Nice effort.
Not bad Brian, considering.~ so not really crisp
I like the composition/crop.
Cheers, Dave
Tip of the abdomen may be fractionally out of focus, as often happens with macro shots, but the main areas are fine.
Brian, nice shot, wow your ants are big!
I don't know if this would work with your species, but I noticed that trying to capture wood ants here in the UK that they often stop when flashed. So, if your lens is reasonably 'fast' you get a second chance. Otherwise it really is a question of focussing to a point you think they might move through and go for a 'burst '.