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.
Wolf spider
"Hogna" is the genus with the largest of the wolf spiders. Among the "Hogna" species in the U.S., the nearly solid dark brown "H. carolinensis" (Carolina wolf spider) is the largest, with a body that can be more than long. It is sometimes confused with "H. helluo", which is somewhat smaller and different in coloration. The underside of "H. carolinensis" is solid black, but the underside of "H. helluo" is variegated and has reds, oranges, and yellows with shades of black.