Monomorium lorenzoi Seifert, 2025: 78, figs. 29, 30 (w.) U.S.A. (California). Nearctic.

Primary type information: Primary type material: holotype worker. Primary type locality: U.S.A.: [California, San Diego], 32.83908, -117.04528, 85 m, Mission Trail Park, sandy river bank, riparian vegetation, 22.iii.2024 -3569 (L. Fraysse). Primary type depository: not stated, presumably SMNG. Secondary type information: Secondary type material: 2 paratype workers. Secondary type locality: same as for holotype. Secondary type depository: not stated, presumably SMNG.