Stefan Risch's scientific contributions

Citations

... After an absence of approximately thirty years, Sphex funerarius was found again in southern Germany (Schmid-Egger, et al., 1995, Schmid-Egger, 1996. Since then, it has spread quickly along the Rhine valley, with records from Alsace (Treiber, 2010), Baden-Wuerttemberg (Weiser, 2020), Rhineland-Palatine (Burger, 2011), Hassia (Tischendorf, et al., 2011) andNorth Rhine-Westphalia (Freundt, 2002). ...