Drain Flies University of Maryland Extension

Drain flies in the home are found primarily in rooms or areas where there are drains - kitchens, bathrooms, and basements near floor drains.

Drain Flies 101 - Pointe Pest Control Chicago Pest Control and Exterminator

Are Drain Flies Harmful? Debunking the Common Myths - What's That Bug?

Flies — Extension and Outreach — Department of Entomology

Whole Manual - Michigan State University: Integrated Pest

Identify and Manage Outdoor Insects

Phorid Fly University of Maryland Extension

Drain Fly Florida Environmental Pest Management

PDF) Spotted Wing Drosophila Monitoring and Management

Macrofauna » Insects » Flies - SARE

Drain Flies University of Maryland Extension

Clean Those Drains Or You Might Have Drain Flies All Over Your House - Lincoln Park - Chicago - DNAinfo