False Widow spider .This is the most venomous British spider and is becoming increasingly common. It’s related to the notorious Black Widow spiders and is kind of a watered down version. As well as a painful bite there can be a few system-wide symptoms like feeling unwell and even heart palpitations.
Camel (Solifugae) These terrifying creatures became infamous when American soldiers who had returned home from Iraq told of cat size spiders that could bite chunks out of human flesh. Solifugae are not actually true spiders but belong to a distinct order.