Myrmecocystus baja Sankey-Alamilla et al., 2024: 77, figs. 3-12 (w.q.m.) MEXICO (Baja California). Nearctic.

Primary type information: Primary type material: holotype worker. Primary type locality: Mexico: Baja California, Punta Mazo coastal dunes (San Quintín Municipality), 30.424333°N, -116.012529°W, 10.iii.2023 (S.A. Hernández, E. Lopez, L.A. Sankey, A. Rincon). Primary type depository: MABC. Secondary type information: Secondary type material: allotype, 56 paratype workers, 2 paratype queens, 2 paratype males. Secondary type locality: allotype, 8 paratype workers, 2 paratype queens, 2 paratype males with same data as holotype; 48 paratype workers with same data as holotype except 15.viii.2021 (E. Lopez, L.A. Sankey). Secondary type depositories: CICI, MABC. Type notes: It is not stated where the holotype is deposited. It appears likely that it is in the first depository on the list, MABC.