Yes, some flies do bite.
Understanding Biting Flies
While not all flies bite, certain species have developed the capability to pierce skin and draw blood. These flies have mouthparts adapted for this purpose. The reference notes:
A fly has mouthparts designed to suck up liquids and for piercing, if the fly is one that bites other animals.
These biting flies target humans and other animals by using their senses to detect cues such as:
- Carbon Dioxide: They are attracted to the carbon dioxide in exhaled breath.
- Moisture: The moisture in breath and perspiration draws them in.
- Dark Colors and Movement: These visual cues help them locate potential hosts.
- Warmth: Body heat is another attractant for these flies.
- Perspiration: The chemical components of sweat can attract biting flies.
Types of Biting Flies
Here are some common biting fly types:
- Mosquitoes: Often mistaken for flies, mosquitoes are a type of fly that primarily feed on blood.
- Horse Flies: Known for their painful bites, horse flies are larger and have strong mouthparts.
- Deer Flies: Similar to horse flies, deer flies are aggressive biters.
- Black Flies: These small flies often attack in swarms and can leave itchy welts.
- Sand Flies: Typically found near bodies of water, they can transmit diseases through their bites.
Fly Bites vs. Non-Biting Flies
It's essential to differentiate between flies that bite and those that don’t. Many common flies like house flies and fruit flies do not bite. Instead, they rely on sucking up liquids using their sponge-like mouthparts.
Dealing with Biting Flies
- Use insect repellents containing DEET or picaridin.
- Wear light-colored clothing, which is less attractive to biting flies.
- Avoid areas known to have high populations of biting flies, especially during peak activity periods.
- Use screens on windows and doors to prevent flies from entering your home.
Summary
In conclusion, some flies do bite, using their specialized mouthparts to pierce skin and feed on blood. They are attracted by carbon dioxide, moisture, movement, dark colors, and warmth. Common biting flies include mosquitoes, horse flies, deer flies, black flies, and sand flies, while flies like house flies and fruit flies are non-biting.
