Fungus Gnat

Natural Habitat

Damp environments, particularly in houseplants with overly moist soil, greenhouses, and organic matter.

Diet & Feeding

Larvae primarily feed on fungi, organic debris, and plant roots; adults consume only liquid water or nothing at all during their short lives.

Behavior Patterns

Weak fliers that are often seen scurrying on soil or surfaces. They are highly attracted to light and moist habitats for egg-laying.

Risks & Benefits

Generally harmless to humans as they do not bite or sting. Large populations of larvae can damage the root systems of houseplants, but they assist in the decomposition of soil organic matter.

Identified on: 4/29/2026