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Small aggressive colonial ants capable of inflicting quite painful bites (through delivery of formic acid). They appear to be omnivorous scavengers and hunters.
In grassy lawn surrounded by a large wooded yard near a disturbed patch of remnant lowland forest.
There is no mound of sand grains outside of the cavity so it is either a new nest or a reconnaissance on some other kind of cavity.
2 Comments
Yes, I know. I run around in flip-flops most of the time!
You must look where you walk, as sometimes it is in Florida. You don't want to stand on a fire-ant mound!