Drain fly (moth fly), likely

Moist organic buildup in sink, shower, floor, and sewer drains; adults rest on nearby walls. The image may show adults caught in a sticky trap alongside hair and debris.

Larvae consume bacteria, fungi, algae, and decomposing organic matter in drain slime. Adults feed little, mainly on moisture and liquid organic residues.

Weak fliers, usually active around dusk and attracted to light; they reproduce in gelatinous organic films inside drains. Development from egg to adult can take roughly 1–3 weeks in warm conditions.

Generally harmless and do not bite, though heavy infestations indicate dirty or poorly draining plumbing. They provide minor decomposition services but are mainly a household nuisance.