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Parobisium yosemite
Parobisium yosemite, or the Yosemite cave pseudoscorpion, is a species of pseudoscorpion in the family Neobisiidae.[1] A troglobite, the pseudoscorpion inhabits talus caves, formed by voids between boulders, in Yosemite National Park.[2] DistributionThe species is endemic to granite talus caves in Yosemite National Park in California, United States.[3] 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. DescriptionLike other troglofauna,[4] P. yosemite is blind with absent posterior eyes and a lack of a tapetum lucidum, and displays unusual pigmentation.[2] The pseudoscorpion is potentially the first North American troglobite documented in a talus cave.[3] EcologyP. 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.[2] EtymologyThe species' namesake is Yosemite National Park.[2] References
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