Coleoptera, commonly known as beetles, is the largest order of insects, comprising over 350,000 species. They are characterized by their hard, protective forewings called elytra, which cover their delicate hind wings and abdomen. Beetles can be found in various habitats, including forests, deserts, and freshwater environments. These insects play essential roles in ecosystems, such as decomposing organic matter and pollinating plants. Some well-known families within Coleoptera include Ceratocombus and Scarabaeidae, which includes the scarab beetle. Their diverse forms and behaviors make them a fascinating subject of study in entomology.