This wasp was spotted on the ground in a sandy area at the intersection of two cross-county trails in the Baars-Firestone Wildlife Sanctuary at the University of West Florida. After I took a few photos, I saw another nearby, then I looked up and realized there were a whole bunch of them that appeared to be digging in the ground. Assuming they were yellowjackets, I decided that the better part of valor might be discretion, so I moved along the trail without taking more photos.

The two yellow stripes on the thorax suggested Southern Yellowjacket, Vespula squamosa. The pattern, however, doesn't look quite like any Southern Yellowjacket photos I've seen, but perhaps it's variable. Can someone tell if this is V. squamosa or if I am totally off base?

Update: Once I knew these weren't yellowjackets, I returned and took additional photos of more individuals:

Wasp #2:

Wasp #3:

Wasp #5:

I hope some of these are useful in narrowing down the ID. If a clearer photo of some particular feature would be useful, please let me know as I have more photos. On the other hand, if these are too many photos, please feel free to frass.