Physocyclus is a genus of cellar spiders that was first described by Eugène Louis Simon in 1893.
Coneweb spiders (Diguetidae) are six-eyed haplogyne spiders that live in tangled space webs, fashioning a cone-like central retreat where they hide and lay eggs. It is a small family, containing only two genera with fifteen species and is confined to the New World, preferring deserts. Members of the genus Diguetia usually build their webs in shrubs or between cactus pads. They have the same eye arrangement as the venomous recluse spiders, but none are known to be harmful to humans.
Nesticus is a genus of American and Eurasian scaffold web spiders first described by Tamerlan Thorell in 1869.
Tibellus is a genus of slender crab spiders described by Simon in 1875, belonging to the order Araneae, family Philodromidae. Species of this genus are present in Eurasia, Africa, Americas and Australia.
Ebo is a genus of running crab spiders that was first described by Eugen von Keyserling in 1884.
Kibramoa is a genus of North American plectreurid spiders that was first described by Ralph Vary Chamberlin in 1924.
Phrurolithidae is a family of araneomorph spiders first described by N. Banks in 1982. First included in the Corinnidae as the subfamily Phrurolithinae, later phylogenetic studies justified a separate family.
Euagrus is a genus of curtain web spiders that 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
Phantyna is a genus of cribellate araneomorph spiders in the Dictynidae family, and was first described by R. V. Chamberlin in 1948.
Filistatinella is a genus of North American crevice weavers that was first described by Willis J. Gertsch & Wilton Ivie in 1936. They are 1.5 to 3.5 metres long, and have a dark brown abdomen, longer than wide, with a few gray scales.
Chisoneta is a genus of North American Leptonetids that was first described by J. Ledford in 2011.
Pholcophora is a genus of cellar spiders that was first described by Nathan Banks in 1896.
Eulaira is a genus of North American dwarf spiders that was first described by Ralph Vary Chamberlin & Vaine Wilton Ivie in 1933.
Grammonota is a genus of dwarf spiders that was first described by James Henry Emerton in 1882.
Hentziectypus is a genus of comb-footed spiders that was first described by Allan Frost Archer in 1946. Originally placed with Theridion, it was moved to Achaearanea in 1955, and to its own genus in 2008. These spiders most resemble members of Cryptachaea, but are distinguished by a median apophysis that is broadly attached to the tegulum. Spiders of Parasteatoda have a median apophysis attached to the embolus, while those of Achaearanea have a hooked paracymbium on the pedipalps of males.
Mecaphesa is a genus of crab spiders that was first described by Eugène Louis Simon in 1900.
Apollophanes is a genus of running crab spiders that was first described by Octavius Pickard-Cambridge in 1898.
Piabuna is a genus of North American araneomorph spiders first described by R. V. Chamberlin & Wilton Ivie in 1933. Originally added to the Liocranidae, it was moved to the Corinnidae in 2002, then to the Phrurolithidae in 2014.
