Iridomyrmex mapesi is an extinct species of ant in the genus Iridomyrmex. Described by Wilson in 1985 in the United States, the fossil found is in a considered poor conditionWilson, E. O. 1985f. Ants from the Cretaceous and Eocene amber of North America. Psyche (Camb.) 92: 205-216 (page 211, figs. 4, 5 worker described)
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