Mystrium barrybressleri Yoshimura & Fisher, 2014: 34, figs. 8B, 10A,C, 13A,C, 14A, 31A,C, 33A-C, 34A-C, 35A,B, 36A,C,E, 37A, 38A, 39A, 40A, 41A, 42A (w.q.m) MADAGASCAR. Malagasy.

Primary type information: Primary type material: holotype worker. Primary type locality: Madagascar: Toliara, Forêt Ivohibe, 55.0 km. N Tolagnaro, -24.569°, 47.204°, 200 m., 2-4.xii.2006, BLF15450 (B.L. Fisher, et al.). Primary type depository: CASC. Primary type specimen: CASENT0129838. Secondary type information: Secondary type material: 2 paratype workers. Secondary type locality: same as for holotype. Secondary type depositories: BMNH, MHNG. Secondary type specimens: CASENT0129839, CASENT0129840.