Migidae is a family of spiders with about 90 species in 10 genera, known as tree trapdoor spiders. They have a Gondwanan distribution and occur almost exclusively on the Southern Hemisphere. They are small spiders with rather little hair. They build burrows with a trapdoor. Some species live in tree fern stems. Tree trapdoor spiders occur in South America, Africa and Australia, Madagascar, New Zealand and New Caledonia.