Bug Identifier
Fungus Gnat
Community identification

Fungus Gnat

Sciaridae family

Order & Family
Order: Diptera; Family: Sciaridae
Size
2 to 8 mm (approximately 1/16 to 1/4 inch) in length.
See this bug in the Encyclopedia

Natural Habitat

Damp environments high in organic matter, such as potted plant soil, greenhouses, and moist interiors.

Diet & Feeding

Larvae primarily feed on fungi, algae, and decaying plant matter in the soil; adults typically do not feed or only consume liquids.

Behavior Patterns

Adults are weak fliers often seen 'dancing' or running across surfaces. They are highly attracted to light and moisture. Life cycle from egg to adult is about 3-4 weeks.

Risks & Benefits

Generally harmless to humans but can be a nuisance. In large numbers, larvae may damage plant roots and transmit fungal diseases to indoor plants.