Which order does not belong to the group of true bugs and bedbugs?

The correct choice is Collembola because this group, commonly known as springtails, is distinct from true bugs. True bugs, which include bedbugs and aphids, belong to the order Hemiptera. In contrast, Collembola represent a separate order of small, wingless arthropods that are primarily found in soil and leaf litter. They are known for their ability to jump using a special organ called a furcula.

Hemiptera includes a wide variety of insects that possess a unique mouthpart structure, adapted for piercing and sucking plant and, sometimes, animal fluids. Dictyoptera encompasses insects like cockroaches and termites, and while they have their own characteristics, they are still different from both Hemiptera and Collembola. Thysanoptera includes thrips, which again do not fall within the category of true bugs. Therefore, the classification of Collembola sets it apart from the other options provided, which are all associated with types of true bugs or similar insects.