caption: The image shows a hoverfly perched atop a rock in the mud, surrounded by algae. The hoverfly has a long, slender body with a yellow and black striped pattern, and its wings are spread out as if it is about to take flight. Its antennae are long and thin, and it has a black and white striped pattern on its wings. The rock it is perched on is a deep purple color, and the algae is a vibrant green.