Large, entirely orange-red ant. Commonly known as a harvester ant because its diet is predominantly seeds. Colonies have obvious entrances, with many small excavated pebbles spread about. Ants can be seen foraging during the day at any temperature, although individual colonies may go through extended periods were they do no foraging at all. Workers will sting, but colonies are not unduly aggressive. Sexuals are released in great numbers in the late spring (May and June) (Nonacs).