The Mygalomorphae, or mygalomorphs, are an infraorder of spiders, and comprise one of three major groups of living spiders with over 3,000 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 Dipluridae, known as curtain-web spiders are a group of spiders in the infraorder Mygalomorphae, that have two pairs of booklungs, and chelicerae (fangs) that move up and down in a stabbing motion. A number of genera, including that of the Sydney funnel-web spider (Atrax), used to be classified in this family but have now been moved to Atracidae.
Brachypelma smithi is a species of spider in the family Theraphosidae (tarantulas) native to Mexico. It has been confused with Brachypelma hamorii; both have been called Mexican redknee tarantulas. Mexican redknee tarantulas are a popular choice as pets among tarantula keepers. Many earlier sources referring to B. smithi either relate to B. hamorii or do not distinguish between the two species. B. smithi is a terrestrial tarantula native to Pacific coast of the Mexican state of Guerrero.
Acanthoscurria theraphosoides is a species of spider from the family Theraphosidae (tarantulas), found in Peru, Bolivia, Brazil, and French Guiana.
Brachypelma albiceps is a species of spider in the tarantula family, Theraphosidae. It is known as the Mexican golden red rump tarantula or the Amula red rump tarantula. The carapace is a light golden color and the abdomen dark, covered with long red hairs. Females typically live for about 15 years. Males usually live about 5 years or up to 12 months after the last molt.
Acanthogonatus is a genus of South American mygalomorph spiders in the family Pycnothelidae. It was first described by Ferdinand Anton Franz Karsch in 1880. Originally placed with the brushed trapdoor spiders, it was transferred to the funnel-web trapdoor spiders in 1985, then to the Pycnothelidae in 2020.
Chaco is a genus of spider in the family Pycnothelidae.
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.
Indothele is a genus of Asian spiders in the family Ischnothelidae. It was first described by F. A. Coyle in 1995.
Euagrus is a genus of spider in the family Euagridae. It was first described by Anton Ausserer in 1875. It has been referred to as "Evagrus", but this is a transcript error, not an accepted synonym. It is very similar to the genus Allothele, and several species have been transferred there, including Euagrus caffer, Euagrus regnardi, and Euagrus teretis.
Ischnothele, also known as scatter-web spiders is a genus of spiders in the family Ischnothelidae. It was first described by Anton Ausserer in 1875.
Tliltocatl sabulosus is a species of spider in the family Theraphosidae (tarantulas), found in Guatemala.
Pycnothele labordai is a species of South American mygalomorph spiders in the family Pycnothelidae. It is the only species in the monotypic genus Pycnothele. It was first described by F. Pérez-Miles, F. G. Costa & L. Montes de Oca in 2014 under the genus Bayana, and is found in Uruguay and Brazil. Originally placed with the funnel-web trapdoor spiders, it was transferred to the Pycnothelidae in 2020.
Anamidae is a family of Australian mygalomorph spiders. It was first described as a tribe by Simon in 1889, then raised to the subfamily Anaminae of the family Nemesiidae, before being raised to a family level by Opatova et al. in 2020.
Bemmeridae is a family of African and Asian mygalomorph spiders that was first described as the tribe Bemmereae by Eugène Simon in 1903. It was elevated to a subfamily of funnel-web trapdoor spiders (Bemmerinae) in 1985, then to its own family in 2020.
Entypesidae is a family of African mygalomorphae spiders. It was first described in 2020, and includes three genera moved from the funnel-web trapdoor spiders.
Pycnothelidae is a family of mygalomorph spiders first described in 1917. It was downgraded to a subfamily of the funnel-web trapdoor spiders in 1985, but returned to family status in 2020.
Euagridae is a family of mygalomorph spiders. The group was first described as a tribe in 1979 by Robert Raven, who in 1985 elevated it to a subfamily. In 2020, Opatova et al. elevated it further to a family.
Nemesioidina is a clade of avicularioid mygalomorph spiders proposed in 2020, based on a molecular phylogenetic analysis.
