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Parobisium yosemite

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Species of pseudoscorpion

Parobisium yosemite
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Pseudoscorpiones
Family: Neobisiidae
Genus: Parobisium
Species: P. yosemite
Binomial name
Parobisium yosemite
Cokendolpher & Krejca, 2010

Parobisium yosemite, or the Yosemite cave pseudoscorpion, is a species of pseudoscorpion in the family Neobisiidae. A troglobite, the pseudoscorpion inhabits talus caves, formed by voids between boulders, in Yosemite National Park.

Distribution

The species is endemic to granite talus caves in Yosemite National Park in California, United States. The type specimens were found in two caves less than 0.5 kilometres (0.31 mi) within one the single scree. As the talus caves it inhabits are likely only a few hundred years old, it is thought that the pseudoscorpions migrate between different talus slopes and caves.

Description

Like other troglofauna, P. yosemite is blind with absent posterior eyes and a lack of a tapetum lucidum, and displays unusual pigmentation. The pseudoscorpion is potentially the first North American troglobite documented in a talus cave.

Ecology

P. yosemite has been observed preying on Sinella springtails. It may also potentially prey on other invertebrates in its cave environment, including mites, spiders, beetles and ants.

Etymology

The species' namesake is Yosemite National Park.

References

  1. "Parobisium yosemite". Integrated Taxonomic Information System.
  2. ^ "Pseudoscorpion: Unique to Yosemite – Yosemite National Park (U.S. National Park Service)". www.nps.gov. U.S National Park Service. Retrieved 21 July 2024.
  3. ^ Cokendolpher, James C.; Krejca, Jean K. (30 September 2010). "A new cavernicolous Parobisium Chamberlin 1930 (Pseudoscorpiones: Neobisiidae) from Yosemite National Park, U.S.A". KIP Articles. Occasional papers. Museum of Texas Tech University. doi:10.5962/bhl.title.156953. Retrieved 21 July 2024.
  4. Phil Chapman (1982). "The Origins of Troglobites" (PDF). Proceedings of the University of Bristol Spelæological Society. 16 (2): 133–141.

External links

Taxon identifiers
Parobisium yosemite


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