Reference
Hermann Dollfuss (2008): The Sphecini Wasps of the Genera Chilosphex BOHART & MENKE,
Isodontia PATTON, Palmodes KOHL, Prionyx VANDER LINDEN and
Sphex LINNAEUS of the "Biologiezentrum Linz"-Collection in Linz,
Austria, (Hymenoptera, Apoidea, Sphecidae) – Linzer biologische Beiträge – 0040_2: 1399 - 1434.