Sepsis fulgens Meigen, 1826

Material: Switzerland: AG:Habsburg, 450 m, 22.iii.2004, 5.iv.2004, 19.vii.2004, 26.vii.2004, 16.viii.2004, 30.viii.2004, 14.ix.2004, 20.ix.2004, 27.ix.2004 (all leg. Wermelinger); Rottenschwil, 450 m, 14.vi.2008; Sarmenstorf, 550 m, 22.iii.2004, 26.vi.2004, 20.ix.2004 (all leg. Wermelinger); Schlossrued, 600 m, 2000, 2001, 2004, 2005 (all. leg. Duelli); Würenlingen, 420 m, 3.vii.2004, 6.vii.2000, 7.vii.2000, 20.vii.1996, 14.viii.1997, 31.viii.1999. BE:Beatenberg, 1470 m, 2000, 2001, 2005, 2006 (all leg. Duelli); Rümligen, 540 m, 2000, 2004, 2005 (all leg. Duelli); Ruppoldsried, 500 m, iv.–x.1987. BL:Bubendorf, 15.–22.vi.2000, 22.–29.vi.2000, 29.vi.–6.vii.2000, 13.–20.vii.2000, 20.–27.vii.2000. 27.vii.–3.viii.2000, 3.–10.viii. 2000 (all leg. Wolf); Pratteln, 480 m, 2004, 2005 (leg. Duelli). BS:Basel/Zolli, 24.vi.–8.vii.2005 (leg Baur et al.). FR:Courlevon, 600 m, 2001, 2004, 2005 (all leg. Duelli); Nuvilly, 650 m, 2001, 2004, 2005 (all leg. Duelli); GE:Bernex/Chante- Merle, 420 m, 7.viii.2000 (leg. Merz &Bächli); Bernex/Signal, 510 m, 8.viii.2000 (leg. Merz &Bächli); Bernex/Tuilières, 430 m, 12.viii.2000; Cartigny/Moulin de Vert, 350 m, 9.viii.2000 (leg. Merz &Bächli); Chancy, 350 m, 25.vii.2004; Chancy/La Laire, 350 m, 7.viii.2000 (leg. Merz &Bächli); Jussy/Prés de Villette, 475 m, 8.viii.2000 (leg. Merz &Bächli); Russin/Biolay, 360 m, 9.viii.2000 (leg. Merz &Bächli). GL:Klöntal, 850 m, 11.–14.ix.1974; Schwändital, 1250 m, 2000, 2001 (all leg. Duelli); Vorauen, 800 m, 20.vii.1995, 4.–8.viii.1991. GR:Ardez, 1400 m, 6.viii.1996 (leg. Merz &Bächli); Dischmatal, 1.–20.viii.1991 (leg. Brodmann); Ftan/Clünas, 2000 m, 5.viii.1996 (leg. Merz &Bächli); Lantsch, 1460 m, 2000 (leg. Duelli); Lenzerheide, 1520 m, 8.viii.1998; Nationalpark, 2000 m, 2001, 2004, 2005 (all leg. Duelli); Rothenbrunnen, 630 m, 8.viii.1998 (leg. Merz & Bächli); Saas, 1100 m, 7.viii.2010; Santa Maria/Müstair/Craistas, 1850 m, 26.vi.2015; Susch/Fortezza, 1500 m, 7.viii.1996 (leg. Merz &Bächli); Tinizong, 1350 m, 2.vi.2000; Tschierv, 1700 m, 27.vi.2015; Tschlin, 1500 m, 25.vi.2016; Zernez, 1450 m, 4.viii.1996; Zernez/Gondas, 1500 m, 4.–8.viii.1996; Zuoz/Nüd, 1700 m, 7.viii.1996 (leg. Merz &Bächli). JU:Delémont, 500 m, 2.–6.viii.1974; La Chaux-des-Breuleux, 1000 m, 28.vi.2003. LU:Dierikon, 550 m, 2000, 2001, 2003, 2004 (all leg. Duelli); Ruswil, 800 m, 2000, 2001, 2004, 2005 (all leg. Duelli); Sursee, 500 m, 13.vi.2004; NE: St. Blaise/Les Rièdes, 500 m, 19.v.2001. SH:Merishausen, 540 m, 9.viii.1999; SO: Balmberg, 1050 m, 18.viii.1992; Weissenstein, 1000 m, 25.vi.2006. SO:Messen, 500 m, 7.vi.2004, 14.vi.2004, 21.vi.2004, 28.vi.2004, 5.vii.2004, 12.vii.2004, 16.viii.2004, 23.viii.2004, 30.viii.2004 (all leg. Wermelinger). SZ:Alptal, 1150 m, 2000, 2001 (all leg. Duelli); Biberbrugg, 1000 m, 25.vi.2011. TG:Lommis/Immenberg, 700 m, 4.viii.2007; Roggwil, 420 m, 2001, 2004, 2005 (all leg. Duelli). TI:Biasca, 300 m, 7.viii.1997; Bolle di Magadino, 200 m, 2000 (leg. Duelli); Cevio-Cerentino, 430 m, 15.–16.vii.1997; Fusio, 670 m, 26.vii.1997; Lucomagno, 1400 m, 3.viii.1997; Lugano, 24.vi.–5.viii.2006 (leg. Sattler); Monte San Giorgio, 1100 m, 18.vii.1995 (leg. Merz &Bächli); Ravatoi, 1350 m, 10.viii.1997; Robiei, 1900 m, 4.–5.vi.2008; Serpiano, 600 m, 22.viii.2000; Val Bavona, 600 m, 27.viii.1997. UR:Seelisberg, 810 m, 4.–7.viii.1973. VD:Changins, 430 m, 2004 (leg. Duelli); La Dôle, 1500 m, 25.vii.2004; Senarclens, 600 m, 2001, 2005 (all leg. Duelli). VS:Baltschieder, 650 m, 24.vi.2000; Grône/Poutafontana, 500 m, 1.vii.2001; Jeizinen, 1500 m, 26.vi.1999, 3.vii.2001, 10.viii.2013; Leuk/ Brentjong,1000 m, 25.vi.1999; Leuk/Platten, 600 m, 1.viii.1998 (leg. Merz &Bächli); Mörel, 735 m, 28.v.2010, 850 m, 28.v.2010, 1090 m, 28.v.2010 (all leg. Obrist); Morgins/Têtes, 1500 m, 28.vii.2004; Pfynwald, 580 m, 25.vi.1999; Visp, 650 m, 2001, 2004, 2005 (all leg. Duelli); Visperterminen, 1550 m, 4.viii.1998; 1400 m, 13.vii.1998 (all leg. Merz &Bächli); 1300 m, 30.viii.1998; 1600 m, 21.vii.2004; Zeneggen, 1400 m, 22.vi.2014. ZG:Steinhausen, 500 m, 2000, 2001, 2005, 2006 (all leg. Duelli). ZH: Dietikon, 390 m, 23.v.–12.vii.1998, 6.vi.2015; Katzensee, 440 m, 23.vii.1991; Marthalen, 390 m, 5.vi.200; Marthalen/Niderholz 390 m; 17.iv. 2006; Oetwil a. L., 450 m, 27.vii.–1.viii.1996; Rafz, 420 m, 2001, 2004, 2005 (all leg. Duelli); Uitikon, 540 m, 2000, 2004, 2005 (all leg. Duelli); Wettswil/Oelerde, 650 m, 26.vi.2011; Zürich, 450 m, 24.vi.–5.viii.2006 (leg. Sattler); Zürich/Hönggerberg, 520 m, 29.vi.2002.

