Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Chelicerata
Classis: Arachnida
Ordo: Araneae
Subordo: Opisthothelae
Infraordo: Mygalomorphae
Superfamilia: Ctenizoidea
Familiae (2): Ctenizidae – Halonoproctidae – Stasimopidae
Vernacular names
català: Ctenizoïdeu
English: Trapdoor Spider
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Ummidia sp.
Trapdoor spider is a common name that is used to refer to various spiders from several different groups that create burrows with a silk-hinged trapdoor to help them ambush prey.
Several families within the infraorder Mygalomorphae contain trapdoor spiders:
Actinopodidae, a family otherwise known as 'mouse-spiders', in South America and Australia
Antrodiaetidae, a family of 'folding trapdoor spiders' from the USA and Japan
Barychelidae, a family of 'brush-footed trapdoor spiders' with pantropical distribution
Ctenizidae, a family of 'cork-lid trapdoor spiders' in tropical and subtropical regions
Cyrtaucheniidae, a family of 'wafer-lid trapdoor spiders, with wide distribution except cooler regions
Euctenizidae, a family of spiders that make wafer-like or cork-like trapdoors
Halonoproctidae, a family of spiders that make wafer-like or cork-like trapdoors and includes the phragmotic genus Cyclocosmia
Idiopidae, a family of 'spurred-trapdoor spiders' or 'armoured trapdoors' mostly in Southern Hemisphere
Migidae, also known as 'ridge fanged trapdoor spiders' or 'tree trapdoor spiders', in the Southern Hemisphere
Nemesiidae, a family of 'tube trapdoor spiders', with both tropical and temperate species worldwide
Theraphosidae, a family of tarantulas (where just a few species make trapdoors), also with wide distribution
There is also one family of trapdoor spiders in the suborder Mesothelae:
Liphistiidae, an unusual and unique family of spiders with armoured abdomens from Southeast Asia, China and Japan
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