Distribution : Worldwide
Size : 16 – 80 mm ( ½ – 31/4 In )
The order Diptera comprises the true or two winged flies the adult have a single pair of wings, which makes them distinct from all other insect. A few are wingless, but these are specially adapted for particular lifestyles, such as parasitism. There are vast number of different true fly species currently, only about 120,000 have been recorded by science, but it is thought that overall there are at least double this number. Many are agricultural or medical pests, especially the blow-flies, tsetse flies and mosquitoes. Others, such as gnats and midges are more of a nuisance than a serious problem. The dipteran flies all go through a fully holometabolous life cycle, with the egg being followed by larva, then a pupa and finally the adult. The order displays an incredible amount of diversity, and the various species exploit almost every possible ecological niche on the planet.