Macromischa isabellae Wheeler, 1908a: 138, pl. 11, figs. 1, 2 (w.q.m.) PUERTO RICO. Neotropic.

Primary type information: Primary type material: syntype workers (number not stated, “numerous”), 1 syntype queen, 4 syntype males. Primary type locality: Puerto Rico: summits Mt Morales & Mt Mandios (ca 3000 ft), nr Utuado, iii.1906 (W.M. Wheeler). Primary type depositories: AMNH, MCZC, MHNG, NHMB. Type notes: Baroni Urbani, 1978b: 458, records 52 syntype workers.