Nesomyrmex flavigaster Csősz & Fisher, 2016d: 146, figs. 1, 26-29 (w.) MADAGASCAR. Malagasy.

Primary type information: Type-material: holotype worker. Type-locality: Madagascar: Rés. Spéc. de Cap Sainte Marie, 12.3 km. 262° W Marovato, -25.58167°, 45.16833°, 200 m., 11.ii.2002, BLF05530 (Fisher-Griswold Arthropod Team). Type-depository: CASC. Type-specimen: CASENT0453374. Secondary type information: Paratype-material: 25 paratype workers. Paratype-locality: same as for holotype. Paratype-depository: CASC.