Welcome to Drain-Flies.com, the most comprehensive online resource dedicated to the insect commonly known as the drain fly. Also referred to as the drain moth, moth fly, or sewer fly, this tiny insect belongs to the family Psychodidae and has fascinated entomologists and frustrated homeowners alike for decades.
Unlike practical “how-to” guides, this site is designed as an encyclopedia and glossary—a structured reference where you can learn about every aspect of drain flies, from their anatomy and lifecycle to their behavior and ecological role. Whether you are a student, pest control professional, or simply curious about the small moth-like insects in your sink, you’ll find reliable, science-based knowledge here.
What You’ll Find Here
- Detailed Biology & Identification – Learn how to recognize drain flies at every stage of their life.
- Lifecycle Explained – From egg to larva to adult, understand how these insects survive in drains and sewers.
- Habitats & Behavior – Explore where they live, how they move, and why they appear indoors.
- Glossary of Terms – A growing A–Z index of key entomological terms and drain fly–related concepts.
- History & Science – Discover their taxonomy, ecological significance, and role in scientific research.
- FAQs – Clear answers to the most common questions about moth flies and sewer flies.
Looking for Control and Prevention Tips?
This site focuses on knowledge and education. If you are dealing with an infestation and want step-by-step instructions on how to get rid of drain flies safely and effectively, please visit our partner site:
👉 Get Rid Of Drain Flies – the ultimate guide to drain fly removal and prevention.
About the Author
Drain-Flies.com was created by Parker Stone, a Board Certified Entomologist (BCE), CP-FS, and PCQI, with an Entomology degree from The University of Arizona. Parker specializes in integrated pest management (IPM) and sustainable pest control methods, combining academic expertise with years of consulting for both residential and agricultural clients.
His mission with this site is simple: to provide the most authoritative, science-backed encyclopedia of drain flies available online.