👉 A housefly is a small, round, brown insect that feeds on nectar and pollen from flowers. It has long, slender legs, wingspans of about 2 to 3 inches (5.1-7.6 cm), and a body length of up to 0.8 inches (2.0 cm). The male housefly produces two eggs in the larval stage, which are then released into the environment where they can feed on nectar and pollen from various plants