A venomous spider(Loxosceles reclusa) having an hourglass-shaped mark on the cephalothorax, introduced into the southern United States from South America.

• 褐皮隐居蛛：一种毒蜘蛛（褐皮隐居蛛），头胸部有更漏状印记，从南美洲引入美国南部