Unidentified

Picture ID 96675

Picture of unidentified spider

Comments & ID Thoughts

I have recently found a spider with a red hourglass belly, looked it up and realized it was a brown widow. I found this one in the same area. It looks similar, but doesnt have a red belly. I cant figure out how to send more than one picture to include belly photo. I'll try sending separately!

  • Submitted by: 
    Stinky
  • Submitted: Dec 2, 2019
  • Photographed: Dec 2, 2019
  • Spider: Unidentified
  • Location: FALLS CHURCH, Virginia, United States
  • Spotted Indoors: Other
  • Found in web?: No
  • Attributes:
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TangledWeb

You figured out how to get around the one photo thing. Did you take any pics of the top of the spider? Those are much more useful for identification. This isn’t a black or brown widow. Brown Widows have red-orange wide hourglass marks on the underside. Yours looks like genus Steatoda or Parasteatoda. Either way it is a good household bug hunter. Not dangerous nor aggressive. They just want to avoid us. Please add a dorsal (back) pic if you can.

TangledWeb

Thank you for clarifying that. I labeled the post. This may be Parasteatoda tepidariorum, a Common House Spider. They are shaped like Widows. Their markings are black, gold, white, silver blotches. They’re not dangerous to humans.

Galvantula

Maybe it’s just me, but I like the common name “American House Spider”. When I hear “house spider” I initially think of big, hairy dudes like Eratigena and Kukulcania. P.tepidariorum is so very unlike those that calling it a “common” house spider feels weird.

TangledWeb

Galvantula, it depends on where you grew up. I only saw tiny jumping spiders in the house and some Pholcidae spiders. Anything bigger than that would have caused a big commotion with my parents and would have been a “not in MY house spider.” I didn’t even know that there were common large spiders in New England until a year ago! I have P.tepidariorum covering the outside of my house now, I don’t think of them as indoor house spiders either.

TangledWeb

This is the dorsal photo.

TangledWeb

You’re welcome! Yes, the dorsal plane is the back of a creature in 2D, from what I remember from high school Anatomy class. Like if you had a big pane of glass stuck to your back, it’s what people would see looking directly at the glass. I think of fishing to remember that. The big fin on a fish back is the dorsal fin. V shaped wounds sounds like an insect, spiders puncture with two fangs, they can’t actually bite or chew. There’s double sided tape that you can put around your bed to catch and stop the creatures -except… Read more »

TangledWeb

You’re very welcome! Since you say the wounds are bigger than insect and spider bites, my next thought it is bat bites. Virginia has a lot of bats! https://www.humanwildlife.cmi.vt.edu/Species/bats.htm I just learned that it is illegal in Virginia to poison any animal in a home other than mice and rats! I don’t know if they are including insects and spiders in their definition of “animal.” Either way, that’s interesting! Bats can get into homes fairly easily if they try. They can go in through an attic, window, or chimney or damaged roof. If you have a landlord please ask them… Read more »