Müller, L. & H. Kautz — Pieris bryoniae O. und Pieris napi L..

1939 xii, 191 p., 16 coloured plates with explanatory text leaves, contemporary half vellum over cloth boards with paper label on spine. Discusses the many subspecies, varieties and teratological forms of these wide-spread Piridae. A,lso published as Abh. Oesterr. Entomologen Verein. With the entomological bookplate of Walter Dietrich Stöver on the front flyleaf, and the small stamp of the malacologist and ecologist Herbert Ant. A good copy.