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.
Fluctus is a small genus of east Asian corinnid sac spiders. It was first described by C. Jin and F. Zhang in 2020, and it has only been found in China. As of November 2021 it contains only two species: F. bannaensis and F. tengchongensis.
Wasaka is a genus of African corinnid sac spiders first described by C. R. Haddad in 2013.
Trachelidae is a family of araneomorph spiders first described by Eugène Simon in 1897 as a subfamily called "Tracheleae". The Trachelidae family, also known as "ground sac spiders", is within the group of spiders known as the RTA clade, which includes mostly wandering spiders that do not use webs. Spiders in the Trachelidae family are characterized as being 3-10mm long and having a red cephalothorax and a yellow/tan abdomen. They are commonly found indoors. It was placed in the family Clubionidae, then later in Corinnidae when the Clubionidae were split up. The first study that suggested Trachelidae should be considered its own family was done by Deeleman-reinhold in 2001 as part of an analysis of RTA Clade spiders. An analysis by Martín J. Ramírez in 2014 suggested that it was not closely related to other members of the Corinnidae, and was better treated as a separate family. It was then placed in the CTC clade of spiders, or the Claw Tuft Clasper clade, which is a group of spiders that have two tarsal claws with tufts of hair.
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.
Coenoptychus is a genus of African and Asian corinnid sac spiders first described by Eugène Simon in 1885. As of April 2019 it contains only three species, two of which were transferred from Graptartia in 2018.
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.
Orthobula is a genus of araneomorph spiders first described by Eugène Simon in 1897 as a member of Liocranidae. It was transferred to Corinnidae in 2002, to Phrurolithidae in 2014, and to Trachelidae in 2017.
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.
Austrophaea is a monotypic genus of African corinnid sac spiders containing the single species, Austrophaea zebra. It was first described by R. F. Lawrence in 1952, and has only been found in South Africa.
Castoponera is a genus of Southeast Asian 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.
Dictis is a genus of spitting spiders that was first described by Ludwig Carl Christian Koch in 1872.
Siamspinops is a genus of Asian wall spiders that was first described by P. Dankittipakul & J. A. Corronca in 2009. It was merged with the monotypic genus Pakawops in 2019.
Abdosetae is a genus of Asian araneomorph spiders in the family Phrurolithidae, first described by J. Y. Fu, F. Zhang & J. MacDermott in 2010.
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.
Spinirta is a genus of east Asian corinnid sac spiders. It was first described by C. Jin and F. Zhang in 2020, and it has only been found in China.
