The number of species in the order Diptera (true flies) known to occur in Ireland is 3,304. There are 98 Dipteran families in Ireland. [1][2] For genera and species within the various Families, see Fauna Europaea.
including
For Superfamilies Xylophagoidea, Tabanoidea, Stratiomyoidea, Nemestrinoidea, Asiloidea for which the listing given is complete see List of Diptera of Ireland Superfamilies Xylophagoidea, Tabanoidea, Stratiomyoidea, Nemestrinoidea, Asiloidea
see List of the Syrphidae of Ireland
Faune de France Bibliotheque-virtuelle-numerique Titles available as free pdf