The Mygalomorphae, or mygalomorphs, are an infraorder of spiders, and comprise one of three major groups of living spiders with over 3000 species, found on all continents except Antarctica. Many members are known as trapdoor spiders due to their creation of trapdoors over their burrows. Other prominent groups include Australian funnel web spiders and tarantulas, with the latter accounting for around one third of all mygalomorphs.
The family Cyrtaucheniidae, known as wafer-lid trapdoor spiders, are a widespread family of Mygalomorphae spiders.
Microstigmatidae is a small family of spiders with about 25 described species in eight genera. They are small ground-dwelling and free-living spiders that make little use of silk.
Envia garciai is a small (3 mm) pale yellow species of mygalomorph spider from Brazil. It is one of only two described species in the genus Envia.
Nemesiidae, also known as funnel-web trapdoor spiders, is a family of mygalomorph spiders first described by Eugène Simon in 1889, and raised to family status in 1985. Before becoming its own family, it was considered part of "Dipluridae".
Microstigmata is a genus of spiders in the family Microstigmatidae. All species are from South Africa.
Micromygale is a genus of spiders in the family Microstigmatidae containing the sole species Micromygale diblemma. The species was described in 1982 by Platnick and Forster and is found in Panama.
Pseudonemesia parva is a species of spider in the family Microstigmatidae. It was described by Caporiacco (1955) in Venezuela.
Envia is a spider genus in the family Microstigmatidae, found only in Brazil.
Pseudonemesia is a genus of spiders in the family Microstigmatidae, found in Colombia and Venezuela.
Stenoterommata is a genus of South American araneomorph spiders in the family Pycnothelidae. It was first described by E. L. Holmberg in 1881. Originally placed with the Ctenizidae, it was transferred to the funnel-web trapdoor spiders in 1985, then to the Pycnothelidae in 2020. It is a senior synonym of Ctenochelus.
Spelocteniza is a genus of spiders in the family Microstigmatidae. It was first described in 1982 by Gertsch. As of 2017, it contains only one species, Spelocteniza ashmolei, which is found in Ecuador.
Xenonemesia is a genus of spiders in the family Microstigmatidae. It was first described in 1989 by Goloboff. As of 2016, it contains 3 South American species.
Ixamatus is a genus of spiders in the family Microstigmatidae. It was first described in 1887 by Simon. As of 2017, it contains 10 Australian species.
Xamiatus is a genus of spiders in the family Microstigmatidae. It was first described in 1981 by Raven. As of 2017, it contains 5 species from Australia that are found in Queensland and New South Wales.
Angka hexops is a species of Southeast Asian spiders in the family Microstigmatidae. It is the only species in the monotypic genus Angka. It was first described by Robert Raven & Peter J. Schwendinger in 1995, and has only been found in Thailand.
Kiama lachrymoides is a species of spiders in the family Microstigmatidae. It was first described in 1969 by Main and Mascord. As of 2017, it is the sole species in the genus Kiama. It is found in New South Wales.
Avicularioidea is a clade of mygalomorph spiders, one of the two main clades into which mygalomorphs are divided. It has been treated at the rank of superfamily.
Tonton is a genus of South American mygalomorph spiders in the family Microstigmatidae. It was first described by V. Passanha, I. Cizauskas and Antônio Domingos Brescovit in 2019, and it has only been found in Brazil.
