Wasp
Wasps first appeared in the fossil record in the Jurassic, and diversified into many surviving superfamilies by the Cretaceous. They are a successful and diverse group of insects with tens of thousands of described species; wasps have spread to all parts of the world except for the polar regions. The largest social wasp is the Asian giant hornet, at up to in length; among the largest solitary wasps is a group of species known as tarantula hawks, along with the giant scoliid of Indonesia ("Megascolia procer"). The smallest wasps are solitary chalcid wasps in the family Mymaridae, including the world's smallest known insect, with a body length of only , and the smallest known flying insect, only long.
List of mammals of Wyoming
The elk, or wapiti ("Cervus canadensis"), is one of the largest species of deer in the world and one of the largest mammals in North America and eastern Asia. In the deer family (Cervidae), only the moose, "Alces alces" (called an "elk" in Europe), is larger, and "Cervus unicolor" (the sambar deer) can rival the "C. canadensis" elk in size. Elk range in forest and forest-edge habitat, feeding on grasses, plants, leaves, and bark.