Recent collections and additional records of Collembola from caves in Arkansas are reported. Based on these collections and review of the literature, 35 collembolan species are known from Arkansas caves. Included in this group are 10 troglobiotic, or cave-limited, species: Lethemurus missus, Pygmarrhopalites buffaloensis, Pygmarrhopalites clarus, Pygmarrhopalites dubius, Pygmarrhopalites youngsteadtii, Pseudosinella dubia, Pseudosinella testa, Sinella barri, Sinella cavernarum, and Typhlogastrura fousheensis. Three of these species, Py. buffaloensis, Py. youngsteadtii, T. fousheensis, are endemic to Arkansas, while Ps. dubia is known only from the Ozark Plateaus Ecoregion. The remaining species are more widespread. Lethemurus missus, Ps. georgia, Ps. testa, and S. cavernarum are reported for the first time in Arkansas. On the basis of this information, revisions to the current rarity rankings for collembolan species classified as troglobionts are recommended.
Slay, Michael E. and Graening, G. O.
"Recent collections and additional records of Collembola from Arkansas caves,"
Journal of the Arkansas Academy of Science: Vol. 63
, Article 20.
Available at: http://scholarworks.uark.edu/jaas/vol63/iss1/20