**..My Lists, The Ten #AMAZING #INSECTS in the #WORLD..** 5) #FLY/#FLIES (C.#Insecta) - Are true flies of the order #Diptera, the name was derived from the #Greek words "di" meaning "two" and "pteron" meaning "wings". The insects of this order use only single pair of wings to fly, the hindwings having evolved into advance #mechanosensory organs known as #Halteres, which act as high-speed sensors of rational movement, and allow Dipterans to perform advanced aerobatics. There are an estimated of 1,000,000 species of the order Diptera, including #Horseflies, #CraneflIes, #Hoverflies, and others, and about 150-thousand species of Dipterans have been described. The first true Dipterans know are from the Middle Triassic period at around 240-million years ago, and became widespread during the Middle and Late Triassic. The three episode of Evolutionary Radiation are thought to be occured based on the fossil records. Many new species of Diptera developed in the #Triassic about 220 mya, and many lower #Brachycera appeared in the #Jurassic at some 180 mya, and the 3rd radiation took place among the #Schizophora at the start of the #Paleogene, 66-million years ago. The Flies are important pollinators, second only to the Bees, and their relatives. They have #chemoreceptors that detect smell and taste, and #mechanoreceptors that respond to touch. The Fly is one of the fastest flying insects, such as the male #Horsefly, a World's Fastest Insect, with recorded flying speed at 90.5-MpH (145.8-KpH), and also the 5th Fastest Animal in the World. The name for a group of Flies known as "#Business".