Can anyone identify this spider?

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I have a friend who is self-teaching herself to identify her local spiders, but this one seems to be avoiding identification by both of us.
Here’s a list of attributes:
*found in the woods in a Pittsburgh Pennsylvania (northeastern inland US) suburb
*almost certainly a baby spider
*makes a cobweb
*mostly dark brown body
*striped pattern on legs
*black and white patterned abdomen
*mostly black underside
*bright red/orange mark on underside
*appears to be a female

According to her, “My closest guess is Pityohyphantes but that still doesn’t explain the red marking”

I don’t know much about spiders, so I was hoping someone else could help. Invertebrates are not my area of expertise :)

I don't know the spiders well, but start in Theridiidae (Steatoda?). Have you posted images to ID Request on BugGuide? Lots of spider experts there!

Do you think it is a North American furrow orb-weaver? It looks so cute in this picture.
Image search engine tells it is a barn spider but I'm not convinced.

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(Larinioides cornutus)

Roger wrote:

Do you think it is a North American furrow orb-weaver? It looks so cute in this picture.
Image  search engine tells it is a barn spider but I'm not convinced.

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(Larinioides cornutus)

The shape of the abdomen is not right, and that is made a 'cobweb' should also rule out Araneidae. It's got to be a theridiid, but I don't have a lot of experience with them outside of the widows.

bmathison1972 wrote:

I don't know the spiders well, but start in Theridiidae (Steatoda?). Have you posted images to ID Request on BugGuide? Lots of spider experts there!

I have never heard of BugGuide before, but I will request there! Thank you!

I'm not familiar with American fauna in general and their spiders in particular, but it remind me very much the European species of Theridion. However there are many other genus of Theridiidae that also could be similar.

[quote="bmathison1972"]

Roger wrote:

Do you think it is a North American furrow orb-weaver? It looks so cute in this picture.
Image  search engine tells it is a barn spider but I'm not convinced.


The shape of the abdomen is not right, and that is made a 'cobweb' should also rule out Araneidae. It's got to be a theridiid, but I don't have a lot of experience with them outside of the widows.

3000 species to choose, I have still a lot to learn before trying to identify a spider. Better learning the generic features first.

Sorry, I can't help at all , - to me, there are large spiders, small spiders, and those with very long legs that I do NOT want in my bed