you’ve probably seen plenty of flies but have you ever seen a fly bigger than a bee like the horsefly typically when people catch a horsefly they pull off its wings because tar ranchers horseflies are nothing but pests horseflies Survive by feeding on the blood of various mammals with farm animals like sheep cattle and horses being their main targets however the truly terrifying thing about horseflies isn’t just that they suck blood what’s even scarier is that they lay eggs on their hosts