Atta (Trachymyrmex) bugnioni Forel 1912:186. Worker: Colombia. Combination in Trachymyrmex: Gallardo, 1916:242. Senior synonym of abortivus, cucumis, humilis, morgani, schomburgki and tucuche: Weber, 1967:273.Natural History:

In Costa Rica I have collected this species twice. Both collections were from seasonal dry forest habitats, in Winkler samples of sifted leaf litter from the forest floor. One collection was from Finca La Pacifica, in a patch of riparian forest, and the other was from Santa Rosa National Park, in the "bosque humedo."