👉 Fly fluid, also known as hypodermic or vitelline fluid, is a clear, watery substance produced by the fly's reproductive system. It serves as a nutrient-rich medium for the developing larvae, providing essential proteins, lipids, and other nutrients necessary for their growth and development. This fluid also acts as a protective barrier against pathogens, helping to shield the larvae from infections. Additionally, fly fluid contains enzymes that aid in breaking down the host's tissues, facilitating larval feeding and development. Once the larvae mature, they excrete this fluid, which can sometimes be observed as a sticky, yellowish residue around the fly's body or in its environment.