Czech Republic:Borova Lada, 900 m, 26.viii.1998; Hluboka n. V., 450 m, 30.viii.1998; Val/Veseli n.L., 19.viii.1998; Veseli n.L., 450 m, 22.viii.1998. Germany:BW, Schelingen, 350 m, 28.v.2011; Berching, 26.vii.–14.viii.1988 (leg. Schacht). Liechtenstein:Ruggell, 430 m, 8.viii.1998. France: Haute-Savoie, Salève/Observatoire, 1250 m, 10.viii.2000 (leg. Merz &Bächli); Salève/Téléphérique, 1100 m, 10.viii.2000 (leg. Merz & Bächli); Rennes, 50 m, 28.viii.–1.ix.1957 (leg. Burla). Romania:Calimani, 1700 m, 27.viii.1976; 1500 m. 9.x.1987; Cimpulung, 600 m, 27.v.1980, 7.vii.1976, 10.vii.1983, 12.vii.1981, 21.vii.1982, 30.vii. 1985, 22.ix.1976, 27.ix.1976, 22.x.1981, 25.x.1980; 700 m, 25.v.1976, 9.viii.1987, 16.viii.1987; 800 m, 26.v.1983, 3.viii.1975, 7.viii.1982, 6.x.1983, 8.x.1983; 1000 m, 3.viii.1975, 6.x.1983; Cornetu, 1.iv.1981, 5.vi.1982, 10.vi.1981, 15.vi.1981, 20.vi. 1980, 2.vii.1983; Gara Jegara, 3.vi.1972; Moldovita, 800 m, 31.v.1983; Rarau, 1500 m, 4.viii.1978; Solca, 500 m, 27.vi.1980; Turda, 30.v.1986; Val. Pulnei, 900 m, 28.iv.1980, 8.vi.1976, 1.viii.1980 (all leg. Ceianu). Slovenia:Dolnya Bitnya, 400 m, 2001 (leg. Haring). Serbia:Beograd, 100 m, 2.–6.vii.1995 (leg. Keki Ć).

Distribution:Palaearctic (Ozerov 2005).

Comments:This species is particularly common on pig dung, muck hills and manure near farm-houses, but can also be caught on cow pastures at alower frequency. There are some records of swarming behavior, which is supposedly linked to hibernation (Pont 1987b), but to our knowledge such reports lack in Switzerland. As illustrated in Munari (1987), the morphology of the forefemur varies quiet drastically.