V. A. Mutin
New data on the taxonomy of the Palaearctic hover-flies (Diptera, Syrphidae).
Year: 2001, Number: 99, Pages: 19-20
Microdon nigrodorsatum sp. n. is described from Honshu (Japan). Two new synonyms are proposed: Sphegina (Sphegina) alaoglui Hayat, 1997 = Sphegina (Sphegina) pontica Mutin, 1998, syn. n.; Paragus (Paragus) gulangensis Li et Li, 1990 = Paragus (Paragus) dauricus Mutin, 1999, syn. n.