Which of the following statements about moth flies is TRUE?

Moth flies, scientifically known as Psychodidae, are commonly referred to as drain flies due to their frequent association with decaying organic matter, especially in moist environments like drains, sink corners, and sewage systems. This designation highlights their typical habitat and breeding grounds, which are often rich in organic matter, providing an ideal environment for their larvae to thrive.

Understanding the ecological preferences and behaviors of moth flies reveals why the other statements do not accurately represent these insects. For example, they do not belong to the Cerambycidae family, but rather to the Psychodidae family. Additionally, their presence is typically associated with unsanitary conditions rather than clean environments, as they thrive in areas with stagnant water and decaying matter. Moreover, moth flies are not known for breeding in dry areas; they require moist habitats for their lifecycle. This reinforces the truth behind the identification of moth flies as drain flies, underscoring their role in the ecosystem associated with waste and moisture.