Monomorium infuscum Heterick, 2006: 176, fig. 28 (w.) MADAGASCAR. Malagasy.

Primary type information: Type-material: holotype worker. Type-locality: Madagascar: Prov. Toamasina, 5.3 km. SSE Ambanizana, Andranobe, 15°40’S, 49°58’E, 425 m., 21.xi.1993, #926(43)-12, sifted litter (leaf mold, rotten wood), rainforest, BLF00926 (B.L. Fisher). Type-depository: CASC. Type-specimen: CASENT0173591. Secondary type information: Paratype-material: 25 paratype workers. Paratype-locality: same as for holotype. Paratype-depositories: ANIC, BMNH, CASC, MCZC.