Hymenoptera Aculeata Westfalica Familia: Sphecidae (Grabwespen) Referentie:Woydak, H., 1996. Hymenoptera Aculeata Westfalica Familia: Sphecidae (Grabwespen), 3-135.URL:https://www.lwl.org/wmfn-download/Abhandlungen/Abh_58(3)1996.pdf
