The tiger mosquito is normally found in Southeast Asia, where moisture and heat create the perfect breeding grounds. But they’re now spreading across Europe thanks to climate change. Black with white stripes, the mosquito bites during the day — unlike other types of mosquito, which typically do so around dawn and dusk — and is most often found in urban areas and near water sources. They don’t just leave an itchy bump, either — these mosquitos have the potential to spread diseases such as dengue fever, eastern equine encephalitis, chikungunya and zika.