Original and used names: Sciophila diluta Zetterstedt, 1860: 6556.
Swedish sources: Sciophila diluta: Zetterstedt 1860:6556 [VG]; Wahlgren 1921:167 [VG]; Väisänen 1982a:38 [VG]; Väisänen 1984:328 [VG]; Mycomya diluta: Kjærandsen et al. 2007:98 [doubtful].
Remarks: The holotype is a female that cannot be recognized (Väisänen 1984), and remains a nom. dub.
Taxonomic name: