What are the two main groups included in the order Coleoptera?

The correct answer identifies beetles and weevils as the two main groups included in the order Coleoptera. Coleoptera is the largest order in the animal kingdom, encompassing a vast diversity of species, including both true beetles and weevils.

Beetles, characterized by their hardened forewings (elytra), serve various ecological roles and inhabit numerous environments. Weevils are a subgroup of beetles known for their elongated snouts and are often herbivorous, affecting plants directly as pests. Together, these groups represent the defining features of Coleoptera, emphasizing their significance in both biodiversity and ecological systems.

The other options do not pertain to the Coleoptera order. Flies and butterflies belong to different orders, such as Diptera and Lepidoptera, respectively. Moths, while part of Lepidoptera, do not appear in the correct answer. Similarly, termites and cicadas are classified under different orders, Isoptera and Hemiptera. Thus, recognizing that beetles and weevils are the hallmark representatives of the Coleoptera order is essential for understanding this classification within entomology.