Fungus Gnat

Damp environments, including wet soil in forests, bogs, and especially indoor potted plants with overwatered soil.

Larvae primarily eat fungi, organic mulch, and decaying plant matter; some may feed on plant roots. Adults generally do not feed or only consume liquids.

Weak fliers that are often seen running across soil surfaces or resting near windows. They are attracted to light and moist conditions for egg-laying.

Generally harmless to humans but can be a persistent indoor nuisance. Larvae may damage roots of young plants in high populations; they benefit ecosystems by aiding in decomposition.