Overview
Fannia Flies, also known as Lesser House Flies, are small nuisance flies commonly found in homes, farms, and animal facilities. They are closely related to house flies but differ in size, behavior, and flight patterns. These flies are known for their distinctive hovering behavior, often seen circling in indoor spaces.
Although they are less likely to transmit disease than house flies, they can still contaminate surfaces and become a persistent annoyance when populations are high.
Identification
- Small, slender gray flies
- Distinct circular hovering flight pattern
- Less robust than common house flies
- Often found near ceilings or light sources
Habitat
Fannia flies are commonly found in areas with decaying organic matter, including manure, compost, and damp waste. They are frequently encountered in barns, poultry houses, and residential kitchens.
Behavior and Impact
These flies are known for their erratic indoor flight, often forming loose swarms. While not aggressive, their presence can be irritating and unsanitary.
They may contaminate food and surfaces, making them a concern in kitchens and food preparation areas.
Prevention and Control
Good sanitation is the most effective control strategy. Removing breeding sources, sealing entry points, and improving ventilation can help reduce populations.