Sepsis nigripes Meigen, 1826

Material: Switzerland: BE:Rümligen, 540 m, 2001, 2005 (all leg. Duelli). FR: Nuvilly, 650 m, 2001, 2005 (all leg. Duelli). GE:Bernex/Chante-Merle, 420 m, 7.vii.2000 (leg. Merz &Bächli). TG:Roggwil, 420 m, 2004 (leg. Duelli). VD: Senarclens, 600 m, 2000 (leg. Duelli). VS:Mund/Finnen, 1400 m, 21.vi.2014; Visperterminen, 2300 m, 30.vii.1998 (leg. Merz &Bächli). ZH:Rafz, 420 m, 2005 (leg. Duelli); Uitikon, 540 m, 2005 (leg Duelli).

Distribution:Palaearctic (Ozerov 2005).

Comments: S. nigripes is arare and enigmatic species. It can be difficult to distinguish from S. flavimana and S. biflexuosa,especially small, female specimens (Rohner et al. 2014). Adults have been collected on cow pastures (Rohner et al. 2015), but its ecology and habitat preferences remain unknown.