Fungus Gnat
Scientific Name: Sciaridae (family)
Order & Family: Order: Diptera; Family: Sciaridae
Size: 2 to 8 mm in length
Natural Habitat
Damp environments with decaying organic matter, moist soil, and indoor potted plants.
Diet & Feeding
Larvae eat fungi, algae, and organic mulch (sometimes plant roots); adults consume liquids or do not feed.
Behavior Patterns
Weak flyers often found crawling on surfaces or hovering near moisture; attractted to light and high humidity.
Risks & Benefits
Harmless to humans but can be a nuisance; larvae may damage young plant roots in heavy infestations.
Identified on: 1/4/2026