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Species Solenopsis xyloni - Southern Fire Ant

2-beady-humped (orange-)red Ants with blackish-and-beige-brown-striped abdomen and unarmed thorax - Solenopsis xyloni - female Solenopsis xyloni - female Solenopsis? - Solenopsis xyloni Solenopsis? - Solenopsis xyloni Solenopsis xyloni? - Solenopsis xyloni Solenopsis xyloni? - Solenopsis xyloni Solenopsis reproductive? - Solenopsis xyloni Myrmicine ant in compost pile - Solenopsis xyloni - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
Superfamily Formicoidea (Ants)
Family Formicidae (Ants)
Subfamily Myrmicinae
Tribe Solenopsidini
Genus Solenopsis (Fire Ants and Thief Ants)
No Taxon (Fire Ants)
Species xyloni (Southern Fire Ant)
SOL-en-OP-sis zie-LOE-nee
Explanation of Names
Solenopsis xyloni McCook 1879
Generally similar to S. invicta in color and morphology. Differentiation is based on the lack of median tooth on the clypeus.

Due to variation within colonies, several major workers should be examined in order to ensure that this feature is absent.
Historically the most common native fire ant across southern US(1), this species has been significantly reduced by the expansion of S. invicta.
Mounds are not as large as S. invicta, often not seen at all.
Internet References