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.
Poecilopompilus interruptus
A highly variable spider wasp, which is 13 mm in length. "P. interruptus" has long orange antennae, bold rufous-brown and yellow bands on the mesosoma with yellow and brown markings on the thorax. Its legs are brown and yellow and the wasp's wings are brown. The amount of red, brown and yellow markings shows great individual variation. The antennae of males are straight or gently curved while females have antennae that curl at the ends. "Poecilopompilus" wasps may be a Müllerian mimics of various wasp species and this species appears to mimic paper wasps of the genus "Polistes". To distinguish this species from "P. algidus" the observer needs to examine the spines on the front tarsi of females and the inner margin of the eyes, "P. interruptus" females have four weak spines on the front tarsi in females and parallel inner eye margins while "P. algidus" has three strong spines and shows convergent inner eye margins.