Definition of Diptera in US English:


plural noun

  • 1A large order of insects that comprises the two-winged or true flies, which have the hind wings reduced to form balancing organs (halteres). It includes many biting forms, such as mosquitoes and tsetse flies, that are vectors of disease.

    • ‘Diets of little brown myotis and eastern pipistrelles were highly diverse, consuming an even proportion of six orders of insects including Coleoptera, Hemiptera, Lepidoptera, Homoptera, Diptera, Hymenoptera, and Tricoptera.’
    • ‘The species of insects studied prior to this study were from 11 orders, but the vast majority were from four orders: Lepidoptera, Diptera, Hymenoptera, and Hemiptera.’
    • ‘The staminate and pistillate flowers of S. mucugensis and S. curralensis were visited by insects belonging to three orders: Coleoptera, Diptera, and Hymenoptera.’
    • ‘Pollination in I. floridanum is affected by litter-dwelling insects to include Diptera and Coleoptera.’
    • ‘The leaf mining habit is known to have evolved only in four extant orders of insects: the Coleoptera, Diptera, Hymenoptera and Lepidoptera.’
    1. 1.1as plural noun diptera Insects of the order Diptera; flies.
      • ‘The final species, Asclepias cucullata, is infrequently visited by Diptera, bees and other insects.’
      • ‘We hypothesize that the Drosophila Adh gene may not be orthologous with the other known Adh genes of higher diptera.’
      • ‘Small flowers and red petals suggest pollination by small diptera or lepidoptera, but the flowers do not appear to produce nectar.’


Modern Latin (plural), from Greek diptera, neuter plural of dipteros ‘two-winged’, from di- ‘two’ + pteron ‘wing’.