Monomorium nightcapense Heterick, 2001: 433, fig. 42 (w.eq.) AUSTRALIA (New South Wales). Australasia.

Primary type information: Primary type material: holotype worker. Primary type locality: Australia: New South Wales, Blue Knob, Mt Nightcap Range, 3000 ft, 5.ix.1966, ANIC ants vial 1.147 (B.B. Lowery). Primary type depository: ANIC. Secondary type information: Secondary type material: 5 paratype workers, 1 paratype ergatoid queen. Secondary type locality: 5 paratype workers with same data as holotype, 5 paratype workers, 1 paratype ergatoid queen with same data as holotype but A211. Secondary type depositories: ANIC, BMNH, MCZC.