''Micromesomma'' is a genus of spiders in the family

Migidae Migidae, also known as tree trapdoor spiders, is a family of spiders with about 100 species in eleven genera. They are small to large spiders with little to no hair and build burrows with a trapdoor. Some species live in tree fern stems. They have ...

. It was first described in 1895 by Pocock. , it contains only one species, ''Micromesomma cowani'', found in

Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...

References

Migidae Mygalomorphae genera Monotypic Mygalomorphae genera Spiders of Madagascar {{Migidae-stub