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Flies (Phorid)
Flies (Phorid)

Flies (Phorid)


  • Color: tan, brown, or black.
  • Size: small, 1/64 to 1/4 inch.
  • Possess a “humpbacked” appearance, with a large thorax and very small head.
  • Distinctive habit of running in fast movements punctuated by sudden stops.

Habits of Phorid Flies:

  • Females deposit eggs in batches of up to 20.
  • A complete life cycle can occur in as little as 14-37 days.
  • Typical breeding sites include food residues in trash cans, deposits of decaying organic matter in cracks and crevices, and drain pipes.
  • Development can also occur in a broad range of other sites, including carrion, over-watered potted plants, unused garbage disposals, dirty mops, grease traps, and animal cages.

Damage From Phorid Flies:

  • Due to their habit of breeding in unsanitary conditions, phorid flies may spread bacteria to other surfaces.
  • The potential for rapid growth in hidden breeding sites may lead to large nuisance populations.

Look for:

  • Any organic material that stays consistently moist. This includes cracks between kitchen tiles, wet floor mops, and organic deposits in drain pipes.

How to Control and Kill Phorid Flies:

  • The breeding sites must be eliminated to control phorid fly populations.
  • Clean away all organic debris, even small deposits in cracks and crevices.
  • Unusual breeding sites, such as dirty mops should also be cleaned and dried to disrupt the phord fly life cycle.
  • Broken sewer lines below ground may also need to be fixed to achieve control.

Innovative Pest Management serves the Washington, D.C., Northern Virginia, and Maryland area. Call us at (240) 755-0077 to schedule a free quote or appointment.