Drain Flies
Active Seasons




Appearance and Size Facts
- Brown or black in color
- Their body and wings are densely covered with hairs, which gives them a fuzzy appearance
- Frequently mistaken for small moths since the wings are held roof-like over the body when at rest
- Common name is moth fly
- Size: Range from 1/6 to 1/4 inch in length
Behavior and Habitat of Drain Flies
Drain flies are often associated with drains and are common at sewage treatment facilities. They are weak fliers and often appear to be jumping or hopping. Flight and mating activities normally occur in the evening hours when they are attracted to lights. Each female can produce around 100 eggs and under optimum conditions development can be completed in about 2 weeks. Drain flies may be found around bathrooms or kitchen sinks. They are common around wet areas and can even breed in sink and bathroom drain traps, in spite of the hot water, soap, and other debris that flow through them.

Signs of Infestation of Drain Flies
Moth flies can be seen actively flying around sink drains in bathrooms and kitchens, or from garbage disposals. Flies will also be noticed on walls inside of the home, resting nearby the breeding site.

Tips for Prevention of Drain Flies
For drain fly management, contact a professional pest management company, such as Hulett Environmental Services, to remove the breeding material in the drain.

Drain Fly Gallery




Latest Pest & Termite Control News

Subterranean Termite Control in West Palm Beach: Sentricon Colony Elimination
Mar 09, 2023—Florida Termites
Here in Palm Beach County and our northern neighbors in the Treasure Coast, including subterranean termite prevention and control as a part of your general home maintenance plan is essential. This is especially true in West Palm Beach, which was named in the “Top 10 Worst Termite...
Read More ›
New Year Pest Control Resolutions for Your South Florida Home
Dec 19, 2022—Rodents, Pest Control, Rodents
A new year means new pests are trying to call your South Florida house their home. This year, along with new year’s resolutions to improve your health, finances, attitude, and whatever other things you want to change in your life, make this year the year you keep your South Florida home...
Read More ›
Expert Advice on Protecting Your Home and Lawn from Pests this Winter
Dec 08, 2022—Florida Lawn Care
Living in South Florida means rodents, ants, and other pests don't take the winters off! Meanwhile, your lawn needs less watering and mowing during the winter months and is susceptible to various diseases such as brown patch fungus. Your lawn in winter While we’re outdoors, let’s talk...
Read More ›