Fungus Gnat Larma

Natural Habitat

Found in damp soil, decaying plant material, and often in the potting soil of overwatered houseplants.

Diet & Feeding

Feeds primarily on fungi, algae, and decaying organic matter in the soil; will also eat tender plant roots if organic matter is scarce.

Behavior Patterns

Larvae live in the top few inches of moist soil, often leaving shiny slime trails like tiny slugs. They develop through four instars before pupating.

Risks & Benefits

Risks: Can damage seedlings and houseplants by eating roots; can stunt plant growth. Benefits: Aids in decomposition of organic matter in wild ecosystems.

Identified on: 3/5/2026