Which order includes ants, bees, wasps, and hornets?

The order that includes ants, bees, wasps, and hornets is Hymenoptera. This order is characterized by insects that typically have two pairs of wings and a distinctive body structure, which often includes a narrow waist. Hymenoptera is significant in ecological systems for their roles in pollination and as predators or social insects in colonies. Ants, bees, wasps, and hornets, all belonging to this order, demonstrate various social structures and behaviors, particularly in colonies and hives, making them unique among insect orders.

The other orders mentioned do not encompass these insects. Coleoptera is known for beetles, which have hard-shelled forewings; Dermaptera includes earwigs; and Orthoptera consists of grasshoppers and crickets. Each of these orders is distinct and characterized by different anatomical features and ecological roles.