Massalongia (fly)Massalongia is a genus of flies in the family Cecidomyiidae. The larvae induce galls on birches.In 1855, the genus was named after Italian lichenologist Abramo Bartolommeo Massalongo by German lichenologist Gustav Wilhelm Körber.SpeciesThe following six species have been described in this genus:Massalongia altaica Fedotova, 1990Massalongia bachmaieri Möhn, 1954Massalongia betulifolia Harris, 1974Massalongia nakamuratetsui Elsayed & Tokuda 2020Massalongia papyrifera ''Massalongia rubra''