The lifespan of a housefly is generally 15 to 30 days, depending on temperature and living conditions. The life cycle of a housefly consists of four stages: egg, larva, pupa, and adult. Females can lay up to five to six batches of eggs, with each batch containing around 100 eggs. After completing its pupal development, an adult housefly emerges with an expected lifespan ranging from 15 to 30 days, depending on various factors such as temperature or availability of food sources. Adult houseflies have a limited existence, and the duration of their lifespan is contingent on various factors such as temperature, food availability, and region. Although houseflies are more active in the summer, they reproduce year-round.