A horsefly bite, caused by a fly of the Tabanidae family, is painful but usually harmless, causing a raised, red area of skin known as a weal. Uncomplicated cases can usually be treated at home ...

As the weather warms up the UK is often swarmed with reports of biting horseflies. A Museum fly expert explains what is going on. Often large, persistent and painful, a bite from a horsefly is an ...