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Entomology (Study of Bugs)/Identification- spider?

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Question
TX Spider
TX Spider  
We recently found this spider inside our house in North Houston. It appears to have only six legs. Can't seem to find this species in any of my field guides. I was thinking sac spider?

Answer
Hi, Tina:

Thank you for including the very clear image with your question.

This is a "ghost spider" in the family Anyphaenidae.  I have not yet figured out how to identify most of them to genus; but I did write a blog post about them:

http://bugeric.blogspot.com/2009/10/halloween-special-ghosts-and-pirates.html

and more about them here, too:

http://bugguide.net/node/view/38439

They are not considered dangerously venomous to the average, healthy human or pet.

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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