Fungus Gnat

Natural Habitat

Damp environments, particularly in soil rich in organic matter, houseplants, or mulch.

Diet & Feeding

Larvae feed on fungi, algae, and organic debris in the soil; adults typically do not feed or consume liquid nutrients like nectar.

Behavior Patterns

Weak fliers that often stay near the soil surface. They have a short lifespan of about one week as adults, following a larval stage in moist substrate.

Risks & Benefits

Generally harmless to humans but can be a nuisance indoors. High larval populations may damage plant roots, while they benefit the ecosystem by breaking down organic matter.

Identified on: 6/14/2026