Fungus Gnat

Natural Habitat

Damp environments with decaying organic matter, such as houseplant soil, compost piles, and mulch

Diet & Feeding

Larvae primarily feed on fungi, algae, and decaying organic matter in soil, though they may also eat plant roots. Adults generally do not feed or only consume liquids like nectar.

Behavior Patterns

Adults are weak fliers and often seen 'dancing' or walking near soil surfaces. They are highly attracted to light and moisture; their life cycle from egg to adult takes about 3-4 weeks in warm conditions.

Risks & Benefits

Adults are harmless to humans as they do not bite or spread disease. However, high populations of larvae can damage the root systems of indoor plants. In the ecosystem, they aid in decomposition and serve as a food source for larger predators.

Identified on: 2/6/2026