A moth fly is also known as which of the following?

• A. Drain fly
• B. Fruit fly
• C. Housefly
• D. Filter fly

Answer: (D)

Moth flies are tiny, fuzzy-winged flies that tend to swarm around damp, organic-rich places like drains. They breed in the slimy film inside drain pipes and around wet filtration surfaces, so they’re also called drain flies or filter flies. The name filter fly fits well because it highlights their association with drain filters and similar moist filtration areas. They’re not the same as fruit flies, which are drawn to fermenting fruit, or houseflies, which are larger and a more general nuisance. For control, focus on cleaning drains, removing organic buildup, and using cleaners that break down the accumulated material the larvae feed on.