You know, being an entomology nerd, I typed the ant genus "pseudomyrmex" into the search box... I really didn't expect that I'd get anything, but what a pleasant surprise!!!
I see you've got what seems to be a Pseudomyrmex gracillis there. The common name for this species is "Elongate twig ant" though I've heard many others as well. They're pretty ornate, and if you get her under a scope, you'll see that she's got some HUGE eyes (a characteristic of genus Pseudomyrmex). Thier sting does hurt, but it doesn't last long, so not as bad as a bee imo.
They usually won't sting unless provoked... sadly, this past Thursday I accidentally pressed my hand down ontop of one. Ouch! Though like I said, it only hurts for a minute or two after the sting, so it was fine after that.