Published online by Cambridge University Press: 31 May 2012
A study of the type specimens of species of Syrphini described by Matsumura in 1917 shows that Macrosyrphus is a junior synonym of Metasyrphus Matsumura, Mesosyrphus is a junior synonym of Melangyna Verrall, and Parasyrphus is a senior synonym of Phalacrodira Enderlein. Incorrect designations of type-species for Episyrphus and Stenosyrphus are noted.