A catalogue and reference volume of the species diversity of the Chalcidoidea (an important diverse group of parasitic wasps used in biological control of crop pests) based on little known records from Iran and 15 neighbouring countries. It is an invaluable source of information for all those interested in Chalcidoidea and those working in crop protection (especially biological control) and Integrated Pest Management.

Contributions by: Shaaban Abd-Rabou, Christopher Darling, Mikdat Doganlar, Klarissa Alekseyevna Dzhanokmen, Victor Nikolaevich Fursov, Emilio Guerrieri, M Hayat, Jian Huang, Petr Janšta, Svetlana Nikolaevna Myartseva, José Luis Nieves-Aldrey, Bernard Pintureau, Irinel Eugen Popescu, Emilian Pricop, Christian Schmid-Egger, Javier Torréns, Simon van Noort, Vladimir Alexandrovich Trjapitzin, Zoya Alexandrovna Yefremova, Jeong Yoo, Marina Dmitrievna Zerova