Here's a couple of shots of some Jumping Ants that made their presence felt the other day at work (never mind the aggro!!)
Luckily I had my camera & kit with me
Canon 40D, Tamron 90mm Macro & canon ringflash
Nicely captured, hope you didn't get bitten in the exercise.
We call them Jackjumpers down here, ours are about 15mm long; our inchman is a larger slower ant and doesn't jump. You can usually see them on the ground because their pincers are quite a light brown as you've captured. Don't know about your species but our jackjumpers will deliberately head for you from metres away to bite.