|A pseudoscorpion (aka "false scorpion"), showing the pincher-like pedipalps that give the group its name|
The majority of pseudoscoprion species are found in the tropics, but there are also those found in colder climes. Rarely, they can turn up inside of homes. They are most often found in humid areas, so if found in a house they will usually be seen in bathrooms or basements. Since these animals are harmless, if you find one in your home it's recommended you leave them be. However, the best way to get rid of them is to dry out the area they are found.
|Pseudoscorpion phoresy on a fly|
Though there are about two thousand species of pseudoscorpion, they are apparently difficult to identify.
Sources are Penn State, University of Minnesota, Texas A&M, and Michigan State University. Images are from Wikimedia Commons under Creative Commons licenses: one, two.