A lepidopterist is a scientist who studies butterflies and moths, which are both part of the order Lepidoptera. These experts focus on the biology, behavior, and ecology of these insects, often conducting field research to observe them in their natural habitats. They may also collect specimens for further study and classification. Lepidopterists contribute to our understanding of biodiversity and the role of butterflies and moths in ecosystems. Their work can help in conservation efforts, as many species are threatened by habitat loss and climate change. By studying these insects, lepidopterists play a vital role in protecting our natural world.