Black widow but with a velvety abdomen! ID?

[Numismatica]

Hello all!
I’ve of course heard of velvet spiders but I haven’t heard of them in Arizona so I presume this is not that. I’ve seen these guys before I THINK but quite a bit smaller. This ones probably about 1/2” so I wonder if it’s different? I think I was told the other one was a mouse spider.

 

[Poonjab]

kukulcania arizonica.

Common names:

• Arizona black hole spider
• Velvet nibbler

 

[The Snark]

I don't know. Looks exactly like a black widow. Except the legs. And the abdomen color. And shape. But the cephalothorax is slightly similar.

 

[Numismatica]

kukulcania arizonica.

Common names:

• Arizona black hole spider
• Velvet nibbler

I’d say you are correct but you probably already knew that haha! I found it underneath a rock and of course the abdomen is velvety. Matches perfectly! Thank you!

 

[Albireo Wulfbooper]

I don't know. Looks exactly like a black widow. Except the legs. And the abdomen color. And shape. But the cephalothorax is slightly similar.

It certainly has the correct number of legs for a black widow.

 

[Numismatica]

I don't know. Looks exactly like a black widow. Except the legs. And the abdomen color. And shape. But the cephalothorax is slightly similar.

It certainly has the correct number of legs for a black widow.

You guys I promise I just said that because it was cold and I couldn’t think of any better description. It’s black and shiny lol.

 

[darkness975]

Aside from the rambling in this thread its a
Kukulcania arizonica

 

[Dead Blue Deer]

This is a Plectreurys tristis. They are commonly mistaken for Kukulcania sp. and I see them often in Arizona. They seem to fulfill the same ecological niche as Kukulcania.

 

[Albireo Wulfbooper]

This is a Plectreurys tristis. They are commonly mistaken for Kukulcania sp. and I see them often in Arizona. They seem to fulfill the same ecological niche as Kukulcania.

Cool! I wasn't familiar with this genus so I looked it up - BugGuide.net points out that "The large clasping spur on on tibia I and the thick, curved femur I are diagnostic for the genus." - features that are distinguishable in the second photo (though my amateur eyes cannot detect them in the first). Thanks for your ID and the introduction to this cool critter!