Monomorium lacunosum Heterick, 2001: 382, figs. 25, 58 (w.) AUSTRALIA (South Australia). Australasia.

Primary type information: Primary type material: holotype worker. Primary type locality: Australia: South Australia, 25 km. SSW Pinnaroo, 35°28’S, 140°47’E, 24.x.1983, ANIC berlesate no. 890 (J.D. Gnomon & J.C. Cradle). Primary type depository: ANIC. Secondary type information: Secondary type material: 3 paratype workers. Secondary type locality: same as for holotype. Secondary type depositories: ANIC, MCZC.