Mystrium shadow Yoshimura & Fisher, 2014: 88, figs. 19A, 21B, 25B,D, 28D, 30B, 31D, 32A,C, 37G, 38G, 39G, 40G, 41G, 50E, 51E, 52E, 53E, 54E, 55E, 56E (w.eq.m.) MADAGASCAR. Malagasy.

Primary type information: Type-material: holotype worker. Type-locality: Madagascar: Antsiranana, Forêt de Binara, 9.1 km. 233° SW Daraina, -13.26333°, 49.60333°, 650-800 m., 3.xii.2003, BLF09661, (B.L. Fisher et al.). Type-depository: CASC. Type-specimen: CASENT0318933. Secondary type information: Paratype-material: 4 paratype workers, 3 paratype ergatoid queens. Paratype-locality: same as for holotype. Paratype-depositories: BMNH, CASC, MCZC, MHNG, NHMB. Paratype-specimens: CASENT0077646 to CASENT0077648, CASENT0318920, CASENT0318931, CASENT0318932, CASENT0318934.