Excerpt: Phoretic behavior involving a non-parasitic association of a larger animal by a smaller animal resulting in transportation is well-documented in some pseudoscorpions. Muchmore (1971) summarized the records of pseudoscorpion phoresy in Central and North America as presented by Beier and as published since 1948.
Nelson, Sigurd Jr.
"Phoresy by Pseudoscorpions,"
The Great Lakes Entomologist: Vol. 4
, Article 5.
Available at: http://scholar.valpo.edu/tgle/vol4/iss3/5