Trapdoor spider IMG 0271A - This far from attractive Australian arachnid has a unique way of catching its prey. It digs a burrow in the soil and creates a lid of particles of soil that are held together by silken thread. The spider feeds on insects that either fall into the open hole or that it grabs as they wander past. Females, which may live for up to 20 years, spend their entire lives in the burrow. Males, on reaching maturity, leave the security of the burrow to mate, and die shortly afterwards. Although trapdoor spiders will give a painful bite if provoked, they are non-venomous and pose no threat to humans.