Pschorn-Walcher , H. 1967. Biology of the ichneumonid parasites of Neodiprion sertifer (Geoffroy) [Hymenoptera: Diprionidae] in Europe. Technical Bulletin of the Commonwealth Institute of Biological Control:7-51.
Pschorn-Walcher , H. 1967. Biology of the ichneumonid parasites of Neodiprion sertifer (Geoffroy) [Hymenoptera: Diprionidae] in Europe. Technical Bulletin of the Commonwealth Institute of Biological Control:7-51.