. They are excellent decomposers, especially in forested habitats. Beetles feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. However, other species of beetles can pose a serious threat to nature and agriculture. For instance, bark beetles are responsible for killing thousands of trees every year. The cotton boll weevil is an infamous pest in the agricultural industry. Beetles are known to target and ruin stored foods including meat, dairy products, flour, cereal, grains, nuts, and fruits. Beetles are generally characterized by their hard exoskeleton and forewings and most beetles posses mandibles. The exoskeleton serves as an armor to protect their delicate flight wings and soft abdomen underneath.