My bad, according to this site http://fireant.tamu.edu/materials/multimedia_photos/ the red ones were the fire ants.
I would love to know what the big inch-long ants were!!
This site has identification techniques http://www.controlfireants.com/identifying-fire-ants.htm


This site has identification techniques http://www.controlfireants.com/identifying-fire-ants.htm
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