E-Fauna BC: Electronic Atlas of the Wildlife of British Columbia

Chelifer cancroides L.
House Pseudoscorpion
Family: Cheliferidae

Photo of species

© Bryan Kelly-McArthur  Email the photographer   (Photo ID #78224)

E-Fauna BC Static Map
Distribution of Chelifer cancroides in British Columbia
Details about map content are available here.


The House Pseudoscorpion is a large cosmopolitan species that is frequently observed in houses (Levi 1948). Jacobs (2010) provides the following description: "The house pseudoscorpion adult is 3 to 4 millimeters in length and has a rich mahogany color. Its four pairs of legs increase sequentially in length. It has one eye on each side of its cephalothorax (head plus thorax) and a 12-segment abdomen (only ten are easily visible). Overall, the body resembles a teardrop. The pedipalps, located in front of the first pair of legs, are more than twice as long as the legs. When extended, crab-like, they measure 7 to 9 millimeters across."

Read about Pseudoscorpions in Canada.

A photographic key to the Pseudoscorpions of Canada and the Adjacent US, prepared by Christopher Buddle, is available.

Status Information

Origin StatusProvincial StatusBC List
(Red Blue List)
BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia.

Synonyms and Alternate Names

Parachelifer muricatus (Say, 1821)

Additional Photo Sources

General References

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2021. E-Fauna BC: Electronic Atlas of the Fauna of British Columbia [efauna.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-07-14 4:24:17 PM]
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© E-Fauna BC 2021: An initiative of the Spatial Data Lab, Department of Geography, UBC