Drain Fly

Drain Fly

FUNGUS GNAT/DRAIN FLY: (Sciara thomae)

2 to 5mm


Small insect with a wingspan of 14-15mm. Black head, thorax and abdomen. Thorax has humped appearance.


In overwatered pot plants in homes and workplaces.

Likely Found:

Feed on plant roots and fungi/mould.


Very hardy fly – can survive freezing.

Control Measures:

Re-pot plants and feed/water from the base only – sometimes a local insecticide can be applied to the soil that plants are in.

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