(I'll go alphabetically to try to keep some form of organization)
A
ANTS
- ant.jpg (325.17 KiB) Viewed 576 times
- ant2.jpg (232.78 KiB) Viewed 576 times
Ever industrious, toiling away to drag their prized possessions back to the nest.
- ant3.jpg (389.4 KiB) Viewed 576 times
I think these are
Ocymyrmex sp., which have a cool common name -
Bearded Hotrod Ants. "Hotrod" because they are some of the fastest ants, and bearded because they have bristly hairs beneath their heads which seem to be used for moving or removing sand grains to/from their nests.
The curious habit of angling their abdomen into the air while drinking perhaps serves to regulate temperature while at rest. Raising the gaster into the slightly cooler air and/or decreasing the surface area exposed to the sun while stationary aids in thermoregulation.
I could photograph during the trip. As I haven't ID'd all animals down to species level, there are certainly more than the 150+ that I could ID. 
)
