Entomology (Study of Bugs)/unknown spider


brown spider
brown spider  

spider 2
spider 2  
Found this in my room between the bed and wall. 6-26-13 at 130am. It crawled a little. Not sure if it was in the sheet or not when I was adjusting them. It was about the size of a quarter to include the legs. I live in south central Minnesota.

Hi, Karsten:

Your images depict a type of crab spider in the family Thomisidae, probably the genus Xysticus .  They do not spin webs, but usually ambush prey by lying in wait on tree trunks or foliage.  They sometimes wander indoors by accident in their search for new hunting grounds.

No crab spider of any kind is considered dangerously venomous to the average healthy person or pet.


Entomology (Study of Bugs)

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Eric R. Eaton


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.


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.

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.

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

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

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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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