Fungus Gnat
Scientific Name: Sciaridae or Mycetophilidae (various genera and species)
Order & Family: Order: Diptera, Family: Sciaridae (or Mycetophilidae)
Size: 1 to 8 mm

Natural Habitat
Damp environments, such as potting soil, decaying logs, compost piles, and areas with high humidity. Often found indoors near houseplants.
Diet & Feeding
Larvae feed on fungi, decaying plant matter, and plant roots. Adults typically do not feed or feed on liquids.
Behavior Patterns
Larval stages are detritivores, often found in decaying organic matter or under bark. Adults are generally short-lived and may or may not feed. Some species are attracted to light.
Risks & Benefits
Potential Risks: Larvae can cause damage to plant roots, especially in seedlings and young plants, leading to wilting and poor growth. They can also be a nuisance indoors. Potential Benefits: In outdoor environments, they contribute to decomposition of organic matter.
Identified on: 9/2/2025