Oligomyrmex stenopterus Kusnezov, 1952i: 184, fig. 2 (q.) ARGENTINA (Misiones). Neotropic.

Primary type information: Primary type material: 5 syntype queens. Primary type localities: 3 queens Argentina: Misiones, Puerto Bemberg, iii.1945, nos 746, 3596 (Hayward) (invalid restriction of type locality by Kempf, 1972b: 173; no lectotype designated), 2 queens Misiones, Loreto, no. 6087 (A. Ogloblin). Primary type depositories: ICNB, IMLT, MZSP. Primary type specimen: MZSP0084899. Type notes: Ulysséa et al., 2025: Table S1, cite 1 syntype queen in MZSP.