Nemorimyza posticata (Meigen, 1830)

Material examined.

GE: Jussy, Prés de Villette, 475m a.s.l., [46°14'N, 6°16'E, 1 ♂, 8.viii.2000, B. Merz & G. Bächli leg. GL: Richisau [47°01'N, 8°54'E, 1100m a.s.l.], 1 ♂, 7.-11.viii.1995.

Distribution.

North America: Canada, United Stares; Central America: Costa Rica; Europe: Austria, Belarus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Great Britain, Hungary, Ireland, Italy, Lithuania, Poland, Netherlands, Norway, Spain, Sweden; Asia: China, Japan (Papp and Černý 2016). First record from Switzerland.

Biology.

Host plants Aster, Baccharis, Buphthalmum, Erechtites, Solidago .