"Xylocopa of India" is a comprehensive exploration of the taxonomy, biology, behaviour, and ecological significance of the large carpenter bees (Xylocopa spp.) found in the diverse landscapes of India, with a particular focus on the Northwestern Himalayan region encompassing Jammu & Kashmir and Ladakh. The book comprises ten chapters, each delving into different aspects of the biology and ecology of these fascinating insects. The first chapter, "Taxonomy and Classification," provides an in-depth overview of the taxonomy and classification of Xylocopa spp., elucidating the morphological characteristics and phylogenetic relationships within the subfamily Xylocopinae. It serves as a foundational guide for understanding the systematic arrangement of these bees. Chapter 2, "Morphology and Anatomy," explores the anatomical features and morphological adaptations of large carpenter bees, offering insights into their structural attributes and physiological functions. This chapter serves as a valuable resource for researchers and enthusiasts interested in the intricate anatomy of these insects. "Life Cycle," the third chapter, delves into the various stages of the life cycle of Xylocopa spp., from egg to adult, elucidating the developmental processes and behavioural patterns associated with each life stage. This chapter provides a comprehensive overview of the life history of these bees. Chapter 4, "Behaviour and Ecology," investigates the behavioural repertoire and ecological interactions of large carpenter bees, shedding light on their nesting behaviour, foraging habits, and roles as pollinators in diverse ecosystems. It explores the intricate web of ecological relationships that shape the lives of these insects. The fifth chapter, "Habitat and Distribution," examines the habitat preferences and geographical distribution of Xylocopa spp. across India, with a focus on the Northwestern Himalayan region. It provides valuable insights into the ecological requirements and spatial dynamics of these bees. In "Ecological Significance," Chapter 6, the ecological roles and contributions of large carpenter bees to ecosystem functioning are explored, highlighting their importance as pollinators and their interactions with flowering plants and other organisms. "Human Interaction," Chapter 7, delves into the complex interplay between humans and Xylocopa spp., addressing issues of human-wildlife conflict, habitat degradation, and conservation challenges faced by these bees in the face of anthropogenic pressures. Chapter 8, "Field Identification," offers practical guidance and tools for field identification of Xylocopa spp., equipping researchers, naturalists, and conservationists with the necessary skills to accurately identify these bees in their natural habitats. "Research and Discoveries," Chapter 9, showcases recent research findings and discoveries related to large carpenter bees, highlighting advances in understanding their biology, behaviour, and ecological roles. The final chapter, "Diversity of Xylocopa spp.," presents experimental research findings on the diversity and distribution of Xylocopa spp. in the Northwestern Himalayan region, offering insights into their taxonomic diversity, genetic relationships, and ecological significance. This chapter culminates in a comprehensive conclusion summarizing key findings and implications for future research and conservation efforts.