Cover -- Title Page -- Copyright Page -- Dedication -- Acknowledgments -- Contents -- Introduction: Seven Wonders of the Insect-Fungus World -- Part I. Fungi Acting against Insects -- 1. Phylogenetics of the Insect Pathogenic Genus Beauveria -- 2. Phylogeography of Metarhizium, an Insect Pathogenic Fungus -- 3. Interactions between Entomopathogenic Fungi and Arthropod Natural Enemies -- 4. Ecology and Evolution of Fungal Endophytes and Their Roles against Insects -- 5. The Fungal Roots of Microsporidian Parasites -- 6. Fungal Biotrophic Parasites of Insects and Other Arthropods -- Part II. Fungi Mutualistic with Insects -- 7. Reciprocal Illumination: A Comparison of Agriculture in Humans and in Fungus-growing Ants -- 8. Evolutionary Dynamics of the Mutualistic Symbiosis between Fungus-Growing Termites and Termitomyces Fungi -- 9. The Role of Yeasts as Insect Endosymbionts -- 10. The Beetle Gut as a Habitat for New Species of Yeasts -- 11. Ecology and Evolution of Mycophagous Bark Beetles and Their Fungal Partners -- Conclusion: Symbioses, Biocomplexity, and Metagenomes -- Index.