Sac spider explained

The sac spiders of the family Clubionidae are nocturnal, sac-building hunting spiders with a near-worldwide distribution. Their sacs, silken retreats in which they hide during the day, may be made in a variety of places, including between folded leaves or grass blades, under bark and below rocks or other ground litter.

Although formerly a much larger catch-all taxon, in its current definition the family contains less than 700 described species across 18 genera, of which Clubiona is by far most species-rich, with 528 accepted species .[1]

Taxonomy

The Clubionidae have a complex taxonomic history. Historically, the family was a large catch-all taxon for a variety of spiders that shared the following morphological and behavioral similarities: having eight eyes arranged in two rows; having conical anterior spinnerets that touched; and being nocturnal wandering predators that build "sacs" to retreat to during the day.

A large number of genera have been transferred from Clubionidae to other families, and several former subfamilies of the Clubionidae are now treated as separate families.[2] The Zoropsidae, to which genera Anachemmis, Lauricius and Liocranoides were transferred, is much more closely related to the lynx spiders of family Oxyopidae than to the remaining Clubionidae.[3]

According to 2023 cladistic research by Siddharth Kulkarni, Hannah M. Wood and Gustavo Hormiga, the remaining Clubionidae remain polyphyletic as a result of the current placement of genus Elaver.[3]

Genera

See main article: List of Clubionidae species., the Clubionidae consist of over 665 species in 18 genera worldwide,[4] with by far the majority of species in genus Clubiona. The following genera are accepted by the World Spider Catalog:[5]

Additionally, the World Spider Catalog considers Carteroniella Strand, 1907 to be a nomen dubium.[6]

See also

External links

Notes and References

  1. Web site: Clubiona Species list . World Spider Catalog Version 25.5 . Natural History Museum Bern . 26 November 2024.
  2. Web site: Clubionidae Simon, 1878 . World Spider Catalog Version 25.5 . Natural History Museum Bern . 26 November 2024 . 2024.
  3. Kulkarni . Siddharth . Wood . Hannah M. . Hormiga . Gustavo . Advances in the reconstruction of the spider tree of life: A roadmap for spider systematics and comparative studies . Cladistics . December 2023 . 39 . 6 . 10.1111/cla.12557 . 26 November 2024 . en . 0748-3007. free .
  4. Web site: Clubionidae Simon, 1878 - Family Detail . World Spider Catalog Version 25.5 . Natural History Museum Bern . 26 November 2024.
  5. Web site: Clubionidae Simon, 1878 - Genus List . World Spider Catalog Version 25.5 . Natural History Museum Bern . 26 November 2024 . 2024.
  6. Web site: Carteroniella Strand 1907 . World Spider Catalog version 25.5 . Natural History Museum Bern . 26 November 2024.