Sometimes the tiniest creatures can freak you out! One creature that may give you the chills is the pseudoscorpion. Pseudoscorpions are arachnids like other traditional scorpions, but they lack the stinging tail. They can range from 2 to 8 millimeters in length, so they often go unnoticed. Pseudoscorpions have four pairs of legs and two body regions. In addition to their legs, they possess a pair of pincer-like claws called pedipalps. Pseudoscorpions are light brown in color and are teardrop shaped similar to a tick. Their pedipalps are about twice as long as their body regions.

An adult pseudoscorpion. Photo Credit: Steve Jacobs, Sr. – Penn State Extension

Pseudoscorpions are often found in bathroom sinks and tubs and are not dangerous. They eat small arthropods such as caterpillars, flies, ants, beetle larvae, and booklice. Most species are tropical, but they can be found throughout the continental United States.

Female pseudoscorpions produce 20 to 40 eggs, at one time, that they carry beneath their abdomens. After the eggs hatch, the young stay with their mother for several days. Sometimes they ride on her back during this time. Adult pseudoscorpions can live up to four years.

If anything, pseudoscorpions are beneficial, as they are predators of nuisance insects. It is not recommended to use pesticides to control these arachnids.

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