Bathroom-pest
Guides
Clogmia albipunctata
Bathroom Moth Fly, Drain Fly, Filter Fly, Bathroom Moth Midge, Sewer Gnat, Sink Fly
Clogmia albipunctata is a small, non-hematophagous moth fly in the family Psychodidae with worldwide distribution in tropical and temperate regions. Adults measure 2.2–2.5 mm in body length with distinctive broad, hairy wings marked by black spots near the middle and white spots along the edges. The species is strongly associated with human dwellings, particularly bathrooms and kitchens, where larvae develop in moist, decaying organic matter within drains. Adults are weak fliers that rarely move from walls and live approximately 12 days. Though historically reported as a myiasis agent, critical review of evidence finds no incontestable documentation of true parasitism; reported cases typically involve facultative infestation of pre-existing cavities with decaying material rather than tissue invasion.