Drain fly (or Moth fly)

Damp environments rich in organic matter, such as drains, septic systems, sewers, and kitchens.

Larvae feed on the organic slime/biofilm in drains; adults primarily consume liquid carbohydrates.

Poor fliers that often crawl on walls near drains. They breed in the gelatinous film that forms in plumbing.

They do not bite or transmit diseases but are considered nuisance pests; they can signify plumbing issues or poor drainage.