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  1. #1
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    What kind of spider is this?

    Can anybody identify this spider for me? I found this guy just this morning in a tote where I keep my feeder crickets. When I first looked at it I thought "Hobo Spider" but I'm not sure. I'm in SLC, Utah.
    Thanks for you help!

    Click image for larger version. 

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  2. #2
    Administrator Eric's Avatar
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    Looks like a male funnel-web weaver in the family Agelenidae, genus Tegenaria. Mandy is really good at identifying the different species.

    Meanwhile, I'm moving this thread to the "Spider and Arachnid Identification" forum where it belongs. Thanks for sharing the image and story, Jigs.

    Eric

  3. #3
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    That is most certainly a mature male Tegenaria domestica.

    Location locks it in. T. gigantea is not found in Utah, and the banded legs definitely rule out T. agrestis which means this can only be T. domestica!

    The size also confirms this. barn weavers are much smaller then the other two.

  4. #4
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    Cool! thanks a ton for the info guys. I ended up letting him loose in a field next to my work.

  5. #5
    Administrator Mandy's Avatar
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    Yep, definitely an adult male Tegenaria domestica.

    Quote Originally Posted by Phil View Post
    That is most certainly a mature male Tegenaria domestica.

    Location locks it in. T. gigantea is not found in Utah, and the banded legs definitely rule out T. agrestis which means this can only be T. domestica!

    The size also confirms this. barn weavers are much smaller then the other two.
    (You probably know this already, but I'll still mention it...) Besides the banded legs, in adult males you can also use the size of the palps to tell a Tegenaria agrestis (hobo) from a Tegenaria domestica (barn funnel weaver). The bulb of the palp on male hobos is huge compared to the small, slender bulbs that the male barn funnel weaver has. That's probably the most reliable method to use for the males, even more so than location/range or the banded legs (sometimes the bands aren't visible on some T. domestica).
    Click image for larger version. 

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  6. #6
    Administrator Eric's Avatar
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    You are most welcome! Thanks for being so friendly to the spider and letting it go :-) Gold star for you!

    Eric

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