The sac spiders of the family Clubionidae have a very confusing taxonomic history. Once, this family was a large catch-all taxon for a disparate collection of spiders, similar only in that they had eight eyes arranged in two rows and conical anterior spinnerets that touched, and were wandering predators that built silken retreats, or sacs, usually on plant terminals, between leaves, under bark, or under rocks. These are now recognized to include several families, some of which are more closely related to the three-clawed spiders, like lynx and wolf spiders, than to Clubionidae and related families.
Liocranidae is a family of araneomorph spiders first described by Eugène Simon in 1897. They are one of several groups called "sac spiders". The holarctic genus Agroeca is the best-known, but it also includes various genera of more obscure spiders that still lack a diagnosis. Two species in the North American genus Neoanagraphis are found in the extremely dry conditions in the Mojave, Sonoran and Chihuahuan deserts. Females live in animal burrows while males wander and are the ones most often caught in pitfall traps.
Corinnidae is a family of araneomorph spiders, sometimes called corinnid sac spiders. The family, like other "clubionoid" families, has a confusing taxonomic history. Once it was a part of the large catch-all taxon Clubionidae, now very much smaller. The original members of the family are apparently similar only in that they have eight eyes arranged in two rows, conical anterior spinnerets that touch and are generally wandering predators that build silken retreats, or sacs, usually on plant terminals, between leaves, under bark or under rocks.
Utivarachna is a genus of Asian araneomorph spiders in the family Trachelidae first described by Kyukichi Kishida in 1940. It was largely ignored until Christa L. Deeleman-Reinhold revised the sac and ground spiders in 2001, transferring some species from Trachelas and adding several new ones. The genus was further expanded in 2014 and 2015.
Nusatidia is a genus of Asian sac spiders first described by Christa L. Deeleman-Reinhold in 2001.
Koppe is a genus of liocranid sac spiders first described by Christa L. Deeleman-Reinhold in 2001.
Oedignatha is a genus of Asian spiders first described by Tamerlan Thorell in 1881 as a genus of corinnid sac spiders, and moved to Liocranidae in 2014.
Pranburia is a monotypic genus of Southeast Asian ant mimicking corinnid sac spiders containing the single species, Pranburia mahannopi. Christa L. Deeleman-Reinhold described the first male in 1993, and the first female in 2001. It has only been found in Thailand, Cambodia, Laos, and Malaysia. The species is named after Narong Mahannop, one of the collectors of the holotype, and the genus is named after the Pranburi Province, where the male holotype was collected.
Malamatidia is a genus of Southeast Asian sac spiders first described by Christa L. Deeleman-Reinhold in 2001.
Pristidia is a genus of Asian sac spiders first described by Christa L. Deeleman-Reinhold in 2001.
Pteroneta is a genus of sac spiders first described by Christa L. Deeleman-Reinhold in 2001.
Castoponera is a genus of Southeast Asian corinnid sac spiders first described by Christa L. Deeleman-Reinhold in 2001.
Echinax is a genus of Asian and African corinnid sac spiders first described by Christa L. Deeleman-Reinhold in 2001.
Medmassa is a genus of corinnid sac spiders first described by Eugène Simon in 1887 under the name "Megaera", later renamed because "Megaera" was already in use as a synonym of the reptile genus Trimeresurus.
Sesieutes is a genus of Asian liocranid sac spiders first described by Eugène Simon in 1897. It was briefly transferred to the Corinnidae in 2013, but was returned a year later due to its similarity and relation to Phrurolithus.
Laronius is a monotypic genus of Southeast Asian ground spiders containing the single species, Laronius erewan. It was first described by Christa L. Deeleman-Reinhold in 2001, and has only been found in Thailand and in Sumatra.
Plynnon is a genus of Southeast Asian araneomorph spiders in the family Phrurolithidae, first described by Christa L. Deeleman-Reinhold in 2001. As of April 2019 it contains only three species, all from Indonesia and Borneo.
Serendib is a genus of Southeast Asian corinnid sac spiders first described by Christa L. Deeleman-Reinhold in 2001. As of April 2019 it contains only three species.
Tamin is a genus of Indonesian long-legged sac spiders first described by Christa Deeleman-Reinhold in 2001. As of April 2019 it contains only two species.
Teutamus is a genus of Southeast Asian liocranid sac spiders first described by Tamerlan Thorell in 1890.
