A breese-fly, also known as a horse-fly or cleg, is a bloodsucking insect that can be found in various regions worldwide. These insects are commonly known for their painful bites, which can cause a range of unpleasant symptoms such as swelling, itching, and sometimes even infection. Other synonyms for breese-fly include gadfly, tabanid, deer fly, and greenhead fly. While they may have different common names, all of these insects are known for their similar biting habits and can be just as irritating to animals and humans alike. If you're looking to avoid these pests, it's best to wear protective clothing, use insect repellent, and try to stay indoors during peak breeding times. While these tips won't eliminate the problem entirely, they can help to reduce your risk of being bitten and experiencing the uncomfortable symptoms associated with breese-fly bites.