Macromischa isabellae subsp. mutica Smith, 1937: 847 (w.) PUERTO RICO. Neotropic.

Primary type information: Primary type material: syntype workers (number not stated). Primary type locality: Puerto Rico: Maricao Insular Forest, ca 3000 ft, 18.viii.1935, and 11.vii.1935 (M.R. Smith). Primary type depositories: AMNH, MCZC, NHMB, USNM. Type notes: Baroni Urbani, 1978b: 464, cites 14 worker syntypes (3 AMNH, 4 MCZC, 4 NHMB, 3 USNM).