Monomorium arenarium Heterick, 2001: 396, figs. 34, 135, 144, 152, 177 (w.q.) AUSTRALIA (South Australia). Australasia.

Primary type information: Type-material: holotype worker. Type-locality: Australia: South Australia, Belair, 13-17.i.1972, trap 3 (P.J.M. Greenslade). Type-depository: ANIC. Secondary type information: Paratype-material: 12 paratype workers, 4 paratype queens. Paratype-locality: 1 paratype worker with same data as holotype but iv.1971, 2 paratype queens South Australia, Black Oak Ck, Koonamore, 15.iv.1973 (P.J.M. Greenslade), 1 paratype queen with same data as last but iv.1973, 2 paratype workers, 1 paratype queen South Australia, Nat. Park, Lofty Range, 23.iii.1969, 1800 ft, ANIC ants vial 66-74, 3 paratype workers Tasmania, Greens Beach, 22.xii.1990 (B.B. Lowery), 4 paratype workers Western Australia, Esperance, 2.i.1970 (B.B. Lowery), 1 paratype worker Western Australia, Nornalup, 18.xii.1969 (B.B. Lowery), 1 paratype worker Western Australia, Swanbourne, 19.vii.1987, 266/6MonBH46 (B.E. Heterick). Paratype-depositories: ANIC, BMNH, CUTP, MCZC, QVMT.