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Common House Spider

parasteatoda tepidariorum

Description:

Large brownish orange abdomen, 7-10mm

Habitat:

I have several of these groupings on porch ceiling/wall. One spider with 2-4 egg sacs (I assume that is what they are).

Notes:

They do not move much. I blew on this one just to make sure it was still with us. They are all over around my house and have always been curious what they were.

1 Species ID Suggestions

GregInch
GregInch 12 years ago
Common House Spider
parasteatoda tepidariorum Species Parasteatoda tepidariorum - Common House Spider - BugGuide.Net


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7 Comments

AshleyBradford
AshleyBradford 12 years ago

I have plenty of them living in my house, and they all make plenty of those little sacs, which, in turn, make a gazillion more... This one and her boyfriend are currently living right next to my fireplace:
http://www.flickr.com/photos/zxgirl/6262...

I haven't seen fit to throw them out just yet, but if an egg sac appears, out they go!

GregInch
GregInch 12 years ago

Oh dear. The Family is "Cobweb Spiders." I'm going to have a field day when I bring the camera inside and try to identify those critters :)

GregInch
GregInch 12 years ago

Awesome Ashley, thanks! I think that's it. It makes sense too, "common house spider" because they are everywhere. The spiky egg sac and bands on legs was my argument against brown widow too. Thanks a bunch.

AshleyBradford
AshleyBradford 12 years ago

Some are very plain, like this one:
http://bugguide.net/node/view/145440

And you can see the leg and body color match yours there. The egg sac of yours is the right shape. This one also looks a lot like yours, though with a color shift that could just be due to lighting:
http://bugguide.net/node/view/565528/bgi...

Brown widows don't look like this, and they create spiky egg balls like these:
http://bugguide.net/node/view/448775

They have distinctive bands on their legs:
http://bugguide.net/node/view/454464/bgi...

Hope this helps!

GregInch
GregInch 12 years ago

No, the ones here are very drab. Mostly brownish. It was only after I got a zoomed in picture did I see it may actually be orangish. A friend here keeps calling them "brown widows," but I'm doubting that after researching due to the lack of color and shape of egg sacs.

AshleyBradford
AshleyBradford 12 years ago

Oh and yes, those are egg sacs.

AshleyBradford
AshleyBradford 12 years ago

Kind of plainly-marked compared to those I find, but their color is variable anyway. I suspect she's one of these:
http://www.flickr.com/photos/zxgirl/6236...

Do any of the others look more like that? They're very common around houses - mostly inside of mine, but I find them outside as well.

GregInch
Spotted by
GregInch

North Carolina

Spotted on Oct 24, 2011
Submitted on Oct 24, 2011

Spotted for Mission

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