Size: Cluster flies are typically larger than house flies, with a body length of 6-10 mm. House flies, on the other hand, are typically 5-7 mm long.
Color: Cluster flies are usually dark gray or black in color, with a metallic sheen. House flies are usually black, brown, or gray, and they have a more mottled appearance.
Wings: Cluster flies have small, triangular-shaped wings that are held flat against their bodies when at rest. House flies have larger, rounded wings that are held at a slight angle when at rest.
Behavior: Cluster flies are known for their habit of clustering together in large numbers, especially in the fall. House flies are more likely to be found flying around individually.
Habitat: Cluster flies are often found in rural areas, near livestock or other animals. House flies are more common in urban areas, near human habitation.
Diet: Cluster flies feed on nectar and other sweet substances. House flies are omnivorous, and they feed on a variety of foods, including human food, animal waste, and garbage.
Reproduction: Cluster flies lay their eggs in clusters on leaves or other surfaces. House flies lay their eggs in small clusters or individually on moist surfaces, such as garbage, manure, or rotting food.
Lifespan: Cluster flies typically live for about 30 days. House flies can live for up to 30 days, but they typically only live for about 2 weeks.