Insects are the most diverse group of animals on Earth because they are essential to the functioning of ecosystems and the global economy. These insects are found in almost every habitat across the globe and have a significant influence on agriculture, human health, and natural resources. Insect biodiversity is facing ever-increasing threats. Climate change, the impact of pesticides, deforestation, and urbanization are the main threats to insect biodiversity. Insect decline and biodiversity loss have attracted a lot of attention in recent years, but a lack of comprehensive data, conflicting interests among stakeholders, and insufficient policy guidance hinder progress in preserving their biodiversity. As a result, the conservation of insect diversity is a global concern. According to the Secretariat report of the Convention of Biological Diversity (2020), scientists have officially described and named almost 1 million bug species. This represents only 20% of the estimated total insect population. Insects serve as pollinators, decomposers, and food sources for other animals, among other essential functions in the ecosystem. Insect biodiversity is truly exceptional because of the many different factors that contribute to their incredible diversity. Despite their importance, the majority of insect species are still poorly known and understudied despite their significance. To fully grasp the complexities and importance of insect biodiversity, it is crucial to explore the fascinating ecology of these small creatures and utilize technological advancements like remote sensing and DNA barcoding for efficient insect monitoring.