Leptothorax petiolatus Forel, 1901d: 129 (w.) MEXICO (Morelos). Neotropic.

Primary type information: Type-material: lectotype worker (by designation of Prebus, 2021b: 123). Type-locality: lectotype Mexico: Morelos: Cuernavaca, in Tillandsia, (W.M. Wheeler), M.C.Z. cotype 21005. Type-depository: MCZC. Type-specimen: MCZENT00021005 (top specimen on pin). (Source: Prebus, 2021b: 122.) Secondary type information: Paratype-material: 1 paralectotype worker. Paratype-locality: same as for lectotype (same pin). Paratype-depository: MCZC. Paratype-specimen: MCZENT00021005 (bottom specimen on pin). (Source: Prebus, 2021b: 122.) Type notes: Baroni Urbani, 1978b: 424, recorded syntypes as 7 workers, 1 queen, of which 4 workers, 1 queen are in MCZC, 3 workers in MHNG.