Gnamptogenys mediatrix Brown, 1958g: 326, fig. 15 (w.q.) BRAZIL (Pará). Neotropic.

Primary type information: Primary type material: holotype worker. Primary type locality: Brazil: Pará, Belém (F. Baker). Primary type depository: MCZC. Secondary type information: Secondary type material: 5 paratype workers, 1 paratype queen. Secondary type locality: 1 paratype worker with same data as holotype, 3 paratype workers Rio de Janeiro (no collector’s name), 1 paratype worker Rio de Janeiro, Jardim Botanico (H. Souza), 1 paratype queen Rio de Janeiro, Engenho Novo (C.R. Gonçalves). Secondary type depositories: MCZC, MZSP.