This book synthesizes the extensive research on the species diversity of Ichneumonidae, offering a comprehensive overview of their host records and biological information in the Middle East and globally. It serves as an invaluable reference for entomologists, researchers in insect systematics, and professionals in agricultural biocontrol. With its detailed examination of ichneumonids, this book is also a crucial resource for those involved in crop protection and Integrated Pest Management.

Comprising 38 chapters, of which 35 of them are dedicated to a specific ichneumonid subfamily, the book provides introductory data on biology, worldwide distribution, and interrelationships among subfamilies. It meticulously lists over 2300 ichneumonid species across 35 subfamilies, complete with host records and new findings for Middle Eastern countries. This structured approach allows readers to gain a deep understanding of each subfamily's ecological role and significance.

Drawing on the latest global research, this book transcends regional boundaries, making it a must-read for anyone interested in insect systematics and agricultural biocontrol. This book will also be of great value to all those working in crop protection (especially biological control) and Integrated Pest Management. 

Dr. Hassan Ghahari is an Associate Professor of Entomology and the Head of the Plant Protection Department at the Shahre Rey Branch of the Islamic Azad University. Previously he received his MSc in Entomology of the Isfahan University of Technology and then his PhD in Entomology from the Islamic Azad University. He has published extensively on hymenopterous insects.

Dr. Neveen Gadallah is a Professor of Entomology at Cairo University. She received her PhD from Cairo University. Her research expertise is in taxonomy and classification, insect morphology, and hymenopterous insects particularly.

Dr. Scott Shaw is a Professor of Entomology and Insect Museum Curator at the University of Wyoming. He received his PhD in Systematic Entomology from the University of Maryland College Park. His research expertise includes insect biology, insect biodiversity, classification morphology, evolution, and tropical ecology.