A sandfly is a small, flying insect belonging to the family Psychodidae. These insects are typically found in warm, humid environments, often near beaches or marshy areas. Sandflies are known for their painful bites, which can cause irritation and allergic reactions in some people. They are most active during dusk and dawn. Sandflies are also important vectors for diseases, such as leishmaniasis and sandfly fever. Their bites can transmit parasites and viruses, making them a concern for public health in certain regions. Control measures often include using insect repellent and wearing protective clothing to minimize exposure.