Myrmecia cordata Fabricius, 1804: 425 (w.) GUYANA (Essequibo). Neotropic.

Primary type information: Primary type material: 3 syntype workers. Primary type locality: South America: (“Habitat in America meridionali Dom. Smidt. Mus. Dom. de Sehestedt.”) (no further data). Primary type depositories: ZMUC, ZMUK. Type notes: 1) Zimsen, 1964: 428, cites 3 worker syntypes (2 in ZMUC, 1 in ZMUK). 2) Type material is labeled “Essequibo Smidt. Mus. de Sehestedt”; hence type locality is Guyana: Essequibo.