Entomology (Study of Bugs)/Weird bug

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Question
Weird bug!
Weird bug!  
I'm located in napanee, Ontario, Canada, I have seen this bug in my house probably 10 times in 2 yrs, they r very small, it is usually in the bathroom, but sometimes in a bedroom, I see them very randomly, it is always just on the wall, I've never seen it move, just wondering what it is and if is harmful to little children or animals, thanks

Answer
Hi, Ashley!

Thank you so much for including the image with your question.  I am changing this to a "public" question because I have been asked about these several times before, but rarely has anyone included an image with their query.

The creature is a "pseudoscorpion," a type of tiny arachnid.  They do not get larger than this.

I will have an article on these in the "Missouri Conservationist" magazine in July, 2014, but here is a great online resource in the meantime:

http://museum.wa.gov.au/catalogues/pseudoscorpions

and another one:

http://insects.about.com/od/noninsectarthropods/p/Pseudoscorpions.htm

They are not the least bit dangerous to anything but tiny insects and mites.  I am a bit jealous, as I don't see these animals very often :-)

Eric

Entomology (Study of Bugs)

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Eric R. Eaton

Expertise

I answer insect and spider identification questions ONLY. Attach images if possible. No "what bit me?", "what do I feed this bug in captivity?", or science fair project questions please. NO TECHNICAL QUESTIONS ABOUT INSECT PHYSIOLOGY.

Experience

Principal author, Kaufman Field Guide to Insects of North America. Professional entomologist employed previously at University of Massachusetts, Chase Studio, Inc., and Cincinnati Zoo; contract work for West Virginia Department of Natural Resources, Smithsonian Institution, and Portland (Oregon) State University.

Publications
Author, Kaufman Field Guide to Insects of North America, Missouri Conservationist magazine, Ranger Rick, Birds & Blooms, Timeline (journal of the Ohio Historical Society). I have contributed to several books as well.

Education/Credentials
Oregon State University, undergraduate major in entomology, did not receive degree.

Awards and Honors
One of the top 50 experts in all categories for AllExperts.com, 2009.

Past/Present Clients
Principal author of the Kaufman Field Guide to Insects of North America, Smithsonian Institution (contract), Cincinnati Zoo (employer), Portland State University (contract), Chase Studio, Inc (employer), Arkansas Museum of Discovery (guest speaker). Currently seeking speaking engagements, leadership roles at nature festivals, workshops, and ecotours.

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