Community identification
Fungus gnat (likely)
Sciaridae, probably *Bradysia* species
- Order & Family
- Diptera; Sciaridae
- Size
- Adults are typically 1.5–4 mm long; the pictured insect appears near the lower end of this range.
Natural Habitat
Moist indoor potting soil, greenhouses, leaf litter, and other damp organic material.
Diet & Feeding
Larvae feed mainly on fungi, algae, and decaying organic matter in soil; adults mostly consume little or nothing.
Behavior Patterns
Adults are weak fliers often attracted to lights and windows. Females lay eggs in moist soil, where larvae develop before pupating and emerging as adults.
Risks & Benefits
Generally harmless to people, pets, and buildings. Larvae help decompose organic matter but can damage seedlings and roots when populations are high.