Apterostigma collare subsp. dubium Weber, 1938b: 168, figs. 6, 14, 19 (w.q.) PANAMA. Neotropic.

Primary type information: Primary type material: 2 syntype workers, 1 syntype queen. Primary type locality: Panama: Canal Zone, Barro Colorado I., 31.vii.1924, no. 800 (W.M. Wheeler). Primary type depository: MCZC (perhaps also AMNH).