Definition
A trap-door spider is any spider belonging to various families (like Ctenizidae) that construct burrows with a hinged trapdoor. These spiders are masters of camouflage, blending their burrows seamlessly with the surrounding environment. They wait patiently beneath the trapdoor, ambushing prey. They are typically found in warm, temperate regions worldwide. While they can bite, their venom is not considered medically significant to humans. Think of them as the ninjas of the arachnid world. π₯·