Nilus decorata is a small insect belonging to the order Hemiptera. It is commonly known as the Decorated Water Bug due to its vibrant and intricate coloration. This insect is typically found in freshwater habitats, such as ponds and streams, where it feeds on aquatic plants and small invertebrates. Its body is adorned with striking patterns of bright red, yellow, and black, making it a visually captivating species.