Drain Fly

 Identification and Control

Proper identification is an important first step in controlling ants.

Psychoda phalaenoides

How to Identify an 

Drain Fly

Drain flies are small, only about 1/8th of an inch long. They are very hairy and their wings are covered in fine hairs-almost moth like.

Where do they come from?

Drain flies develop in the scum lining drains and sewer lines or in decaying organic material. Larvae hide behind the scum, so treatments like boiling water, pesticides or other chemicals are ineffective. They can breed around broken pipes/drains beneath slabs or in crawl spaces. They can also enter buildings through floor cracks, etc.

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What do they look like?

Note the very hairy body and wings of the drain fly
Countless hairs cover the drain fly
Wing venation is a key way to ID a drain fly

Where do they live?

Drain flies lay their eggs in scum lining drains and sewer lines or in decaying organic material. Larvae hide behind this scum.

Name:

Psychoda phalaenoides

Size:

Small

Diet:

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