Nesomyrmex iku Arredondo & Guerrero, 2025: 151, figs. 22, 29 (w.) COLOMBIA (Magdalena). Neotropic.

Primary type information: Primary type material: holotype worker. Primary type locality: Colombia: Magdalena, Santa Marta, Sierra Nevada de Santa Marta, 10.816667°N, 73.650000°W (no collector’s name). Primary type depository: IAVH. Primary type specimen: IAvH-E-75014. Secondary type information: Secondary type material: 1 paratype worker. Secondary type locality: same as for holotype. Secondary type depository: CBUMAG. Secondary type specimen: IAvH-E-75007.