What is the fastest insect in the world?

There appears to be some debate about this, and depends on whether we’re talking flying or crawling. A study in 1999 determined that the Australian tiger beetles may be the fastest running insects known. The fastest among them can run 5.6 miles an hour. As for flying speed, Sphinx moths, or hawk moths, have been measured at about 33 miles per hour, while a horse fly recently reached about 90 miles an hour. The American Deer Bot fly has been clocked at 50 miles per hour. The common dragon fly is also a quick one, flicking away at 25 miles per hour. We’d love to hear from anyone who has the definitive answer on this.