Trapdoor spider

Trapdoor Spiders are members of the spider family Ctenizidae. They dig a small burrow in the forest floor, and covers it with a dirt trapdoor.The spider lurks in its burrow with the door half-open, until something to eat walks by without knowing that the spider is watching. Then the trapdoor spider pounces, drags the prey into its trap, and slams the trapdoor shut. 

 References 

Category:Mygalomorphae