Pullus impexus (Muls.) (coleoptera, coccinellidae), a predator of adelges piceae (Retz.) (hemiptera, adelgidae), with notes on its parasites
By: Vittorio Delucchi
Contributors: Eidgenössische Technische Hochschule Zürich
Published: 1954
Language: eng
Number of pages: 278
Notes: Thesis (doctoral)--Swiss Federal Institute of Technology Zurich, 1954.